DEPARTMENT OF PUBLIC WORKS - OpenGov NSW

1 9 2 0 . (SECOND SESSION.)

LEOISLATTVE ASSKMBLT,

N E W S O U T H W A L E S ,

REPORT OF T H E

DEPARTMENT OF PUBLIC WORKS F O R T H E

YEAR E N D E D 30 J U N E , 1920,

T O G E T H E R W I T H P L A N S .

Printed under No. 14i Report from the Printing Committee, 1 6 December, 1 9 2 0 .

S Y D N E Y : WILLIAM A P P L E G A T E G U L L I C K , G O V E R N M E N T P R I N T E R ,

1921, 7 3 8 : 355—(«) [6«.3d.]

1 9 2 0 .

( S E C O N D S E S S I O N . )

LEGISLATIVE ASSEMBLY.

N E W S O U T H W A L E S .

R E P O R T OF T H E

DEPARTMENT OF PUBLIC WORKS F O R T H E

YEAR E N D E D 30 J U N E , 1920,

T O G E T H E R W I T H P L A N S .

Printed under No. 14 Report from the Printing Committee, 16 December, 1920.

S Y D N E Y : W H X I A M A P P L E G A T E G U L L I C K , G O V E R N M E N T P R I N T E R .

1921. •387 [5, .3y . j

INDEX,

Report of Under-Secretary

AVftter 'Supply ainl Sewerjiijo Brancli—Report . . .

National ami Ijocal Qorerimient Works Branch—Report

Oovernmpnt Architect's Branch—Report . . .

Harbonm and Drainage Branch—Report

Eltx;trical Engineering Branch—Report

Government Dockyard, Walsh Island . . .

1 Testing and Inspection Branch

Survtfy Drafting Br«.Bcli . . . . . . . . . . . . . . .

1

22

62

72

8G

97

98

100

1920.

THE DEPARTMENT OF PUBLIC WOKKS, (ANNUAL REPORT, 1919-20.)

The Under-Secretary for Public Works to The Honorable JOHN ESTELL, M.L.A., Minister for Public Works and Railways.

Department of Public Works, Sydney, 29 October, 1920.

Dear Sir,

I beg to submit the following Eeport upon the operations of the Depart ment of Public Works for the financial year ended 30th June, 1920.

The gross expenditure from all sources amounted to £1,630,782 Os. 6d., which is greater than the expenditure during the preceding year, 1918-19, when the amount was £1,421,424 4s. 3d.

Prom the statements famished with this Report it will be seen that the expenditure from Loans amounted to £715,277 13s. od., from Kevenue, £489,582 15s. 9d., and from Public Works Pund, £88,692 13s. 5d. Works carried out for other Departments represented £224^,172 10s, 2d. The maip. items of expenditure

i o a n s were ;— d. Public Buildings 66,259 13 3 Harbour W^orks, &c. ... 143,582 1 2 Country Towns' Sewerage 28,522 16 8

„ Water Supplies 37,294 17 2 Metropolitan Sewerage ... 88,473 14 11

„ Water Supplies ... ... 195,715 2 1 Hunter District Sewerage 25,009 3 0

„ „ Water Supplies 68,241 16 3 lliver Murray Commission Works 55,357 15 6

Prom Ilcveuue the principal items of expenditure were :-— Public Buildings... 42,033 18 9 Iloads 18,669 13 0 Bridges ... 39,347 19 (>

Punts, Perries, and Launches ... 33,893 12 6 Harbours and Rivers 29,893 11 0 Dredge Service ... 123,106 12 9

In considering these figures it should be pointed out that in accordance with tlic usual practice direct expenditure by the Metropolitan and Hunter District Boards of Water Supply and Sewerage, the Government Dockyard at Walsh Island, and the several Industrial Undertakings under the control of the Minister for Public AVorks is not iiichidcd.

Statement (a) attaclied shows the expenditure of the Department distributed under the various headings.

» 7 3 8 7 — A

N E W S O U T H W A L E S .

Statement

Statement [b) shows the volume of expenditure for the past ten years f r o m which it will be seen that for the year just closed it is the highest since the Railway Construction Works were transferred to the Railway Department on 1st -Taniiary, 1917.

Tiie total value of land resumptions effected during the year was .C3S,178 14is. l id . , the headings of the various services concerned being shown in Statement (c).

The information a s to contracts let during the yearig shown in Statement (c?), the number being C17, having an approximate value of £1,099,509, as compared with 52.*) contracts in the preceding year with an approximate value of £1,24)3,927.

Statement {e) is a comparative one of contracts let during the last ten years. This indicates a reduction in contracts as compared with the two preceding years, and infercntially discloses a greater expenditure per medium of day labour. Tliis is substantiated by Statement (/) showing the amount of wages paid which was £508,952 13s. l i d . , compareil with £297,795 1 ts. 2d. in tho previous year.

Salaries, Equipment, and Travelling (Statement {g}), amounted to £256,005 9s. 9d., which is somewhat more than in the preceding year, when the cost for these items amounted to £213,06S l i s . l i d .

Allowing au item of £71,244 Is. 4d. for "Wages, &c., of men who would ! iavo

been employed by Contractors in supervisory capacities, the net cost of the adminis-tratiofl of the Department, including design and supervision, amounted to £189,799 17s. 9d.

O f f i c e u s .

The foHowing statement shows the distribution of the ofTiccrs of the Department, including Industrial Undertakings and the Newcastle Dockyard, but excluding the Metropolitan and Hunter District "Water Supply and Sewerage Boafds. Officers not deemed to be administrative ofTicers in the ordinary acceptance of the term have been omitted from this statement. I'or this reason Dredge Service employees, gangers, leading hands, mechanics, maintenance and ferry men, labourers, caretakers, and others who are employed either under gazetted award rates determined by the Arbitration Court, or without the specific authority of the Public Service Board, arc not included :—

Dcai (flint ion. No. of OQlcerB, Aftnoal SallirJ- (tinffTP.

Dcai (flint ion. 30tli Juiii;, 30th June,

1020. 30th Oiiiic, •Mh June,

1011)-20.

liidiiBtrlal Unilertakings NeWtiaslli' DuijkyanI

" Temporary " tJeneral Stiitl" Indiistrifil UndertakiiigN Newcastle Dockyiinl

Totals

410 n

'ifi:t 126 105

401 14 23

274 \\S 109

£

4,72r) 'J,2C,>

r)l,l77 29,041 2^,141

£ . 130,908

11,911 7,H-'S

fi4,304 80,149 24,358

liidiiBtrlal Unilertakings NeWtiaslli' DuijkyanI

" Temporary " tJeneral Stiitl" Indiistrifil UndertakiiigN Newcastle Dockyiinl

Totals 942 937 i-23 5,893 £2r.2,sls

T h e de ta i l s of c o m p a r i s o n aro :-

IitcreiMo,

Ko. of OfBcen. £ S o . et tntlceh.

Permanent— 8,701 0

Iiitltistriiv] Undcrtiikings 1 i,I4G 1 i,I4G o

I 10,47.1 • 8 Temporary.—

(jcnoml Stafi" 11 S,127 IniUistri.il UuilcrtakiiijiSa

11 ' ' ' I.UIS 13

4 'J.'il7 13

18 Tntal 10 •J I 10 •J I Net ~" ilO.ftiS ~" ilO.ftiS

Drodt'e Scrvico :—

Desi^'natlon,

IViinanent ... Tcinporary .,,

Totfil

No, of Offitwra.

30th J lint!, ilH!).

103

30th June,

148 !)4

DecrcMe 18

Annual Hrilary Clmror.

liOth .liinc, 191S-19.

£ .11,1235 16.082

aotli .Mine, loiD-ai.

£

17,551

£48,217 I iT.7,242 Increase £St,02'>

Statements are appended sliowing the Country Towns Water Supplies, Sewerage and Stormwater Drainage, carried out under the provisions of the Country Towns Water Supply and Sewerage Acts.

W'ith regard to Water and Drainage, Statement K {nide page 21) is the same as in the previous year, tlierc not having heen any further works carried out.

WATER S I P P L Y AND SEWERAGE BRANCH.

DuHng the year construction of Watf^r Supply Works was responsible for an expenditure of £302,078, of which Sydney Water Supply accounted for £195,715. During the ]>i'eceding year the total expenditure o n Water Supply AVorks only amounted to £190,870 9s. 8d. The greater expenditure during the year j u s t closed i s accounted for by development of the Avork in connection with Covdoaux, Avon, and Chichester Dams.

Photographs illustrating the progress of these w o r k s accompany tliis report.

It is interesting to note that water supplies arc n o w in operation in sixty-one towns, and the prospects of f urtlier Avork in this direction may be gauged from the fact that there are 18li municipalities i n the State, quite apart from numerous settle­ments of fair dimensions which arc embraced within Sliire areas.

The year under review may be very largely regarded as a drought year, and the necessity for adequately safeguarding future supply w a s made manifest in several country towns, various expedients having to l)c resorted to in order to obtain a supply for absolute minimum requirements. The principal towns which sufTered from shortage were Newcastle, Junee, Armidale, Lithgow, Orange, Bourke, and Kandos. It was also r.ecessary to place restrictions o n supplies at Cootamundra, Morcc, Glen Innes, Bathurst, Ooulburn, Aludgce, and other country towns.

At Newcastle the supply was maintained by cutting channels in the stream above the Pumping Station, and by prohibiting pumping operations for irrigation purposes o n tlie u p p e r river.

At Bourke also it w a s necessary to cut channels in the bed o f the river for some considerable distance above the Pumping Station to t a k e advantage o f the natural storage in waterholes in the river bed. The shortage of water at Kandos resulted in the temporary closing down o f Cement Works there.

AVatcr Supply AVorks, i n common with all others, have been seriously alVccted by t l i e general increase in prices for labour and material.

Al l important matter all'ecting the operations o f the l^raueh, as well as the Department, was the repeal o f llie Country Towns AVatcr Supply and Sewerage Acts and the inclusion o f their provisions i n the Local Government Act of 1919. The significant amendment is witli regard to the powers of sliire councils to establish water supplies in unincorporated areas. It is extremely probable this will result in a largely increased demand for water supply schemes in ttie smaller settle­ments, as apart from iniiiiieipiilities. Tht;

4t

The ahuormal weather conditions that prevailed during the greater part of the past year made many centres of population alive to the necessity for a permanent water supply and as a consequence the Branch, from an investigating standpoint, has been exceedingly busy. That the position was acute in a number of cases is shown by certain particulars made available by the Railway Department. Erom these it is gathered* that the first two emergency supplies delivered by that Department were in October, 1919, the quantity of water being 3,200 gallons. In November this had risen to 25,400 gallons; in December, to 173,000 gallons; in January, 1920, to 521,320 gallons, wdiile in Pebruary deliveries were made to no less than seventy different places, the quantity supplied being 1,697,588 gallons. Since Pebruary an additional 5,000,000 gallons has been supplied, making a grand total of 7,420,50:^ gallons delivered since the commencement of the drought.

The provision of a scheme of water supply to towns on the south-west table­lands, including Gootamundra, Stockinbingal, Temora, Barmedman, Wyalong, Murrumburrah, Harden, Young, and Grenfell, has been tho subject of further consideration, and in response to a representative deputation the Premier^ stated that a reference Avou ld be made to the Parliamentary Standing Committee on Public Works at an early date. Details of the scheme are now being worked out for submission to that body.

SPECIAL EXPERT BOARD. The Special Board of Experts to go into the requirements of Sydney with

regard to water supply, the appointment of which w as referred to in my last Report, has proceeded with its investigations. Some thirteen meetings have been held and visits were made to Cordeaux Dam and the site of the Avon Dam. A mass of technical data has been compiled f o r and fully considered by the Board enabling decisions to be arrived at as outlined in the Interim Reports, copies of which appear in the Report of the Chief Engineer for Water Supply and Sewerage relative to the work of his Branch. A great deal of important work in tlie way of gauging has also been carried out by tho Professional Secretary, Mr. A. S . Erench, and the information thus obtained has enabled much more accurate measurements to be made of the possibilities of the Sydney Water Supply Catchment Area.

In addition to the question of storage, serious consideration has also been g i v e n by the Board of Experts to the question of distribution, a request by the Metropolitan Board of Water Supply and Sewerage to the late Minister that its proposals in this latter regard should be so referred for review having been received. The recommendations made have been adopted and some works are now in course of construction.

The Interim Reports mentioned above, which have beeu submitted by the Board, dealt with the following matters :—

(a) Distribution and local storage of water. (6) Raising the height of Cordeaux Dam from 160 foot to 170 feet, (c) Avon River Dam.

Mr, Keele brought forward a proposal to bring water from the Upper Nepean and its tributaries into the Avon Dam by means of a tunnel. It was found necessary for surveys of the proposed tunnel line to be made and estimates of the cost prepared ; this work is now in hand and when completed will place the Board in a position t o give to the proposal that full consideration which it calls for and also

enable

enable them t o consider what effect the scheme would hav.i o n the works already constructed or i n course of construction o n the Sydney "Water Supply Catchment Area. Tliis investigation iias not liiudered i n a n y w a y , however, the progress of t h e developmental Avorks, roads o f access, &c., at the Avon.

Tlie Warragamba Scheme has also come under review. The Chief Engineer for "Water Supply and Sewerage has suggested a site for the dani otlier tlian tliat originally proposed, and revised estimates o f cost and information a s to how the i l o o d Avators are to be dealt Avith are being prepared for tlio Board t o enable them to g o further into the proposal.

NEAVCASTLfi WATER SUPPLY.—It was found necessary t o obtain additional information i n connection with this matter and the Avork Avas e n t r u s t e d t o

Mr. French Avho visited the district and prepared certain diagrams and data f(*r th*^

i n f o r m a t i o n o f the Board. The Board also visited the Avorks at Chichester and the Sand Beds Area north o f Stockton and received r e p r e s e n t a t i v e s of the Chamber o f Commerce, Chamber o f Manufactures, and of v a r i o u s i n d u s t r i e s at Newcastle t o

hear their views c o n c e r n i n g the p r o p o s e d Industrial Water Supply from the Sand Beds.

An Interim Report dealing with the question o f Cliicliester and the proposed Sand Beds supply Avas submitted t o the Minister (vide Mr. d c Burgh's Ucport), the r e c o m m e n d a t i o n s o f the Board being a p p r o v e d .

SOUTH CoAsr TOAVXS AVATEU SUPPLY.—In vicAV of the g r o A v l n g importancr> o f Port Kemhla as an industrial centre, the question of an adequate Avater supply i s

becoming a matter o f serious c o n s i d e r a t i o n to all those concerned, and Avith the possible influx o f ncAV and large industries t o the district, attention will have t o be: given t o the p r o v i s i o n o f a n efficient supply o f Avater. Representations o n the subject have been made and the matter has heen referred t o the Special Board for c o n s i d e r a t i o n , not o n l y o f an industrial s u p p l y for Port KomhH, h u t a l s o a

domcslic supply f o r the South Coast t o A v n s .

Generally speaking the Special Bo:u'd has, d u r i n g the pist financial y e a r ,

made considerable progress i n its investigation o f the matters referred t o i t , and, having regard to the mass of i n f o r m a t i o n a n d detail Avhlch has been sul)mitted, the work accomplished i n the period under revicAV can only be c o n s i d e r e d as very satisfactory. /

It i s Avlth regret that I haA?"e t o record tlie d e c e a s e of one of the members, Mr. J. M. Small, Avho died o n the 17th June last. By reason o f i i i s many y e a r s

c x p c r i c n e e and his i n t i m a t e k n o w l e d g e o f the Sydney Water Supply, Mr. Small b r o u g h t a mature j u d g m e n t t o bear o n the matters u n d e r revicAV and his a l i e n e e

will be felt.

MURKAY l l i V L R WATERS.—The i n i t i a t i o n o f the scheme of Avorks t o be carried out under the Iliver Murray Waters Act Avas referred to i n my Report of last year. Tlie principal Avork Avill bo the Upper Murray Storage I ) a m j u s t b e l o w

t h e junction o f the Mitta Mitta l l i v e r with the Murray, the preliminary estimate of cost for A v h i e h work Avas last year set down at £1,G JU.OOO. It i s , o f course, quite obvious that o w i n g to the operation of the basic Avage advances s i n c e the estimate was prepared that t h i s figure Avill r e q u i r e t o be very considerably increased. Tlie commencement of construction operations was marked b y the inaugural function o f turning tlie first sod b y Ilis Excellency the Governor-General, Sir Ronald Muaro Perguson, P.O., G.C.M.G., o n the 28th November, lUil). The name g i v e n t o the storage Avas " Hume Reservoir" to perpetuate the memory o f the explorer.

SEWERAGE. .

6

SEWERAGE.

The total expenditure on sewerage and stormwater construction for the period under review was £153,651, which is considerably in excess of the previous year when the amount was £87,827.

The major work, as in last year, was the Northern Suburbs Ocean Outfall Sewer, which is intended to serve the extensive district on the northern side of the harbour.

Construction work to the total value of £79,790, has been carried out on Sections 1 and 2, wiiile investigations and surveys have been carried out in connection with Sections 3 , 1, and 5 . At Newcastle the sewerage of areas totalling approximately 410 acres has been completed and handed over to the control of the Hunter District "Water Supply and Sewerage Board.

The sewering of an additional area of 130 acres at "Waratah, NewcastU', was in hand at the end of the year and will shortly be completed.

The sewerage scheme at Goulburn was completed during the year and this now brings the number of towns in the State provided with sewerage schemes up to twelve. The total cost was £91,151.

The extensive scheme for the sewerage of Canterbury, Campsie, and Jlolmoro was not put in hand during the year, but it is anticipated a commencement will be made during the present financial year.

Investigations are in hand for sewerage schemes at Ccssnoek and Moree, while additional works are proposed at Katoomba and "VVagga Wagga. A scheme for West Maitland has already been authorised by Parliament and a commencement will be made with the work as soon as funds become available.

It will be noted that the Department lias adopted the use of reinforced concrete ventilating tubes for sewers in lieu of iron and it would appear tliat the innovation is an economical one.

ROADS, BRIDGES, FERRIES, AND PURTJC WATERING PLACES.

(Other than those under Shire and Municipal control.) This Branch has had a somewhat busier year than the preceding ono, tho

total expenditure having amounted to £151,055 l / s . 4d. as against £140,105 4s. 4d. for 1918-19, the items being :— Q ([^

Roads 20,740 7 H Bridges 00,129 9 7 Perries 34,514 2 4. Public Watering Places 5,662 17 11

This is exclusive of £45,996 9s. Id. for works, funds for which were provided from Votes of other Departments.

Bridge work represented tlic bulk of the expenditure, £50,781 10s. Id. for new construction and £39,34719s. 6d. for maintenance and repairs. As pointed out in the previous year's report many bridges are now in their last stages and renewal is becoming an urgent matter. Owing also to the general development of the State the necessity for entirely new bridges is bscoming greater. Under what is known as the'* Upper Hunter Dry Road Scheme", the construction of three new bridges was entered upon under agreement with the Upper Hunter Shire Council. The agreement provided that the cost of two of the structures shall be borne by funds to be provided through the Shire Council and the cost of the third bridge is to be defrayed by the State Government. The structures will cross the Hunter River at Arden Hall, Rossingtons, and BcUtrees, and contracts have been let at £5,395, £4,512, and £fj,G29 respectively. Qther

other new bridges for which tenders were accepted during the year are Lachlan River at "VViilanthry, Lachhm River at Ilillston.

New bridges undertaken by day labour were Kiah River at Iviah, Towamba River at Towamba, and Towamba River at Now Buildings, the last-mentioned three bring replacements due to flood.

Contract bridges carried to completion during the year were :— Abercrombic River at Abererombie, Barwon River at Collarenehri, Cudgegong River at Belinafante, Lachlan River at Murrin, Macquarie River at "Wellington, Mae(|uaric River at Bathurst, Barrington River at Barrington, Mulwaree River at Goulhurn.

Preliminary investigations were carried out in connection with a number of proposals for now bridges, the principal ones being that over Middle Harbour at the Spit, across George's River, and that across the Parramatta River at Rhodes. Tliese structures will he important ones, but before construction can he undertaken the proposals will require to be reported upon by the Public Works Committc:; and arrangements made for the necessary financial provision.

BRIDGES MAINTENANCE.—It should not be a difficult matter to realise that settlement in the State is expanding with increase in population and consequently there is necessity for additional pul)lic conveniences. Each year has added to the number of structures in existence, so tliat there is a greater necessity for increased expenditure on maintenance. In the case of bridges, the amount provided for the repair, maintenance, and caretaking was £35 ,000 , wlicrcas the actual expenditure amounted to £30,3-17 19s. Cd. A still larger sum could usefully have heen expended.

ROADS.—Here again the money provision has been insufficient for requirements. The Department is responsible only for roads in the Western Division and for two special Tourist Roads, constituted " National AVorks," equalling a total mileage of 6,947, and the expenditure exceeded by £2,562 the amount provided, viz., £16,000, and, us remarked by the Chief Engineer, "Yet many desirable works have had to stand over." Closer Settlement Roads represent an expenditure of £1,026 16s. Od. for the Lands Department, while a sum of £11,276 8s. lOd. was expended on roads through Soldier Settlements, the work being done by day labour.

Expenditure on the new road from Botany to Rockdale, along Lady Robinson's Beach (General Ilolmes Drive), has been proceeding during the year and amounted to £9,130 l i s . l id . , funds being provided by the Local Government Department. The work was not completed at tlie close of the year.

Certain road work put in hand towards the close of the year by direction of the Government, while affecting some much-needed improvements, was also the means of absorbing a number of men out of employment. A length of the Liverpool-Campbelltown road has been reconditioned, but the principal work has been the reconstruction of Parramatta-road, west of .Vshfield. Tliis thoroughfare has been in a very bad state for some years past, and the work in hand is being financed by the Government on the understanding that the Municipal Councils

concerned

concerned are to repay a moiety of the actual cost involved. The Government contribution of one-half the cost is being provided through the Local Govcrnmonf Department. A determined effort has been made to counteract any added cost by reason of the class of labour employed in some instances, by the utilisation of as mucli mechanical power as possible in the haulage of metal, the excavation and rolling of the roadway.

PERKIES.—The National Perries, imdcr the control of the Department, have been maintained in working condition, but, as in the case of all otiier works, wages increases durinij the year resulted in the finaneial provision being considerably, exceeded. The prlueipal item of interest in this connection is the projected construction of a new steam punt for the George's lliver E^rry. Since the close^ of the year the offer of the Walsh Island Dockyard lias been accepted for the work • at a lump sum of £17,940. The new punt will be twice the size of the larger onei at present operating on the river and will have a carrying capacity of twenty-four vehicles and 200 foot passengers. It is hoped that the new punt "will be a means of reducing the congestion so much complained of on this service.

PcBLic WATERING PLACES.—^The Chief Engineer again draws attention to : the inadequacy of the provision made for the maintenance of public watering ' places, which are so essential for stock traffic in the Western Division of the State. As an experiment a sum of £2,000 was made available for expenditure by local Pastures Protection Boards on the repair and improvement of public watering places on the road from Cobar to Wilcannia. Owing to the closing down of tho mines at Cobar and Mount Boppy, relief work w;is provided by the sinking of a' new tank at Elouera and the deepening of the existing tank at Canbelego. ;

PUBLIC BUILDINGS.—The report of the Government Architect indicates a' slight increase in the aggregate expenditure over tlu; previous year, the figuresj being £29'4,737 Is. Gd. and £257,114 l i s . 9d. respectively. The totals are, however,; considerably less than in the preceding years of lylO-1017 and 1917-191S. The I money expended was provided from the following sources ;—

1019-20. £ s. d.

Loans r(;,259 13 3 GonsoUdated Uevonue ... 45,169 a 3 Special Deposits 21,871 19 8 Federal Works . . . G,342 5 ri Other Departmpnts 116,084 13 11 Kesumed Pmperties i>,374 11 S Public Works Fund -lU.oSu 7 11 Treasurer's Advance .0,149 1 5

Total .£294,737 1 fi

During the year the more important buildings brought to completion or approaching completion were the Central llailway Station, three new pavilions at the Coast Hospital, together with new Dhiing Hall and llccreation Hall for military patients ; Teachers' Training College at the Sydney University; additional ward blocks at Broughtv:)u Hall. Outside Sydney tho more important works were the Sanatorium for Consumptives at Broken Hill and additional blocks for many country hospitals.

The Central llailway Station is now practically completed, the expenditure for the year having amounted to £47,412, bringing tho total cost of the recent additional storeys up to £192,222. Tlie

9

The new ljuildings being erected at the Coast Hospital arc designed to form part of a complete rebuilding of the institution on modern lines.

UovAL Vi'iT.—The services of tlie Government Architect's Branch, under the direction of a suh-eommittce, -vvero largely requisitioned for the preparation of schemes of decoration and illumination in connection with the visit of His Uoyal Highness the Prince of AVales in June, 1920. The results were highly successful, reflecting the greatest credit on the officers concerned. His Excellency the Governor, Sir AValtcr Davidson, K.C3[ G., in a personal letter, expressed his appreciation of the work done.

SYDN'EY IIN-IVICRSITV—TEACiiEits' TRAINING- COLLEGE.—The expansion of the State and the better recognition of the value of the teaching profession is expressed in the erection of the Teachers' Training College within the grounds of the Sydney University. The total cost, exclusive of foundations, has amounted fo £59,804. The structure is a fine example of modern planning and construction.

BROUGHTON HALL.—The M-ar was responsible for the necessity of providing accommodation for a number of military nerve and mental cases, and to meet this necessity, a property adjoining Callan Park Mental Hospital -was acquired, and suitable buildings erected, both in the grounds of Broughton Hall as well as Callan Park.

MATERNITY HOMES have been provided at Burwood and Ashfield, wliere jn'ivate properties were purchased by the Government, and necessary alterations made for converting them for desired purposes. The extension of this class of institution is evidence of the recognition by the Government of the needs of the community for services of this description.

COUNTRY HOSPITALS.—These institutions are not directly the property of the State, hut the work is carried out at the request of the Department of Public Health.

The extensive additions carried out at the AV^allsend, Kurri Ivurri, and Cessnock hospitals arc striking testimony of the expansion of population in these mining districts.

At Gunnedah, a completely new hospital is being carried out, designed on the most modern lines. The previous buildings were of timber construction, but the new premises are constructed with walls of steel framing with metal lathing, cement rendered on all faces, finished 2 in. thick internally and 3 in. thick externally. The foundations are in concrete and ceilings of fibro cement. The cost, having regard to the size of the institution, is very moderate, viz., £7,456 6s. 5d.

New Nurses' Quarters in connection with the Newcastle Hospital are in hand, at a contract figure of £14,900. Tlie structure is in brick,

Pollowing the increase of population in these centres, new Police Slations have been found necessary at Binalong, Maude, and Bellbrook.

The calls made upon the Government Architect's Branch are many and varied, and during the past year included inspeefciona of city hotel premises for licensing purposes, soldiers' settlements, properties under the consideration of the Pair Rents Court, and also valuations for resumption purposes. In addition to construction work actually carried out, the Government Architect's Branch was also called upon for the preparation of many plans and specifications for future

works

10

Estiniatrd cost. J .

"Western Suburbs Infectious Diseases Hospital ... 71,280 Newcastle Hospital Administrative Block 47,000 AV"agga Wagga Lands Office—New Buildings ... 12,205 Dental Hospital, Sydney 10,700 Hospice for Consumptives, Little Bay ... 42,500 Alothers and Babies' Welfare Centre, Woolloomooloo ... 10,000 Stockton Mental Hospital... 8,250 Manly Hospital 109,550 Prince Alfred Hospital—Venereal Clinic 29,200 Women's Hospital, Crown-street—Additions ... 19,100 National Art Gallery—Additions... 31,850 Health Department Buildings—Additions 2^,000 Morisset Mental Hospital—Pavilion for Males 20,500 King Edward V I I Memorial.

In addition to the foregoing, a list furnished by the Government Architect shows the preparation of plans, specifications, &c., for numerous minor works. j

H A K B O U I t S A N D D R A I N A G E .

The main operations of this Branch, so far as Harbour works are concerned, have been at Coff's Harbour, Manning Uiver, Port Kembla, and Wagonga Biver»J the works at Coff's Harbour and Port Kembla being the more important. Thcj progress in connection with the former has been such that the tip head of th©': Northern Breakwater now stands at 2,170 ft. from the commencing point, whilsfei the Eastern Breakwater has been extended 35 ft. At Port Kembla the Northern Breakwater has been completed to its final cliainage, and the Eastern Breakwater now extends 2,851 ft.

With regard to dredging, the total quantity of silt removed is set down at 4,300,543 tons, at an average cost of G'7ld. per ton.

Mr. Burrows comments favourably on this figure as compared with the , previous year, more particularly when the increased rates owing to the basic wage*" and the high cost of material are taken into account.

The difficulty in obtaining materials owing to the war prevented progress in the construction of new drpdging plant, but during the year it was possible to bring close to the point of completion a new ilock Drill plant for use at Newcastle and' elsewhere. This punt is fitted with spuds for raising it above the action of tlie waves when at work. {

Two large Priesfcman Grab Cranes on pontoons (of which one is steel and the other composite built) were also nearly completed, and wdien available will be used^ for the excavation of rock after blasting. J

i

SWAMP DRAINAGE. ,

There has been no increase in the number of Draina<?e Trusts durinjr tho^ year. One Drainage Union has been proclaimed, the works in connection with*! which are being carried out by the interested landowners. I

_._ _ Hxpao-EiiBCTBic '

works. The general development of the State renders it inevitable that there must be more building for Hospitals, Police Stations, Court Houses, Colleges, Art Galleries, &c.

The plans for several extensive building works have had the attention of tha Pranch during the vear, notably the following:—

11

HYDRO-ELECTRIC DEVELOPMENT.

During tlic year investigation of tlie water power resources of the State in connection with the question of Hydro-electric development lias made considerahlo progress, and the Committee which was appointed in May, 1919, has pursued its lahours relative to the Snowy lliver, Clarence River, and Hume Reservoir Scliemes.

Tlie Hydro-electric Development (Construction) Act was jjassed in December, 1919, and the preliminary work of preparing plans and specifications for the liurrinjuck and Nymboida Hydro-electric Schemes is well in hand; in both cases tenders for the machinery have been invited.

The development of the latent powers of the various river systems in the State, having regard to the progress made in this direction in other parts of the world, notably New Zealand and Canada, is of the utmost importance to the future of tlui industries requiring power and also agriculturalists, and it is an essential factor in the problem of decentralisation, obviating the necessity for industries to be grouped on or around the coalfields in the State.

The question of the wholesale bulk supply of current from large central power stations has been engaging attention and progress has been made in the South Coast and Newcastle districts. In the former case it is proposed that the surplus power from tlie Port Kemhla Power Station be transmitted to Kiama and Nowra, &c., and to Mittagong, Bowral, and Moss Vale, in addition to supplying the construction works at Cordeaux and Avon Dams. In the case of Newcastle, the Railway Commissionci*s have arranged to supply West Maitland and Singleton with current on more advantageous terms than those offered by local private sources, such as collieries.

The importance of proper control over the supply of electricity in bulk to inuiiicipnlitios and industries has been recognised, and, with a view to scouring a sufiicient and economical regulation of such supplies, a Committee was appointed by the Minister, shortly after assuming office, consisting of representatives of the (rovernmont, Sydney and Newcastle Councils, and the Northern and Southern Colliery Companies, the personnel being :—

Mr. 0 . W. Brain, Chief Electrical Engineer, New South Wales Government Railways and Tramways (Chairman).

Mr, W. Corin, Chief Electrical Engineer, Department of Public Works. Mr. H. R. Porbes-Mackay, General Manager, Electric Light Department, City

Council. Mr. G. Allbut, Electrical Engineer and Manager, Newcastle City Council. Mr. D. McGeachie, Caledonian Collieries Ltd. Mr. A. E. 0 . Sellers, South Bulli Colliery.

The Committee is giving full consideration to the various phases of the problem and its report Mill, it is anticipated, be submitted shortly.

In the matter of municipal electric lighting and power schemes, the Amended Local Government Act of 1919 gave councils increased powers, and many of them have desired to take advantage of such powers to instal electric supplies. In view of the paucity of loan money, the Department was not in a position to assist financially, and as the necessity of adequate water supplies was greatly emphasised by tin? recent drought, it was decided that water supply schemes shouUl take precedence over electrical proposals. Inquiries were held, however, in a number of cases wdiere councils had made financial arrangements and had sought the assistance and guidance of the Department in the schemes suggested.

Proposals

12

Proposals connected with water supply schemes Averc also investigated and reported upon. The Chief Electrical Engineer reviews these in detail in his report-

The volume of work in connection Avith questions of electric supplies which has been dealt with by the Branch during the year has b e e n greater than that possible during the period of the war, and can only he considered as very satisfactory. The output of electrical machinery in England and America is becoming more normal, but the state of the financial world has militated against a lowering in any marked degree of the estimates received for electrical equipment. It i s hoped, however, that the present year will enable an improvement to be made in this direction to the advantage of the State and its Ilydro-electric schemes which are so necessary to its development.

GoVEfiNJIENT BoCKVAUD, W A L S U I S L A N D .

At the close of the year the number of men employed at "Walsh Island was 2,240 as compared with 1,067 in the previous year. This indicates in a general way the development of the establishment. The pvincipal activity was ship-building in connection wdth contract for six vessels for the Commonwealth Government. Eour of the six wxrc launched during the year, having a total tonnage of 23,200. It may perhaps be remarked that the oiEcial ceremony of launching the fourth vessel was performed by His lloyal Highness the Prince of Wales on £5th Ji".ne, 1920.

In addition to the four vessels for the Commonwealth, three steel trawlers (balance of four contracted for) were completed and handed over to the State Trawling Industry.

It is hoped to build up an extensive trade in cast-iron pipes at the Dockyard, where an up-to-date plant has been installed.

The wages paid for the year amounted to £397,247, which, distributed amongst a n average of say 2,000 workmen, gives an average wage of practically £200 per annum.

Arrangements have b e e n made with the Auditor-General for a review of tho yearly accounts of the Establishment for the sake of convenience as from 1st January to 31st December. This report, therefore, will not be available until after the close of the present year.

During the year the Dockyard has been under the control of a Board of Management comprising the then Minister, the Hon. B. T . Ball, M.L.A., Mr. A. E. Cutler, Director of Engineering, and Mr. A. M. Bomphrey, Director of Ship­building. In view of the expiry of the period of engagement of the last-named on 31st May, it was determined not to renew the engagement a s the opinion had been growing t h a t dual control of the working of the establishment was not so successful as it should h e . Mr. Bomphrey's services were accordingly terminated, and Mr. Cutler was appointed as Acting General Manager pending an attempt being made to secure a suitable gentleman from outside the State service.

In the meantime, however, owing to change in Government, following upon the General Elections, the Hon. J. Estell replaced Mr. Ball, and the Board of Control for the time being was constituted of Mr. Estell, Mr. Cutler, and the "Under Secretary. Negotiations for the appointment of a new General Manager having proved abortive, it was subsequently decided to appoint Mr. Cutler as General Manager as trom the date of the termination of Mr. Bomphrey's agreement on 31st May, 1920.

TESTING

13

TESTING AND INSPECTION BKANCH.

I regret to record that the report of tliis Branch appears for the last time above the name of itr. B. J. Smart, that officer having most unfortunately died since the presentation of his report. Mr. Smart was only 38 years of age at the time of his death, and in him the Department has lost a very valuable of&cer who possessed unusual qualifications.

The value of the material inspected during the year was £360,198 Is. 10d.» wiiieh is slightly less tiian in the previous year, and was due to the reduced output at the Newcastle Steelworks owing to shipping restrictions during portion of the year. Througli lack oI; funds, investigations into the corrosive properties of artesian bore waters were temj>orarily discontinue;!. A plant for the testing of road material is being installed, but has not yet been put into operation, A comprehensive series of tests is being made with regard to roofing materials, bituminous and slate, but have not yet been finalised. Another direction in which the services of the Testing Bi-anch are of great value is the testing of sandstone used in the construction of the dams in connection wdth the Sydney AVater Supply. Periodical tests are made, and by observation of the test results the use of material from any inferior beds of stone is avoided.

SURVEY DRAFTING.

This Branch has been busily employed during the twelve months in the preparation of detail survey plans, &c., in connection with the various works of the Department. The general increase in salaries is reflected by the figures that the st id of thirty-seven received £3,603 19s. 6d., while the staif of thirty-five received £7,520 l i s . 9d. in the previous year.

INDUSTRIAL UXDEIITAKINGS.

The Industrial Undertakings under the control of this Department are tlie— State Brickworks, Homebush; State Metal Quarries at Xiama and Martin's Creek; State Monier Pipe and lleinforced Concrete AVorks; State Motor Garage; State Timber Yards and Building AVorkshops, Uhr's Point (including Power

Station); and Building Construction Industrial Undertaking.

The results of the working of these Undertakings for the past year will be shown in detail in the report of the Auditor-General, but it is satisfactory to be able to remark here that they have all made profits on the year*s transactions, excluding the Power Station, which, although gazetted an Industrial Undertaking, does not supply the public, and in this case the Government institutions served derived the benefit of reduced charges.

STATE AUTOMATIC TELEPHONE.

During the year the proposed State Departments Automatic Telephone Exchange has been the subject of further review and investigation by the Commonwealth Postal Authorities, and the matter has now reached the stage when quotations for the necessary equipment have been invited, and it is hoped that a commencement with the installation may be made at no distant date.

K O Y A L

11

U o Y A L COMMISSION ON TUK PUBLIC SEEVICE. STAFE.—During tho year under review the Uoyal Commissioner (G. Mason-

Allard, Esq.), appointed t o enquire into the Public Service of New South Wales, presented his report upon the administration of the Department following upon t h e lengthy and c l o s e investigation he made into the detail working of the Department. While it is not desirable at this stage t o make lengthy reference to the report, y e t i n justice to the Department and th^ Stiiff, tlu>re are some sections regarding which mention should be made.

Dealing with Staif matters the Royal Commissioner said— In tho |iapoi"3 that came iinrlcr my (I'lservaticui, inin"itos written in the Works Department are

CO in mend ably brief and t<i tho point, and but i 'cw caspH oi: u n d u e delay were noticed. lilxcept whero financial sti'ingency retards, matters appear to be dealt w i t h promptly and without circuinloeution. Detailed reference w i l l be made to the sevenil Departments, but it may be statod hroatUy that the administration of the Work.^ Department is carried out upon good business Hncii, and t!ic present Under Secretary, though comparatively new to the office, i s to l>e congratulated upon the capable manner in which the Staff appears t o b e c o n t r o i l G d . MeciinK-s Heads of the Hranches are held at regular intervalK at which Stall' matters are discussed, a n d , i f these are not pcnnittcd to develop i n t o purely routine meetings, or on t h e o t h e r hand are not burdened w i t h trivial detail, good sliould result, and t h e y should operate to the maintenance of efficiency.

a n d later made t h e following gratifying statement in commendation of t h e work o f t h e Staff:—

Whi3e r speak as a layman so far a<i technical knowliidge of t h e wnrks and the organisation for the works of the Department are concerned, a n d there are consequential limitations tu tlie wciglit of my opinion on such, nevertheless onglneering works nnd matters have fallen largely within my experience, and I h a v e no hesitation i n saying that T was greatly impres.sed with wliat the Department has done, w h a t is being done, and with tho arrangements therefor. There appears t o bo an excellent (q>irit amongst tlie principal officers in tlir'ir relation w i t h one another and w i t h tlieir respective staffs ; and what is manifestly outstanding is t l ie keen interest shnwn in the w o r k throughout all ranks. A n d i t appears to me that had some of the great imdertaking*, designed and succesifully completed b y officens of the Department, been t h e work of consulting engineers in general practice and of p r i v a t e linns their names woukl liave had" world-wide renown as leaders in their professions and w o r k s . New .South Wales h a s been and is well served b y tlie officers of tho Public Works Department, and I should say their only limit is financial, and certainly not i n abil i tVj capacity, and energy.

The Commissioner intimated further that in his view— Generally tho profe.s.sional officer throughout the J.>epaftment is underpaid, and it should be

a matter of urgency for the nc.v Public Service. IJoanI to deal w i t h tliis niattei-.

It has to be recorded with appreciation tJiat daring tho finaneial year t h o Public Service Board did deal with the salaries of a number of senior ofilcers, and, by t h e operation of tlie Departmental Boird system, various other salari(;s were r e v i e w e d ; but t h e general reclassification provided for under tlie new Act is still a w a i t e d . As a consequence, tho year has been marked by the resignation of s o m e

off icers with many years of valuable kuowledgo and experience, these having accepted more lucrative positions outside the Service.

INADEQUACV OP FINANCIAL PKOVISION y o R WORKS.—During the course of his investigations the Commissioner hod brought under his notice the increasing difficulty t h e Department is experiencing in securing the necessary funds to properly maintain the national a s s e t i n the shape of buildings, bridges, public watering places, and other services throughout tho State. Tho number of these steadily i n c r e a s e s , a n d t h e cost of labour and material shows a tremendous rise i n r e c e n t

years; but, in i n v e r s e ratio, the amount made available towards the carrying out of

necessary works i s less than it was many years ago. Commenting on this aspect o f affairs , so far as public buildings are concerned, the Uoyal Commissioner stated :—

I t cannot be too strongly represented that the starvhig of Repairs and Maintonanco Vote for necessary Public iiuildings is uni'conomieal ; and, while strict s u p e r v i s i o n should be exercised to prevent unnecessary o r premature expenditure upon repairs ami m l intcTiauce, the Depai ' tment should bo provided w i t l i suilicient f u n d s to maintain ihn public buildings in sufhcieutly g o o d order to prevent utuluo depiwiat ion. When i t is remembered that t h e Department l ias the responsibility of maintaining ^74 police buildings; 209 court houses, fifteen country lands offices, with ali the gaols, mental hospitals,

Government

15

Oovernm;Mit asylums, State hostpitals, ami tourist resorts, in arliiition to all the rarioua Govornmonfc liuil(lin:;;s in Sydiir>v, it is nlivious, ovon to ihv lay mind, that a fairly larj^c sum in required, not only t o ffivo Romo meA-tnrf of comf )rt and convenionco to the ofticcra concei-ned, but t<> koop these public pnipiirtics from the rapid doterioratif^n that invaria'dy follows nogligencp or delay in effecting periodical renovations.

RrcLATioNSHiP OF DEPARTMENT TO WATER BOARDS.—Anioiigst o t l i o T mattcrs (loaR witli extons'lvely by tlie Royal Commissioner was the relationship tietwcen the Biiblic Works Department and the Metropalitan Board oT Water Supply and Sewerage. Inter alia, the Commissioner reeommends That the responsibility of keeping tho Minister advised of what is necessary to be done for provision of an adequate water supply in ample time against all needs f o r Sydney and suburbs and for Newcastle and district, be definitely placed—liy statute if necessary—upon tlie Public! Works Department; or failing that, then upon the Metropolitan Board of Water Supply and the Uunter District Water Supply and Sewerage Board rospoctively."

In this regard, however, I should point out that in respect to both Sydney and Newcastle, the reference by the late Minister to the Expert Board made request for recommendation as to the policy for the forthcoming thirty years. I am glad to bo able to report tliat the relationship between the Department and the respective Boards is entirely harmonious, and the Expert Board, already referred to, has dealt with, not only matters which this Department has handled, but, as is elsewhere nu'utioued, with the Sletropolitan Board's proposed system of distribution, at the Board's own rcque.-i.. The relative spheres of aetiou as to the Works Department's responsibility, in relation to the storage, and tho Metropolitan Board's, regarding the distributory svstem, are well defined and recognised.

GENERAL.

In accordance with the practice reverted to last year, the reports of the heads of tiie several branches arc incorporated in full with this Report.

By declaration of the Board of Trade, the standard wag>} was, on Sth October, 1919, increased from £ 3 to £ 3 17s. p e r week, and this increase was naturally I'cfiected in the higher cost of works The prevailing increase in the prices of all commodities at the end of the year has also made it evident that a further increase would be necessary in the near future. Generally rates for labour and material are so unsettled that it is not possible to frame estimates with any degree of confidence that they will be realised.

I cannot conclude this Report without reference to the loss which the Department lias sustained during the year through the deaths and retirements of officers.

Mr. Norman Grant, Supervising Engineer in charge of the Cootamundra distrift at the time, was killed in a motor accident on 5th June last whilst on an ofiicial journey.

Mr. B. J. Smart's death, referred to in another pirt of this Report, occurred shortly after the close of the financial year, taking place on Gtb September, 1920, owing to typhoid.

By retirement tlie Depaitinent lost the scrvlees of Mr. M Jf. Allman, Metropolitan Engineer, and Mr. E. L. Drew, Plrst-class Assistant Architect, t w o olTicers of ripe experience witli long and honorable careers in the employ of the State.

During

16

Under-Secretary.

D E P A R T M E N T .

During the year the Public Service Board approached the Department with a view to securing the services of the Chief Accountant, Mr. John Spenee, for tlie position of a Senior Inspector under the Board. While it was recognised the loss to the Department of so valued an officer would be severe, yet, as it was thought the gain to the Sei'vice generally would be considerable, the Department felt it could do no other than acquiesce. Mr. Milford, an officer of many years standing in the Accounts Branch, now occupies the position of Accountant and Paymaster.

After quoting extracts from the report of the Boyal Commissioner as to the work performed by the members of the staff, I feel that I need only add I have had the full and loyal support of the officers. This I desire to gratefully acknowledge.

17

D E P A R T M E N T O F P U B L I C W O R K S , N E W S O U T H W A L E S .

A. SUMMARY of Expenditure for the Year ended 30th June, 1920.

f Service.

Fj«TIIML»hniP"T SalnrL-B Mtftl* I'ulilio lliiil(tinir« (lovcnimoiit rrintliiif Office,

RETAINT to biilldinK Rniulii ilriil 'us I'litiu, Korrics, anil Ijiunelipn , I'ubllo Wftierinir-plaitH, Dnun

iiKt'i ntiil ttlniitnr xirvluas MiirbinirM hfkI Hhtire Utd)

l)rLilKi' Wonicr J Water anil Drniiiftjio dtui Water

Act Wftier CoiiscrvBiioii, &<•.-—

AEWPRAT'TI t'oiiBiruftioti, (Jiitiiilry TowiiH

Wntt'r Suiiplit-B, (Joimtrj TOWM Motrojiollt!iri —

SrwtTiii:)' instruction W^to^ Sn|i;ilic9

Ilntiter IHxtrict -Hvn'cntk'e Cunstruutlon WntiT Slllililicn

MinnuIlurii'OIIH Si'lu'ihilo ('i>ni|n'nsBL[DnH li IlmUiitie*, &o, K.iiii|imciit, TravtUinit, Ac. .. Kvnt.H, ricttiiinit. anil Dop.irl-

iiicntfti (Ji>ritini{otioio« Itin'r Miimv.v t'mnniiunion Hailwaj Al'iviil IVwvl Kur*u'<'« i>f oiUiT IV'i'Artiiitinta.. To aiulvt ftliiri'M aii<l Mimiripolt-

tlot in cnnatruallTiK I'ulilic \Vork«

Worlm yinilertivkon for NhtrM utiiI MiiiilH|>alilii!4 t i i ideTuoQ. trai-l tur ru|iii) inetit

Clfclni!) ni;ainfll nml work ilotli for other I)f|)arlmL-iitn

ClnliiiH ai^iiiiiHt CoininonweiLUb Mlwftlanumis ScrvipM—

Allownrimi to wiiiiiw of Inic K. Milni', (iiniiorly Dcimty Chk'I lUiiway Coinniisaionur.

H>ilro-Elwtrl<' WurtB

Loans. Piiblio Works Fund. MIsi'clIaneouB. Hpc. Other

Dc}urtment8.

£ 8. d

fi^26S is' 8

8,077 18 2 1 14 2

143,5S2 1 2

2.189 0 4

33,522 16 8 a7,20* 17 2

88.473 14 N 106,715 2 1

Sr.,)>Oil 3 0 68,2*1 10 3

55,357 16 6 "FI.OOO'O" 0

l.fiSl 14 1)

7tri,277 13

£. B. d. 05,ri37 9 2 43,033 IS D

S,13fi 0 0 18,6G!) 1.1 0 39,:i*7 19 C 33,803 12 tt

5.0C5 8 7 2(1,81)3 U 0

123.100 12 0

m 15 5 201 5 7

11 0 0

18,7ii2 8 8 27.40i) 3 11 30,682 17 &

9,858 10 r>

'"705"7"0

2,i;00 0 0

•lH;),iiS2 lu y

£ B. d.

40.5B5"7'il

2.67914 "e 43,(W3 4 1

018 IS 8

5D7 D 4 1,726 13 8

-101 a 3

£ 8.11. 12,440 9 8 5,14!) 1 ft

2,958 S 1

1,870 1 8 24 10 0

114 6 6

7,oaa 0 n

105 4 8

SM,C'J2 13 •2)i.:.00 U 5

£ . d.

71*8 10 11 1,418 3 1

882 1 7

248 3 8 01,003 18 3

33 5 4

87.S«G 9 0

£ B. d.

188,532 13 10 .35,(130 1» 4

224,172 10 2

Total.

£ S. d. 107.977 11 10 106,900 1 0

3,135 9 fi 24,506 10 0 91.527 4 10 35,103 19 10

7.341 19 T 170,109 0 fi 123,100 12 A

2,189 G 4

28,983 15 D 100,005 15 8

8S,fl59 5 3 105,729 2 1 25.000 3 0 88,241 Ifi 3 25,824 3 6 27,400 3 11 30.582 17 8

0,858 Ifl e 55,463 0 2

705 7 0 5.O00 0 0

188,:.32 13 TO 35,030 10 i

2,000 0 0 l.r.&l 14 0

1,03:>,131 11 2

Credit.

£ a. d.

Loans, 49 10 «

4,209 10 11

4,349 10 8

SluMUAIty. £ 8. d. Kxpenditnro 1,035,131 11 2

Lean CieditB—Loans 4,349 10 8

£1.030,782 0 C

STATEMENT of Vohime of Expenditure, &c., for Ten years, 1910-11 to 1919-20 .

Vcar.

Numher >-l Vay

VoiK'ImrB of nil

hcaiirip-tiona.

Expenditure.

Lonna. It 0 venue.

mo-u imi- ia

• i i i i :M4 Kill i.i

+ M)l.-)-16 :I91R-17

lun-i.s iiUM io 191U-20...

54,1'24

!"),:{-,5 ,SO,888 R.FI,200 RI(i,4I6 (10,467

:{s.. ;)i

£ s. d. I,4r.!),3l)l IS 11 '2.;!ii.-),'.)i'2 17 r* •i,lt7S.Hl-2 16 ;i •2,42O,4S0 7 6 2,uri,2m '1 7 •i,SISS,242 16 H 2,227,660 II) 10

(irjr.,.347 a 4 R)2ii.l!)5 5 2 710,928 2 9

£ 8. d. m,rm 7 3 S.S!),li:tI 13 4 77I,7.'iO 13 !) lijS.Kr. (J 0 m&MG 14 10 42S,4')0 9 a 4411,931 13 2 401,.10(1 19 1 40S,307 9 C 489,532 15 9

Public M-orka Fund. Miaoell.aiieoua.

£ B. ,1. 482,0!)8 8 0 523,700 9 4 239,BS7 15 6 155,403 IS .'i 8(3,124 8 10

114,150 9 10 123,028 19 3 74,091) 0 10

110,240 !6 4 88,692 13 5

£ 8. (I. 6,684 18 2

33,586 14 10 10,222 18 1 2,606 1111 8.969 2 9 4,570 4 1

838 17 11 5,150 6 0 9,477 15 11

29,509 9 5

Special Ui'JHJSITS.

Other DuiKirti Hunts. Total. I

£ 8. 26,517 13 13,101 15 32,7.32 16 14,140 S 21.189 13 49,014 13 63,320 18 50,464 6 01,418 3 S7,S9G 9

(1. £ B. d. 4311,085 6 10 437,215 3 0 502,057 7 0 2!I8,420 3 6 233,762 5 11 187,309 3 7

11 I 229,704 11 1 8 ! 244,835 4 3 2 ' 305,784 14 2 0 224,172 10 2

£ 3,102, 4,152 3,635, 3,569, 3,16i; 3.771, 3,085. 1,437, 1,421, 1,630,

fl. d. 284 12 7 .548 13 it 2.30 6 10 287 15 10 931 8 737 16 492 11 200 9 424 4 782 0

• Wfttor Conasrvation and Irrij,'ation OKUrea .mt inclu.k-d afior 1912-13. f Lo,-..! fiovcrnniont not hu-lmU'd o«inK to transfer of Ura.Lch t Hallway Cotistruciion transferred to Kailway Departmciit on iKt January, 1917.

c. LAND 11E. I:MPTIONS AND COSTS.

Head of .Service. Lo*m. I'nlilie Works Fund. lie venue. Special I.iejMisits

Account. Total.

£ 8. d. £ S. d. 21 12 0

£ B. d. £ s. d. £ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i

ItarliduiH and Rivers !>159 fi 8 537 9 3

1,9.58 12 11 13,027 15 5

14 11 4

£ S. d. 21 12 0

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i

!>159 fi 8 537 9 3

1,9.58 12 11 13,027 15 5

14 11 4

866 15 4 102 12 6 19,280 0 0

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i

!>159 fi 8 537 9 3

1,9.58 12 11 13,027 15 5

14 11 4

866 15 4 102 12 6 19,280 0 0

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i

!>159 fi 8 537 9 3

1,9.58 12 11 13,027 15 5

14 11 4

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i I'ulilio Wiiti 'riiig riaces

!>159 fi 8 537 9 3

1,9.58 12 11 13,027 15 5

14 11 4 63 0 0 154 19 6

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i 63 0 0 154 19 6

£ 8. d. 21 12 0

2,1.59 6 8 20,786 17 1

l.O.'iS 12 11 i;i,027 15 .5

14 11 4 209 19 (i

17,697 15 7 943 7 4 2.)7 12 0 19,280 0 0 .38,178 14 11

7;iS7—B

1 8

D,

CONTRACTS.

Braiirh. Contracts. Let.

AmmiTit of Contracts let or in proj-'reM

from lat .July. IDUl, to3lltli Jimc, 1920.

Contracts Untliiished.

Outstiuidinj! Halluces to

30th June, 11)20.

I'lihlid Biuldiiigs

7 30

46-2 2(i

£ B. d. n.'i.OilS 14 7 SG,724 9 !) 12.375 11 3

280,706 0 0 i.7«,81.i 1 0

r..7H!) 0 7

•27 12

1 !)

112 2

£ 8. a. 37,415 13 8 8,977 IS !l 1,897 0 0

32,S6'2 15 2 9S,0(i2 17 11

96 14 11

Total 017 £1,099,508 17 7 163 £2.19,012 19 5

E.

CoMrARATivii Statement of Contracts.

Year. Sumlier of Contrai'ts liililurin;: the jear.

Amount uf Coiitr.ai:ta or in proKFCsa

iluriny; the year.

Nuinlmrof Contraclf imllititilieii on 30th June.

UuUtatiiliiii; l lalnnceK oil Goiilracts on SOthJntif, iluu on coiiiiiletion.

1,516 £ K. (I.

2,015,784 18 11 442 £ H. d.

1,471,578 18 1 1!)0!) 10 2,268 1,806,988 IK 8 760 l,fi-25,25() 19 0

1,037 980,482 15 9 495 1,227,659 16 10 1,524 1,519,052 5 10 .•W2 463,219 7 4

461 693,634 I'i 9 177 308,970 2 11 10!3 14 ma 1,333,038 17 6 239 386,603 13 0

551 1,590,060 5 0 164 476,335 7 6 560 2,430,781 5 9 274 938,935 18 2

1016 17 594 2,586,351 1 9 227 818,602 16 0 5S0 910,092 12 8 206 308,671 11 3

1918-19 52." 1,243,927 .0 6 264 304,989 8 5 1919-20 G17 1,099,508 17 7 m 2.')9,lllli 19 5 G17 1,099,508 17 7

P .

CoMPAUATiVE S t a t e m e n t of W a f j e s .

Waj^es p:iid lo d a i l y - r a t o m e n , e x c l u s i v e of t l ie s a l a r i e s of Officers a n d of D r e d g e S c r v i e o e m p l o y e e s .

Ywir. Amount.

1908-9 1909-10 1910- 11 1911-12 191-2-13 19111-14 III 14 I.". 191.V16 1916-17 1917 18 191 S I'.t

£ B. 303,761 14 291.889 3 399,929 IS

1,027,271 19 ],044,1-28 15 -2

941,111 11 3 758,086 17 11 624,790 17 fi 5lX>,051 0 0 290,077 8 0 297.79.") 14 '2 508,952 13 11

G .

STATEMENT showing amount of Disbursements for Salaries, Equipment, and Travcllinf

1909-10 to 1910-20 .

A l l o w a n c c e ,

I'ermiluplil. TL>mi"jni.ry. Total.

Year. SalftricB. Equipment, Travclllnjr. Salaries. Equipment. TmvfllinL'. Salaries. Equipnient. Travelling.

£ fl. d. * » d. t «, d. £ H. Cl. UHJf! HI 10 (1 7,403 11 11 fiS,f.28 11 0

lu iu - i i a i . . iT-2,iMi:j i:; 11 C..2i\ !J 5 D SI), 010 (i ;i lull 1912 .. IIW.ISS 111 2 r.,263 l(i G 9,153 17 1) U 1,0*0 4 4 iBi«-ioia ., iHii.itafi t * *,2i* n 10 0.587 1:1 7 l(ia,424 15 I!)l;;-Ha4 ., i.s7,irj 11 7 3,2;n ti 3 U,27S 1 7 107,401 :J n 11>U-1HI.-) .. ISii.l-U 10 10 *.a7it .'. C. 7.1!)fl H 1 •210.4S'J U 0 luis-isiit:. •j..-m 7 M i 1(llt,s|4 IS :t iimi-nuT. uy.v.i-ii 5 s 2.IKS0 17 & U,G(12 14 >t ;il.4M 1 11 ](ll7-l9l-t 14:t,!MS 1(> 1 i,u-n !) fl hMt I 0 f,.'i,42t 17 11 ims-iuiD ,. Mli.fi'JS 1!> 11 1,«I4 11 S 7,73i> Hi S r.i,:M)-2 fl IBlD-lfliO .. IO),U',l'J IS 10 1,02!) 10 h 10 0 llfiW.) 10

f. B. (1. Cil.ll 4 1

2.4.''i.'. 12 7 •2,707 11 11 3.18S 8 7 3,4311 1 5 2,IHfi IS 11 l,ir,7 111 II

I>'.I4 lis m 10 ;i

2 1 l,6l<7 1 7

£ s. d. i.Bio ]:j 0

i 3,823 0 0 I 2,203 7 1 ' 3.013 14 S

13 (! 1,700 1(1 G l,;i'iT 18 2

0 7 474 T 4

1,121 10 f. •.'.insi 10

, £ B. fSS.iMO 2 (!.W.SI3 0 . •11. 25 19 lifiO.JlO 1 ;iS4.fi.'.8 VJ :ii!9.(!:M * 320,073 4 Kri7,774 7 ?\r.)„r,i) 14 •202,0111 r. 241,8:>fi fl

£ a. A. r,or.:i 7 1 .s.eo: 2 8,031 8 7.4'li IS 5,061 7 Q.12n 4 4.370 IS 2.7;-il 13 11 2,0S0 in 8 Z.m- 13 1! 3,517 1 II

£ H. 3,104 !,

11,C£6 I.''! 11.4-17 4 13,:-01 7 11,124 IS H.iKMJ 10 a.Tita 10 10 S,01il < 4 COlfi )t 10 S.SRl 13 1

10,liU2 Itt fi

Id H.

COUNTRY TOWNS WATER SUPPUES.

HTATEMENT of (lazetted Works to 30th June, 1 0 2 0 .

Miiniciiialitf. Date Oaiettfld.

Amonnt. Date.

Parioil of BeiviTmeiit

of Debt. Annual

loataliiieut.

Allitiry AiMilional.

ArriiiilRlo,

]S;illina Additional,

Additional. M;ilruiinld J>:itliur8t .

Additioiml

liorry. Additional,

lUaynoy ,, Adilitiunal

lEourko Howral HruwarrinK fail no

Additional..

Cokir „ Additional

Ccndoholin, Additional.

Coonaitible. Ailditi<inal

Cooiiiii. Additional,

t'ootaiiiimdra Adilitional

Con nvii.

'I >(

Adilitiunal

Cowra Atlititionat

l ) f i i i l i ( | M i n . Additirmal,

Ihibbo Adililional

IHnm'og. F(irl>CM .

Adilitioiial

filcn Innca (iindhiirn

,, Addit.inniil

Crafttm a n d South Orsfton (iiindngai

Adilitiitnal

< M i n n o d A h Jlay

Additional]

Hi!ls;rove

£ a. d. ' Years. £ 8 . d. 41,000 0 0 31 Dec, 1S94 1 100 1,482 1) 0 10,030 1 8 21 .Tuly, 1915 1 60 466 18 1

363 2 8 lOMar., 1916 i 50 16 IS 1 997 0 « 1 31 Miir., 1916 50 46 8 2

40,417 13 2 1 .hily, 1X98 100 1,401 10 3 300 0 0 7 April, 1909 50 12 15 10

i3,oor) 0 0 30 Doc, 1901 100 491 19 1 4,040 1-i 3 ONov., 1911) 50 172 10 5 0,000 0 0 31 Dec, 1894 100 216 19 0

rt.'),ooo 0 0 31 Doc, 1S94 100 1,988 16 U 733 l.T 1 2 Feb., 1908 100 29 18 10

1,063 8 2 3 Mar., 1916 25 68 1 6 1,708 17 0 22Sprit..l916 50 79 11 0 2,721 3 8 i'3 May. 1919 50 126 13 5 4,323 0 0 13 Mav, 1902 100 156 0 4

56 10 8 25 April,lyiHi loo 2 6 2 2,921 7 0 28 Ai>Hi,19Hi 2.1 187 0 0 1,220 9 1] 14 Lite, 1917 .50 56 16 » 10,519 15 9 19 Oct., 1904 100 880 7 u

251 0 11 7 Nov., 1906 100 9 1 ft 13,4,38 0 0 31 Dec , 1894 100 485 17 0

872 8 10 29 Sejit.,1909 12Ainil,101S I2.Sei)t.,HI0fi

20 61 7 9 .5,839 12 8

29 Sejit.,1909 12Ainil,101S I2.Sei)t.,HI0fi

r.o 271 16 9 10.285 4

29 Sejit.,1909 12Ainil,101S I2.Sei)t.,HI0fi lOO 371 18 a

1,141 16 0 .30 Sept.,1908 50 48 13 7 819 7 6 11 May, 1910

21 .Inly, 1915 50 34 18 «

15,709 3 8 11 May, 1910 21 .Inly, 1915 50 731 6 4

26.067 11 0 29,Sc-i,t.,1903 100 942 12 0 92 0 0 28 Mar., 1906 100 3 15

751 3 4 16 April,1913 20 52 17 1 1,843 3 3 28 .lulv, 1915 25 117 19 H 7,0.19 5 8 16 April,1901 100 254 10 0

685 16 11 2 Feb., I90G 100 27 19 0 334 5 1 14 Ang., 1912 50 14 5 0 678 14 8 20 April,1916 25 37 U 11

fi,742 8 1 1 .Inly, JS9S 100 248 15 10 2,606 17 ti 4 Apnl,1906 100 106 7 7

805 :i 3 0 Mar., m io 50 30 17 a 17,904 8 0 19 Mar., 1913 50 765 17 9

634 9 0 21 April.1915 50 29 10 8 2,039 7 3 29 June, 1917 50 136 16 7

10,896 0 0 31 l)c(^, mn 100 394 0 0 10,073 8 0 7 Nov., 1906 100 364 5 1 1,946 3 5 .•) April,1911 25 118 1 S 2.491 13 1 IG.Tinio, 1916 25 159 0 11 9,317 17 4 5 Feb., 1908 50 397 5 1

610 4 0 14 April, HKIO 50 26 0 4 409 17 8 18Anj,',,1909 50 28 10 2 )K0 19 0 27A««., 1910 50 12 14 7 769 IS 11 iaSppE.,10i2 .10 41 17 3 997 19 2 29 Oct., 1913 50 42 H 0

2,591 13 '2 2.1niie, 1915 25 166 1 9 279 0 9 2.Tnne, 1916 50 13 0 1 15,520 17 6 5.)an., 1910

24 .Inly, 1912 50 661 14 3

126 0 8 5.)an., 1910

24 .Inly, 1912 25 7 12 11 4,814 8 0 6.lulv, 1917 50 224 2 2

18,468 0 0 31 Doc, 1804 100 667 16 0 200 0 0 8Nov., 1911 20 14 1 5 314 18 0 4 Anj;., 1916 1 327 9 11

15,238 3 4 30.!uiio, 189(1 10', I .551 0 0 6,S42 7 0 29 Sopt., 1911 50 291 14 4 2,062 )i 11 22 .Iiinr, 1917 50 137 17 11

12,.302 l:i 0 5 Muy, 1915 50 575 9 9 7.95.S 7 2 31 Dc.., 1893 100 287 15 » 12,908 11 5 23 F(!l>., 1906 lOO 529 4 5 8,094 8 0 5 0i;t., 1012 30 440 2 1 I,3.'i4 11 4 0 Aug., 1918 TiO 62 M 6

35,522 12 1 IS Oct., 1918 Partially completed. 55,000 0 0 31 Doc, 1S94 lOO 1,988 16 0

1,.570 1) 0 5 April, 1911 5r) 66 19 2 17,203 12 4 1 Nov., 1918 50 800 16 8 84,071 19 0 4 Aug., 1916 50 .3,913 11 4 i 1,000 0 0 2SSopt., 1910 f.0 468 19 5

278 0 1) 24Aii^.,1911 25 16 17 4 405 14 10 15 Mar., 1918 25 29 16 3

14,8S! (1 0 22.hily, 1909 50 C34 8 8 7,691 4 10 31 Doc, 1S93 100 278 2 3 8,337 7 3 25 July, 1906 too .m 9 7 1,040 9 6 11 Dec, 1907 44 12 4

101 IS 9 12 Jan., 1917 25 10 7 4 4,000 0 0 7 Nov., 1906 60 170 10 !»

2 0

H—continued. C O U N T R Y T O W N S W A T E R S U P P L I E S — c o n t i n u e d .

S T A T E M E N T of Gazotted Works to 30th June, lQ-20~continued.

Municipality, Date Gtvzetl ed.

Amount. Date.

Period of Repajnicnt

of Debt. Annua!

Instulmeut.

Jerilderie Additional

Juueo ,, Additional.

Kntoomba Additional.

Kempsey Additional!

Kiama Additional

Lisinore. Additional,

Lithgow. Additional

Mittagoufi, Additional.

Moania , ,, Additional.

Mo83 Vale Moree

,, Additional....

Mudgee A<lditional^

Miirwilhnnljali Additioaal.

Miiswellbrook Additional.

Nowra Additional.

Nyngan Additional,

Orange Additional

Parkea Additional

I'icton Additional

Quirindi,. Singleton

Additional

Tumut .. Wagga Wagga

Additional,

Warren ,. Additional

Wellington Additional

Went worth Wilcannia..

£ 5,428

873 215

84,874 207 585

19,548 1,181 8,762 8,959

19,530 1,IJ04

156 7.073 9,929

10,016 4.806 3,703

12,749 8,026

12,734 2,221 1,820

11,290 443 261

7,600 267

1.3,000 10,940 2,000 2,552

174 441

17,029 1,477 1,439

515 3,385

16,085 •11,.526 •24,6o6

517 20,630

537 1,457

12,592 666

2,555 9,000 1,218

728 32,688 5.574 7.634

18,700 31,906 13,600 8,339 4,308

21,129 328

15,9.'-. 1 35

1,207 18.906 17,357 5,120 1.806

10,238 38,500

3,0fi7 3,910 5,909 1,850

12,001 371

0,000 11,40-t

700 4,000 8,3S0

9 1 1 2 0 9 3 9 6 4 8

10 0 0 0

11 10 6 8 8 9 4 9 0 1 0 0 0 1 4 0

11 7 0 4 9 0 5 0 0 4 8

11 10 0 3 0 0 8 0 8 9 5 0 0 0 0 9 0

10 K 5 6 n 9 6

10 0 0 0 4 8

10 7 0

10 9 0 4

£1,414,781 18 7

31 Deo., 1894 1 7 Mar., 1906 lOu

23 Dec , 1908 25 Cost determined by Act N

9 Nov., 1917 21 Dec , 1919 10 Nov., 1909 14 Sept., 1910 .30 June, 1916 26 Sept., 1919 21 July, 1915 11 Aug., 1916 11 May, 1917 19 Mar., 1901 21 Julv, 1915 31 Dec., 1894 28 Mar., 1906 9 Nov., 1910

30 June, 1896 6 Nov., 1907

15 Mar., 1908 13 July, 1910 22 Sept., 1915 12 Oct., 1910 12 July, 1911 16 Oct., 1912 25 Feb., 1898 28 Feb., 1916

l Ju ly , 1898 2 Dec , 1904

25 Oct., 1912 3 Dec , 1913

17 Nov., 1916 28 Feb., 1919 3iFeb., 1903

27 July, 1910 13 Dec , 1911 28 Jan., 1916 31 Aug., 1 9 1 7 27 Dec, 1 9 1 7 IS July, 1919 18 July, 1919 5 April, 1911

10 May, 1915 18 Aug., 1916

1 Nov., 1918 30 Juno, 1896 2 F e b . , I90G

12 May, 1915 31 Dec, 1906 12 Sept., 1900 3 Mar., 1916

31 Dec, 1894 15June, 1917 20 July, 1910 U Aug., 1910 17 Oct.. 1919 27 April, 1894 .SO June, 1906 30June, 1917

1 Mar., 1918 20 Feb., 1920 15 Feb., 1901 11 April, 190G I I April, 1910 '29 April, 191-1 10 Aug., 1910 24 May, 1911 •28 .Tan., 1914 26 Aug., 1903 31 DfC, 1894 2 l-'ob., liKlO

24 Nov., 1915 21 Aug., 19flO 10 June. 1908 26 April, 1902 2 Feb., 1900 7 June, 1912

10 June, 1916 10 Oct., 1910 31 Dec , 1894 31 DfC, 1894

£ s. d 196 6 3 35 13 2 13 1 4

0. 59, 1915.

50 833 8 8 60 50 7 4 50 407 17 U 50 417 1 * 50 909 3 2 25 64 6 0 50 7 5 9

100 255 15 3 50 462 4 2

100 362 3 G 100 196 2 9 50 167 18 0

100 461 0 0 50 342 4 2 50 542 18 3 50 94 14 6 50 84 14 8 50 481 7 1 20 31 4 6 50 11 2 10

100 274 16 4 25 17 2 S

100 470 0 0 100 ,395 12 2 28 113 4 1 25 16.? 7 8 25 11 3 2 25 28 5 3 28 615 15 10 25 89 12 11 50 61 7 8 2.5 33 0 4 50 1.57 12 4

Partially completed. 100 470 7 2 50 1,147 14 10 50 22 1 5 50 960 7 4 15 48 6 0 15 131 2 5

100 455 7 3 100 27 3 8 50 118 19 0

100 325 8 9 100 44 1 6 50 33 17 U

100 1,182 0 0 50 259 9 9 50 3-25 9 9 50 873 6 6 50 1,485 5 5

100 493 19 2 100 301 n 2 50 200 11 3 50 983 11 5 50 15 5 4

100 576 15 10 100 1 9 4 50 51 9 4 GO 806 0 11 50 761 0 3 50 218 5 10 50 77 0 9

100 370 4 2 100 1,392 3 0 100 126 0 0 25 250 14 4

100 143 10 5 25 112 5 4

100 436 2 10 100 15 3 0 50 255 16 1 50 530 17 9 15 62 19 4

100 144 13 0 100 303 1 2

£52,887 6 3

• Murwillumbth, f 30 ,182 38. bd., made up of two ftroounta—£2i,65C and £11,626 3l. 6il^

21

J. COUNTHY TOW.VS SF.WERAOE ASD HTORMWATER DRAINAGR.

STATEMENT of Gazettctl Works to 30th June, 1920.

lIuiiidiMUil)'. Debt Oazetted. Peri'xl of Annual

Bepaviiieiit of Bepaviiieiit of Kepayri unt Auiuunt. Dnto Debt. InstatmeuU

£ 8. d. Yoars. £ 8. d. 65,414 12 3 14 Nov., 1909 60 2,891 8 11

.126 18 9 3 Jan., 1906 25 19 16 9 49,762 1 1 12 May, 1916 50 2,316 8 8

12 7 5 July, lOlS 60 8 11 1 429 5 3 1 May, 1905 25 26 0 11

S,023 4 7 17 July, 1904 50 128 17 10 13,360 5 5 16 June, 1915 28 801 15 0 1,214 6 15 Dec, 1909 2S 63 14 8 1,623 8 8 16 July, ]i)04 100 68 14 1

]4,4SS 10 4 19 Dec, 26 Sept.,

1919 60 640 8 4 22,040 6 5

19 Dec, 26 Sept., 1905 100 790 19 a

.127 18 S 6 Out., 11 Oct..

1909 100 11 17 o 17,299 2 1

6 Out., 11 Oct.. 1911 RO 093 9 iT

17,449 5 1 .10 April, 1913 00 1199 10 4 16,l$8 4 9 30 June, 1915 50 753 11 4

1,3.15 15 5 1 Dec, 1916 2S 80 3 3 17,5S8 19 9 24 Oct., 1906 100 636 0 4 8,644 7 0 IS Sept., 1912 GO 346 10 6 2,134 11 8 7 May, 1913 00 85 11 5 1,853 11 5 19 Nov., 1913 60 74 n 2

53,170 6 0 6 Jan., 1915 100 2,170 0 4 33S 18 4 IS Feb., 1916 25 21 13 11

5,171 2,264

^ 6 11 June, 21 Jan.,

1920 5,171 2,264 3 4

11 June, 21 Jan., 1914 50 96 10 7

5,196 15 2 9 Feb., 1906 100 187 18 3 881 4 0 21 July. 1909 28 49 17 7

3,986 9 7 19 Aprd, 1911 28 22 > 12 11 2,261 3 n II May, 1917 50 102 5 '.:

47,555 3 8 2! June, 1918 60 2,102 0 6 250 0 0 1 Jan.,

24 Aug., 1907 28 15 0 0

06,010 9 4 1 Jan.,

24 Aug., 1910 100 2,386 17 10 1,216 13 3 19 Sept., 1906 50 56 12 9

31,727 0 9 22 Sept., 1915 60 1,402 7 lU 22S 12 10 1 June, 1917 58 10 3 10

£474,952 13 0 £19,965 18 6

Aliniry Ballina Bathurst

„ Additional Ulaynoy t'asino Caaino S to rmwate r Channel ( 'oniki Fiirbrrt (ioulburn Hay , 22.040

,, Additional Katooriiba

,, Additional i

KcmpKey Lisinoro

,, Additional,

LiLhgow. Additional

Murwillunibaii Narrandera

,, Additional

Orange I'iukoa I'arrninatfcii 'I 'aniworth Wagga

Additional .

Totals.

K .

WATER AND DRAINAGE.

Tho undermentioned Truats hare been constituted in c:innection with tho Bores, t t c , eonalructoJ umler tlio Water and Drainage Act , and the debts have been fixed and gazetted as at 30th June, 1920 : —

Samfc Debt 03 OazctteU. Total

Annual Payment.

Amount of First

Payment. Due Date. Snbecqucnt How

Amount Date.

Total Annual

Payment.

Amount of First

Payment. Due Date. I'a} muni. Pjyuble.

£ 8. £ B. A. £ a. d. £ s. d. Quarterly. 770 ll> 8 27 Sept.. 1911 4B 18 9 34 8 0 mFeh.. 1912 11 9 0 Quarterly.

l,r,18 12 17 Jan., 1912 » 0 8 3 «7 10 2 18Ai>ril.l012 22 12 1 „ ],41lfl IJ II 12 Feb., IDKi 89 1 4 « 0 l(! 0 24 .Itint>, 19|.'( 2 2 5 4 ,. b,M 12 8 10 June, 1010 355 2 4 8» 1& 7 19 Jan., 1911 88 15 7 DlH^olvOll, b,M 12 6 Oct., 1915,

Qnarlerly. H.10 1!) tl 29 July, IBO 27 Nov., 1912

40 1(1 7 .17 7 B 21 Jan., IBM 12 9 2 6 Oct., 1915, Qnarlerly.

4t)4 i ij 29 July, IBO 27 Nov., 1912 27 12 1) 20 14 7 27 May, 1913 li 18 2

Half .yearly. ann n 4 30 Dec, li«J5 29 Sept., 191.-.

2 Nov., li)u;) 4;i 8 10 12 2 9 BO June, I90r. 21 14 6 Half .yearly.

nm 5 10 30 Dec, li«J5 29 Sept., 191.-.

2 Nov., li)u;) o;i 13 3 47 14 n 28 J a n . , 19!« 15 18 4 thwart-; rly.

4,888 14 •i

30 Dec, li«J5 29 Sept., 191.-.

2 Nov., li)u;) 2H1 1 ( 218 5 9 3 Mav. 1010 72 15 3 ,. 4,125 0 0 1 Feb., lUU S*.') 11 8 184 3 9 1 Aut'., 1911 61 T 11 ., 3.i:i9 li) 11 7 Jan., 1914 •J04 10 0 153 12 0 2eMav, 1914 51 4 0 l,MH f. 7 3 May, i;)ll 80 0 0 4 1 1 Aui{., 1911 20 1 4 „ U.'im 0 11 211 Mav. lUlO 369 2 4 27rt 16 9 2S Nov.. 1915 » 2 fl 7 „ 4.2(i9 a 20 July. 19U 251 :i 4 WVi 12 0 29 Jan., 1915 (13 10 10

nan 14 V. 14 Fbli., 1912 862 8 :i 039 C 2 13 Mar., 1912 2i:i •1 1 „ a, 165 10 li 14 Mav. 1913 1B7 17 8 140 18 3 Ifl Oct.. 19i;t 4 0 19 „

3ia 10 1 7 April, 19I.'j IH 12 4 13 19 3 3 Auj;., 1916 4 13 1 i.iSi IS 4 9Jiiiv. 191:l 711 19 4 f.7 14 0 2t June. 1918 19 4 10 ..

nil 13 H 22 Nov., I9U 4. 7 0 U 0 •1 !l Fab., 1912 n f) 9 1)15 2 9 3(1 June, 191f. r.il 5 4 42 4 0 28 0 i ; t , 1915 It 1 4 „ 74(1 4 S U Sopt-, 1012 44 8 7 83 H 2-1 Feb . 191S 11 2 •I

9.-M 7 'I 8 Jan , 191:1 28 .Sept.. 1917

548 4 7 411 3 Tl 24 June, 1913 137 1 'i n,7(;D 0 •A

8 Jan , 191:1 28 .Sept.. 1917 224 8 4 1(JS IS 3 2d Mar., 1918 60 >> 1 „

i.sa-i IS 10 ISOet., 1911 91 7 8 0 3 10 0 1(1 Feb., 1912 Ot5ept..l912 5 June, 1907

22 i'li 11 ,, 1,039 10 r OMar., 1912 64 17 4 48 13 0

1(1 Feb., 1912 Ot5ept..l912 5 June, 1907

16 4 4 ,, 150 0 5 5 Dec.. 1900 18 fl 7 la 14 11

1(1 Feb., 1912 Ot5ept..l912 5 June, 1907 4 11 8 ,.

ii,4;)ri 10 ti 2t Sept.. 1913 6 W 10 4 .'>!0 12 3 IS Dae., 1913 170 4 I ,, 5,r.(>l! 10 9 11 J . in., 1911 327 IS 8 24.''. 17 0 i l Jiilv, 1911 81 19 •2 ,,

7(i0 4 4 14 May, 1913 4 5 5 1 3:i 18 10 5 Atlg., 1913 11 IS 3 ,, 3,111 15 1 e Fab., 39!S IPS 5 4 138 18 11 2iFcb,, 191,1 40 fi 4 ,,

6it\ 8 4 15 Aug., litis 37 6 7 27 19 11 IN Ni>v., 191-1 9 fi 8 1 5 1 IT 0 29 .Mar., 1*17 1 0 6 f S 0 2 29 Nov., lOO: 2 5 10 „

15,4114 12 7 29Kept., litis 922 9 8 (191 17 » 10 Nov.. 19t5 23n 12 h „ 4.'H5 0 0 14 Sept., 1910 253 13 101 0 3 14 Mar.. 19U 04 IJ 5

£115,724 0 3 £6,907 3 5

lUuiarka

Ali|>ou Swamp Drainage Ana Hay .. ,. lii'IdiiKil ., ,, llilt Blfti:k

,. ., Additional Itnmdee .. „ (Uilndera ,. ., Cooroii!io»>rattl Swamp Drainage VWT\ ('iirl Laifiwn DrainaKe thiilnera Draliiatfe Diiranbab Swamp Dralnans Frocmiire ,. „ OlniUtone .. ,. (Jralianistown and ("amp Vale Dniuage . . . . Ilititnn Swamp DrainaK-* JanicH' Oreuk ,. lavender Swamp l.iltli- llroiwlwaler Swamp Drainage Lontli Park DrninaL'o Martin 8wanip Dmlnai,'" Moohall and CiabU'sUreek SwampDralnat'e

.. .. >• Miirwlllumbah Swamp Drainatco MyiKimn .. ,, NulKon'x I'laliiH Draiiias,'e Newrybar Swamp Uraina(te . . . . -North Casino ., Itiilili Dralriajre -Sliark Swamp Draiiiaire Swninpy Cruek ,, -Tvrraiiora bwauip Draloauo -Tmkean „ „ Ulmam .. >

Gazette ISl.

22

Water Supply and Sewerage Branch,

RE POUT for the Year ending 30tli June, 1920, by the Chief Engiiicep, Mr. E. M. (le Burgh, M.Inst.C.E,, includinc^ Kepovts hy tlie Special Board appointed to report on the Augmentation of the "Water Supply of Sydney and the Newcastle and Hunter District; Ueport of the Operations of the Expert Committee on Hydro-electric Development; and Beport on Works in Progress and Operations generally under the Biver Murray Waters Act.

S U M M A l i Y OF C O N T E N T S .

A.—General Report by the Chief Engineer. I. Water Supply and Sewerage—

(a) Water Supply Generally. (b) Sewerage Generally. (c) Legislation. ((?) Supplies Atlministerod by the Department.

1. Broken HiU. 2. Juuec. .•J. Tamworth.

(e) Sydney Water Supply. ( / ) Hunter District Water Supply.

I I . Detail Report— (a) Water Supply—

1. Summary of Expenditure. 2. Works Completed. 3. Works under Construction. 4. Works Proposed.

(b) Sewerage— 1. Summary of Expenditure, 2. Works Completed. 3. Works under Construction. 4. Works Proposed.

B.—Hydro-electric Development. C.—River Murray Waters Act. D.—Staff and Administration.

A.—GENEBAL BEPOBT BY CHIEE ENGINEER.

I. WATER SUPPLY AND SEWERAGE.

I have the honor to submit report of the operations of the Water Supply and Sewerage Branch of the Public Works Department for the year ending 30th June, 19'J0 :—

Water supplies were in operation in sixty-one towns, eon.structed at a cost of approximately ,£1,991,684. Twelve town,s arc. now sewered, while stonnwator cliannela have been constructed in thirteen towna, tlu! total cost of sewern -and Htormwatcr channels amounting to approxirastely £ 4 8 0 , 5 3 3 . I t will be noted that thc.'je figures relating to e.tpeiiditure do not corrofpond with the auiuuntu statt-d i n the report of 1011) ; the amounts now atatcil are taken from tlie Autlitor-Gonerara report of total fxpf-nditure from Loan Votes since the year 1H33 upon Water Supply and Sewerage Works, a n d aro considered to represent correctly the amounts so expended, l u the above statement the Cities of Sydney a n d Newcast le a n d environs are not included.

(a) Water Supply Generally. The rainfall for the year was below the average in practically every division of the State, with the

exception of a few isolated coastal areas. Drought conditions were experienced up till June of the present year, and these eondilioris materially aiieuted the sufficiency of the supply in many towuK. Tho rainfall during the nioiilb of June, however, afforded more or loss general relief. I t i.s intereatiiig to note Uiat notwithstanding heavy downjiour.s in the vicinity of the catchments of several towns .siifiering from t h e efVccta of tho drought—notably Armidale, Lithgow, Orange, and Kandos—tiiese water supplies were unfortunato in obtaining little benefit from such rainfall. Tlie towns wore particularly alfected by the conditions nientiuned are referred to i n detail below. The

2 3

The Arniiflale water supply failed at the beginninf; of September, 1919, and with the exception of a perioil of two wcek^j little or no water was available until June of this year : this is tlip fiifit occasion on which the Annitlalc supply lias in any way approached fuihirc since its inception in ]H98. Tlie C(»bar supply failed for a jjeriod of four months. A t Kandos several storms pa.SRed around the catrhment of tlie existing daui on Kcrdy Creek without affording nppreciabh'increaKe in 1iie storage; at Liihgow tho sUirago in the two reservoirs was depleted f r o m 119,000,000 to 15,000,000 gallons or three weeks' supply ; at Orange the storage in the two reservoirs fell from 1*80,000,000 to 35,000,000 gallons ; Katooniba's storage fell from 35,000,000 to 5,000,000 gal lons; at Parkes the storage in the two dams fell from 106,000,000 to 19,000,000 gallons ; at Taniworth the gravitation supply from Moor Creek storage fell to iS,000,000 gallons, necessitating a return to the o ld drift pumping scheme for maintenance of the supply throughout the year. A t Bourke tlie river level fell below the suction of the punip.s, necessitating Ihe cutting of channels in the river bed and pumping from w a t e r - h u l c s some miles up stream. Apart fi'om tlic towns above referred to, it was necessary to placi* restrictions, more or l e s s severe, upon the supplies at Cootamundra, Glen l imes, Moree, Bathurst, Ooulburn, Mudgee, and otlicr country towns.

In the Newcastle District the Hunter River was very low on several occasions during tho year; this necessitated the cutting of channels in the stream above Walka and the suspension of pumping operations for irrigation o n the Upper Hunter in order that the supply to Newcastle and INlailland districts might be maintained.

The failure of supplies referred to above show.s the necessity for the augmentjition t'f storages on the catchments at present drawn upon, or tlie provision of storages on the new cati;hnicnts, and in the ciiso of most of t h e towns mentioned such additional works have been under consideration for some time. The shortage of water experienced during the year was not due solely to the l o w rainfall, but rather to the increased consumption of water due to the increase in the population served and the increased con­sumption jier capita and tho increased amounts required for railway and industrial pui'po.ses. The ext^^nt of the provision made for the water supply of country towns lias of necessity iM'en l i u u t e d by tho ability of tho towns to meet tho charges in respect of interest on capital cost, sinking ftrnd, maintenance, and working cxpensrs in accordance with the provisions of the Country Towns Water ''^upjily and Sewerage Act. I t is therefore not surprising that tho provision in respect of water supply made many years ago should fail to sullice for present needs in such a period of low rainfall as that now under review. A s statwl above, the augmentation of many supplies has been under consideration, but in regard to such augmentation the iiresent position is, from a financial point of view, most unfavourable. A s compared with pro-war rates and prices, the rate of interest on the capital cost, the rate of wages, and the cost of materials (notably the co.st of irast-iron and ateel pipes a n d niafliinery) h a s greatly incrfased. I t would probably bo correct to state that the cost of works of w a t e r supply has increased from ~)0 per cent, to 100 per cent, as coui])ared with pre-war c o s t s , witli the result t h a t many of t h e country towns ;;re not in a [«>sition to meet the charges due to t h e necessary augmentations of their water s u p p l i e s , together with the dijirges on account of existing works, without imposing rates in cxcchs of the maximum provided in the Country Towns Water Supply and Sewerage .Vet, or charging a rate by measure for water much in excess of what ihe people have been accustomed to regard as reasonable in the past. I t ap|iears inevitable that a readjustment of the public view of the value of an ample and reliable supply of water muHt tnko p l a c o in view of tho greatly increased cost of such works and the fact that such a supply is a primary essential for health and development.

With regard to the provision of works for the collection and treatment of sewage, especially in the caae of the larger towns, much of the above apjiUes with equal force.

{b) Sewerage Generally. Th(> treatment of sewage by the activated sludge process as carried out by the Metropolitan Board of

A\'ater Supply and Seweriigc in Sydney during thi' past twelve months is stated t o sliow a considerable reduction of cost compared with the operations of previous years, this result being chielly due to tlie further treatment of the sludge and the consequent reducti»m in the quantity that has to bo towed in barges to sea.

The quantities of sludge removed and cost of treatment by activated shidge process as reported by t h e Metropolitan Board of Water Supply and Sewerage are as follows :—

Sewage treated. Sludge removed. Treatment, (iallona. Cubic yards. Cost ]ter 1,000 gall.

Penuc. January to June, 1918 82,000,000 6,033 8 3 For the year 1918-19 181,000,000 10,704 T-Sfi

„ 1919-20 531,000,000 23,506 3 82 Tlie costa of treatment given alwve are high compared with the coat of treatment in septic tanks and filters ami that notwithstanding tho facilities for disposal of sludge by towing to s e a whicli exist at Syilncy and do not exist in t h e case of inland towns. The cost of p o w e r in Sydney is also lower than is the case inland and it has not as yet Iwien found advisable to introduce the activated sludgt^ process of treatment in any country town. The development of the process .is, however, carefully watched with a view to its adoption if desirable.

Ventilating Vcntilattwa for sowers, excepting in iho ca.se of the large arterial sewor.s, have been hitherto constructed of sheet iron stiffened with angle iron. Since the price of iron increased attention has been given to a cheaper and more durable form of construclion. The State Monier Pipe Works has, at the suggestion of the Department, designed and manufactured tubes of reinforced concrete which are now used in lieu of the iron \entilators. Although somewhat less sightly than the latter, t h e s e tubes are at present prices cheaper, and when erected, a r e practically indestructible a n d cost nothing for maintenance, whereas the iron tubes required frecjueut painting, and e v e n if properly coated externally, corrosion is s o o n sot up internally by t h e action of tho sewer gasci a n d moisture, necessitating their periodical renewal.

24

Total 525,07.3,000

The Revenue amounted to . . . ... ... £ 71,693 The Working E.\penses to . . . . . . 31,368

Leaving a Credit Balance of ... ... . . . . . . 40,325

towards meeting interest charges and the reduction of the Capital Debt. That tlie balance to credit is smaller than that for tho previous year is due to the lesser consumption of water following on the disturU-d industrial conditions which unfortunately existed at Broken Hil l during a portion of the year under rovicw, also to the increased cost of coal and other items making up the operating costs.

(2.) JL'SEK WATEU SUPPLY.

The following particulars summarise the operation of this v/atcr .'.ujiply for tho twelve months period ending 30tli June , 1920 :—

(gallon-O (^allnnsl Water pumped 10S,y i6 ,500 Water distributed—

Railway Connnlssioners ... . . . . . . 72,660,200 Junee Municipal Council 24,749,025 Other Consumers 124,000

97,533,220

Tlic discrepancy between the quantity of water reeonled as pumped and the quantity distributed is due to a constant diffei-cncc in the metering appliances, which is being afljusted. Tlie lower recoid i.s adopted for co.'»tiog purposes.

The revenue for the period was obtained as follows ;— £ s. d.

RaiUvuy Comuiissioners ... 0,110 16 1 Junee Municijial Council . . . . . . 1,S00 0 0 Other Consumers 5 14 0 ;

The co,st to the Railway Couimissionerd amounted t j 1 9J per 1,000 gallons ,, Municipal Council „ . . . ... 1 5^ per „

From Bethungra water v.as supplied to (gallons)

Railway Commissioners ... ... ... -.- 35,867,500 O t h e r C o n s u m e r s 5 8 0 , 9 ^ 0

36,448,480

Owing to the low rainfall during the period under review many locomotive water supplies on the Southern and South-western Railway System failed, and it became necessary for the Railway Commissioners to draw lieavily on the Junee supply, with the result that for months at a time the pumps hafl to bo run eontiiiously and the delivery was even then at times short of the total requirements. Steps are now being taken to increase tlie delivery capacity of the .system as described ebiewhere.

(3.) TAMWORTU WATER SUPPLY. The administration of these works for the financial year remained with tho Department. The

supply was maintained with dilliculty. Moore Creek storage reservoir failed, necessitating recourse to pumping from the well at Paradise F l a t ; the pumping machinery here was inadequate, and a gas engine had to be installed to operate auxiliary pumps. The supply works in other -respects were satisfactttrily maintained and are in good order. Tlie administration of the supply was nominally transferred to the Tamworth Council as from Ist July, 1920, pending the collection of outstanding rates and the handing over to the Council of certain stores and materials, after which final transfer will tako place and the operations and administration will be in the hands of the Councih

(c) Legislation. The Country Towns Water Supply and Sewerage A c t and Amending Act s were repesled by Parlia­

ment during the year, and tlic provisions of these Acts witli certain amendments were embodied in tho Local GovernnuMit Act assented to nn 22nd Dec'cmber, l i )19. These amendments include ec^rtain provisions with n-gard to ratable lands, the powers of the Councils to levy a rate sulhcient to provide for tho main­tenance, manaj;ement, and paymenn of instalments of capital debt and interest tliereon for works of water nupply, sewerage, &c. The provisions of tbis Act relating to water supply and sewerage are to tako elieet as from 1st September, 19'20.

(d) Supplies Administered by the Department. (1.) BttOKKN HILL WATER SUPPLY,

Tho accounting period for this water supply is the twelve months ending 3 U t Becc-mber. The quantity of water pumped during that period was

From Umbcrumberka 113,995,000 gallons „ Stephen's Creek 411,078,000 „

2 5

{<f) Sydney "Water Supply. In the section bf tliis report, " W o r k s Under Construction," I have dealt with (he works in

progress in connection with the Cordeaux and A v o n reservoirs for the augmentation of the Sydney water supjily.

In my report for the year ending 30th June, 11319,1 detailed under tlie aboveIicading tho proposals «liich 1 had siibndttcd to the IMinist'O- through tho Under-Secretary for the further ar.gmentation of thu supply, refern-d to thu a p p o i n t n i L - n r by thn iliriisUT of the Special Baard of Kxports to inquire into and tiu'idsli t h e fullest possible information with regard to the needs of Sydney anil its environs for the next three decades, and outlined the action taken by the Expert Board up to 30th June, 1919. Appended to the 1919 report was also printed in full my report upon the Sydney water supply generally, dated 26th September, 191S, with diagrams.

In his report on the operations of the Department for the year ending 30tli June, 1919, the Under-Secretjiry also referred to the jzppointmcnt and deliberations of tlie Expert lioard, and to tho reference to that Board by tho Minister of the additional question of the augmentation of the water supply to Newcastle and tliH Hunter l l iver district, such report to deal with the requirements for a similar period as the report upon tho Syihiey water supply—that is to .say, for three decades. Later, tho ({uestion of an etlicicnt water supply for tlie South Coast towns with s|>eci.-il rcfcrcn'^e to tho supply to WoUougong, Port Kend)la and vicinity, was also referred to tho Special Board for consideration and rej»ort.

During the period from 1st July, 1919, to 30th June , 1920, the Board have continued tlieir inquiries into tho (lucstion of the augmentation of tho Sydney water supply, and tho improvements required in the distributory sy.stem, and have also dealt up to a certain stjige with tho requirements of Newcastle and the Hunter disti'ict.

Sumtnarisel brielly, tho result of the Board's deliberations is that a majority of the Board have recomnicuiJed that the Cortleaux reservoir be con.structed to a height of 170 feet f.s.l. above river bed (or r.l. 996) to impound approximately 20,6I0,000*^a?lons at a cost {estimated in June, 1919), of £ 6 7 o , 0 0 0 ; t h a t tho Avon reservoir be constructed to a height of 200 feet f.s.l. alx^ve river bed (r.l. 1,010) to bnpound approximately •13,000,0()0,^.?llons at a cost (estimated in June, 1919,) of £736 ,000 . A n A c t to authoi'ise tho construction of the Avon reservoir accordingly was passed and assented to on 0 t h December, 1919.

With regard to the regulation of the flow of the Nepean River, the Committee have directed j that investigations bo carried cut as to ihe desirableness of constructing tunnels to divert the ilow \ of the Upper Nepean and certain of its tributaries into the Avon reservoir, and in connection with such tunnels tho possible increase of the height and storage capacity of the Avon dam to provide for the sUirago of water from ilio additional catclnnf-'nt to be brought in by sucli tunnels. These investigations are now in lianti, but are not suliicieiitly ncbariced to enable a determination on tho subject to be arrived at. In tho mrantime con.'itructioii work is being carried out at the Avon dam in such a manner as to admit of tho height being increase*! above the 200 feet authorised, should such increase in heiglit bo determined upon.

Assuming that the Cordeaux and A v o n reservoirs be constructed to the heights at present recom­mended by the majority of the Special Board—viz., 170 feet in the case of the Cordeaux and 200 feet in tlie case of the Avon—tlje calcidations prepared at tho request of tho Board by Mr. A . S. French, of tho Water Conservation and Irrigation Commission, professional secretary to the Boartl,acting in conjunction with Mr. II. J. l lenwick, assistant superintending engineer, Metropolitan Water Supply and Sewerage Board, give tlio etKciencica or safe draft of these reservoirs, together with Prospect and Cataract reservoirs JI.S under :— *

Reservoir. Height to (.8.1. Kflicieiicy or Sad: Oratt iii.g.d.

Prospect—completed ... Cataract—completed ... ,., ... Conleaiix—in progress ... Avon—propoat'd

150 170 200

20 0 '2-2-Q

23-0

Say 74-9 75

Compared with otEciences as given in my previous report, as under

Reservoir. Hei-ht to (.8.1. EfUcicncjr or Safe Draft in,;,'.!!.

Prospect—completed ... .. , 14 0 Civtiiraet—cuniploted ... ir,o 190 Cordeaux—in progress ... 160 l-:iO Avon—projioscd '2 "JO

Total G70

NOTE.—Tho terms " efficiency " or " safe draft m.g.d." repre.sent the amount of water in million gallons per day which it is estimated can be drawn from the reservoir during a selected period of low rainfall extending over a number of years similar in amount and duration to an observed period in the past, the niaximuni depletion of the reservoir permitted being a certain pre-determined amount.

The exptinditure recommendetl by the Special Board in respect of the Avon and Cordeaux dams amounts to £1 ,411 ,000 , as compared with an expenditure of £1 ,090 ,000 proposed in my previous report;

t h a t '

26

Department of Public Works, N.S .W. , Sydney, 25th November, 1918.

INTEUIM Report, Special Board appointed to inquire into and report upon the .steps which should be taken to ensure an adequate supply of water for the City of Sydney and its environments.

Sir ,

W c have to report that, in accordance with your instructions to inquire into and report upon the atep.s whicli should ho taken to ensure an adequate supply of water for the City of Sydney andj i t s environs, a meeting of the Board was held at t h e UepartinenD of Public Works on 22nd inst.

Suflicient information was before the Board, in our opinion, as a matter of urgency, to justify the submission of an Interim Report as follows :—

The existing storages at Cataract and Prospect aro not sufficient in capacity to ensure an adequate supply of water for Sydney and its environs being maintained through a period of drought similar to those which have occurred in the past.

The completion of the reservoir now in course of construction a t the Cordeaux, which cannot ho looked for until 1922, will not , even should rains occur to fill it, secure a sufficient supply for the estimated requirements in that year under the circumstances mentioned above.

W e have bad before us the surveys and investigations carried out by the Department of Public Works for a storage reservoir upon the Avon River on the Sydney Water Supply Catchment, which show that a volume of, approxiinatsly, 30,000,000,000 gallons of water (a volume half as great again as the full contents of tho Cataract reservoir) can be unpounded at a cost of £600 ,000 .

Hav ing

that is to say, in adopting the Board's proposals an additional fsfficieney of 8,000,000 gallons a day is J obtained at an estimated additional cost of £ 3 2 1 , 0 0 0 ; but in comparing these figures it must bo borne in ; mind that while the Board have rccunmiended an incniase in the height and capacity of the Cordeaux and • A \ o u dams, they have adopted lower figures as representing the run-off of the streams, and the estimated , unit costs of the w o r k have been increased to meet the increased cost of lal>our and material.

The Special Board have recommended certain works for amplification of the distributory system of the Sydney water supjily (estimated in March, li*19, to cost X2, l((9,370) . These works, whicli ju-ovidc for the amplilication of the whole of tlie distributory system through (he city and suburbs, include a most importiint work, viz., the construction of a pressure-tunnel from Potts Hil l to a ])umping-station at . Waterloo, to take the jjlace of the larger mains now feeding the city from Potts HiU reservoir. This ] tunnel is estimated to cost £1 ,000 ,000 . i

Pending tlie cx)mpletion of the surveys of the suggested tunnels referred to above, for conveying the upper waters of the Nepean into the Avon reservoir, the Special Hoard have not yet entered upon an | investigation of any schemes for the augmentation ot the Sydney water snpjily from other .sources outside | the catchment area of the Nepean and its tributaries, such, for instance, as tlie Warragamba. A s already 1 .stated, on the completion of the Cordeaux and Avon leservoirs to the height now recommended, the figures Hiiopte^ by the Board give an etiiciency or safe draft of 75,000,000 gidlons per day for the system. The Board have fixed the requirements of Sydney and district three decades hence, that is in the year 1948, i at 103,000,000 gallons per day, and it is recognised that whatever augmentation might result from the construction of the tunnels from the Upper Nepciin, and the increase in the capacity of the Avon reservoir (if this bo found desirable), such additional augmentation, taken togtither with the 75,000,000 gallons a day efficiency <.ir safe draft referred to , would not suffice for the ri^quirements of 1948. I t will therefore be necessary, and I believe it to be the intention of the Board, to turn their attention to other , sources of supply, such, for instance, as the Warragamba, which miglit be utilised after the economic , limit of the development of the existing catchment of the Upper Nepean and its tributaries has been reached.

I n addition to the computation of safe draft diagrams, &C., already referred to, Mr. A . S. French, | professional secretary to the Expert Board, has, in conjunction with Mr. H. J . l lenwick, of the Metro­politan Board of Water Sni)ply and Sewerage, establislied and carried on a system of gaugings, both upon.' the Cataract and Nepean catchments, and at other points in the supply system. To assist in this work concrete measuring weirs of a standard sharp-crested Cippoletti type have been constructed on the | Cordeaux and Avon Rivers, adjacent to the respective dam sites, and upon i\w Nepean River near th6.i Bargo-Avon roa(i crossing. New guaging stations have been established upon the Nepean, botli above and,^ below its junction with the Cordeaux, and upon the Cordeaux above its junction with the Nepean, alsoi at several sites upon the Cataract River. Arrangements have been made to record the heights at these weirs and gauging stations at regular intervals ; ttie discharge curves for various heights of gauge have, as far as possible, ijeen computed. Ponding the result of these gaugings over .a series of typical years of high and low rainfall, the calculations as to the behaviour of the storage reservoirs given herein and illustrated by the appended diagrams of safe draft must, in my opinion, be taken as approximations only. On the completion of the Cordeaux and Avon reservoirs, I'ccords of the volumes of water stored^ therein, the draw oflF, spill over, and evaportation will iilford a reliable means of checking the run-oS" from the catchments, the ilow from which is regulated by these storafjes, and these records, taken in] eonjunclion with tlie observations at the new gauging stations, will enable estimates of the efficiency or' -safe draft of these and other storages wnich may be constructed in the future to be based upon much | more accurate data than is now at our disposal.

The interim reports are liere gi\ en in full, together with the minority reports of individual members, by the Special Board, viz.:— '

1. Avon IJam. 2. ^Sydney AVater Supply Works of iJistribution. 3. Conleaux Dam, including minority reports by Messrs. Keele and Small. ) 4 Avon Dam, including minority report by Mr, Keele.

27

Department of Public Works , N . S . W . ,

Sydney, U t h July , 1919.

S e c o n d Interim report of tlie Special B<mrd appointed to inquire into and report upon the steps which shou ld ho taken to entiuro an aile()Uiit4> HUppiy of water f o r the City of Sydney and its environs. Water Distribution proposals—MetropoMtan Ho;iid i>E Water Supply and Sewerage.

Dear Sir,

W e have to report that we have consi<lered the letter of 26th February, 1919, from the Met ropoliUm Bojird of Water Supply and Sewerage, and the list attached thereto, setting out tile work considered necessary by the Board to improve tho distribution and local storage of winter up to the year 1932, which you have referred to us.

The proposals have been the subject of discussion at .several meetings of the Special Board, and additional information lias been furnished by the Metropolitan Board which has enabled the proposiils to be fully investigated. A s a result of our deliberations the following i-esolutions have been passed :—

1. (n) That the proposal of the Metropolitan Board of Water Supply and Sewenige to construct a tunnel from Potts Hill reservoir to a pumping-stiition, at Waterloo with a daily delivering capacity by gravitation of not less than 100,000,000 gallons por ^ay be approved by this Committee and recommended to tho Minister.

(6) That the Committee consider that as the work, even if suificient suitable labour is available, wdl occupy .some four or five years in construction, the preliminary work in connection therewith should be undertaken immediately, and the work jiressed on to completion as rapidly as possible.

2. That the works of distribution propos(.>d by the Metropolitan Board, and submitted in ^chedulf* and plan, ite approved by the Committee in so far as they comply witli the following, and, wlicro they do not comply with the following requiroments, be amended to do so, i.e. :—

(o) All sub-mains to be capable of delivering the maximum daily demand.

(b) Where any district is supplied hy pumping, a local reservoir shall bo provided, containing two days' supply at maximum daily demand for the said district.

(c) Tho rising main convoying such pumped water to a district shall be capable of delivering the maximum daily demand in 16 hours.

(r/) The iJunqiN shall hi; capable or be arranged so as to bo capable of extension to such a capacity as will admit of the maximum daily demand being lifted in 16 hours.

(e) In the ease of gravitation mains feeding districts where no local reservoir c^xisti, such main shall be capable of delivering the maximum daily demand. Where local service

* reservoirs exist containing two days' supply for the district, tlie main shall Ix' capable of d(divering tho maximum daily demand in 2-t hours.

Havirt; regard to the fact tliat the prelimiimry work of opening up ioa.*Js of access, provision of woi-knien's camps and sanitation thereof, and provision and erection of machinery must inevitalily occu )y a considerable time, tliis moie especially having regard to the existing conditions arising out of t le war, we are unanimously of opinion tliat the work of construction of this reservi)ir <m thu Avon sliould bo initiated at tho earliest jHissible moment, and we respectfully recommend that Parliamentary authoi isation for the wtprk be given during the present session of Parliament.

W'e have the honor to be,

Sir,

y o u r obedient Servants,

T. B. COOPER, Uncler-Secretary for Public Works (Chairman).

A . E. C U T L E R , M.Inst .C.E. ,M.I .M.E. , Chief Engineer for Public Works and President of tho

Hunter Dist i ict Water Supply and Seweiage Board.

H. n. D A R E , M.E. , M.Inst.C.E.. Commissioner, Water Conservation and Irrigation Commission.

E. M. DK B U R G I I , M.Inst.C.E., Chief Engineer for Water Supply and Sewerage.

T. W. K E E L E , M.Ins tC .E . , Commissioner, Sydney Harbour Trust.

W. J. M I L L N E R , A.M.Inst .C.E. , President, Metropolitan Board of Water Supply and Sewerage.

J . M. S M A I L , M.Inst.C.E., Engineer-in-Chief, Metropolitan Board of Water Supply and

Sewerage. The Hon. U . T. Bam. , M.L.A.,

Minister for Public Works, Sydney.

2 8

Appendix A.

METROrOLlTAN BOARD OF WATER SUPPLY AND SEWERAGE.

LrsT of Works considered necessary by the Board to improve the Diatributiou and Local Storage o[ Water up to 1932

1. Pressure Tunnel from Potts Hill Reservoirs to Waterloo Pumping-station in place of tho £ existing Trniik Main, which had to be reinforced at dilferent places 1,000,000

2. Waterloo Pumpiug-alatiun to replaeo existing oac at Crown-street l.'JOiOOJ 3. 4S-in. Main Extension to No. 2 2-2,000 4. 4S-in. Pumping Main to Centennial Park 57,000 5. .30-iQ. Pumping Main to W.ivcrley .., ... ... ... ... ' ... ... ... ... 49,S(.iO 6. 24-in. Pumping Main to Randwick ... ... ... ... ... ... ... ... ••• 35,730 7. Pmnping Plant, Pipe Head 4,500 S. Pumps to Bankatowu 4,000 9 36-in., 30-in., and IS-in. Main, Potts Hill to Great Western (Parramatta) road* 100,000

10. Potts Hill to Baiikstown Main 12,000 11 Bankstown to Burwood Maia 42,000 12. Belmore Pumping-at«tioa 30,000 13. 30-in. Main in connection with No. 12 5,500 14. "4-in. Pumping Main, Belmore to Penshurst 34,110 15. 20-in. Trunk Line, I'ymble to Manly (aupersuiled by alternative suhemo) 9S,!J:J0 16. Now Pumping Main, Ryde to Chatawood 84,400 17. Ryde to Pymblo, 30-in, Extension 43,000 18. Additional Reservoir at Centennial Park •• 100,000 19. Third Trunk Main, Pipe Heatl to Potta Hill, included in the amplification scheme 150,000

£2,018,030

Bankstown Reservoir £20,000

ROCKDALE. £

30-in. Main Extension to Catherine-street from end of Contract No. 1234, 2,'250 yards (ordered) 18,900 20-in. Main from Catherine-street and Rocky Point road to Carlton Pumping-station, 1,914 yards 7,6SG

£26,556

Imfkovkhek.

3. That the President of the Board be requested to submit to this Committee a statement showing tho estimated expenditure from year to year required to give effect to the above resohitions.

The major works re(]uired to give effect to the resohitions are shown in Appendix A, and the, estimateif total cost, amounting to £2 ,109 ,370 , together with estimated annual requirements up to 1920,' are shown in Appendix B.

After due considfration, wi; recommend that these works hi! carried out as set forlli therein, and the necessary arrangements made to meet the financial requirements from year to year as shown. Tt may be pointed out that certain of tlio works detailed in Appendix A, tho estimated cost of which is; £ 2 1 9 , 0 1 0 , liave alreiuly been authorised by Parliament. i

A map of Sydney and suburbs, showing the various proposals, is also attached. •

Yours fai-thfullv, T. B. COOPER,

XTnder-Secretary for Public Works (Cliairman).

A . E . C U T L E R , M.Tnst.C.E., M.I .M.E. , Chief Engineer for Public Works and President of the

Hunter District Water Sujiply and Sewerage Board.

H. H . D A R E , M.E. , M . I n s t C . E . , Commissioner, Water Conservation and Irrigation.

E. M. DE B U R G H , M.Inst.C.E., Chief Engineer for Water Supply and Sewerage.

T. W . K E E L E , M.Ins tC .E . , Commissioner, Sydney Harbour Trust.

W . J. M I L L N E R , A.M.Tnst.C.E., President, Metropolitan Board

of Water Supply and Sewerage.

J . M. S M A I L , M.In.st.C.E., Enginoer-in-Chief, Metropolitan Board

of Water Supply and Sewerage To tho Honorable the Minister for Public Works, Sydney.

2 9

Appendix B.

METROPOLITAX J:OARD OF WATER SUPPLY AND SEWERAfiE.

List of Approved Woriis and Proposed Annual, Rate of Expenditure.

Dtwriptlon. 19I9IS0. 1920,'21. l!)-ni22. 1024/25. 1935 26. Ktiti mated

Vo»t. KxcPBB. Deficit.

ProeBnre Tunnel, Potts Iliil to Waterloo Puni])ing'isLution.

72-in. Main •.Hti-in. Main .•fO-in, Main, Pyniple , aO-in. Main, I'arrainatta-road IN-Jii. Miiiti, f'nrraiiiattn-rnad, eecond-hand 20-in. Potta Hill to IJankstowu Pumping

Main, 20-in. Chatswood to Crow's Neat 20-in. Catlierine-atreet, Rockdale 24-in. Bankfitinvn to Burwood „.,. UO-iii. Ry<Ic Village to ('hatawood ]8-in. ('row's Nest to Waters-ro.id I 't-in. Watorn-ro-nl to .Spit-nmd I'J-ni. Wjiit-roaii In Alulille Hmd road 10-in. Prince Albi?rt street to Taroitga Park 10-in. Middle Itead roail to Cro.s.s-stieet ... 10-in. (iordon-road to Monnt-atieet 12-in, Spit-mad to Manly, Mosman sido ... 10-in. Submarine 12-in. ISpit-roatl to Manly, Manly side Maidy Imjirovomonls—

Raising Manly Storage Dam Bantry Rc^erv-oir , Pumping Plant ' 15-in. Section Main 12-in. Pumiiing Main 15-in. Riiservoir to Coudamine-atreot

BankHtown Iteacrvoir Centennial Park Ke.sorvoir Waterloo Pumpiny-station to Centennial Pk.

Do do do Wavorley Do do do Raiulwick

Lowering and extending 4S-in. Main, Ash­field and Mariickvillo to Waterloo,

Waterloo Puinping-station, ineliuiiug Suc­tion Well.

Bolmore do do do :i0-in. Main ti> I'unipitig-station 24-iu, Pumping Main, Bulnioie to Feuehurst

Totala

17.404 42,000

12,000

12,174 7,er.o

21,000

14,000

18,000

15,H

150,014

150,000

1,000

21,000 5;t,4O0

27,960

17,000 1,000

• 5,0(JO

60,000 19,000 Iti.CKlO 12,000

50,000

20,000 5,5iJ0

£

ITO.COO

24,000

22,400 3,000

31,000

10,000 5,000

900 6,8fi4

l.'i.SlO

f (0,000 .'IS.OOO 3 J,000 24.000 11,000

60,000

10,000

18,000

466,244 531,001

£

170,000

48,000

£

170,000

43,000

15,600

17,000

11,000

50,000

10,110

:{27,7!o 218,000

e 170,000

35,410

20.-,4]0

£ 170,000

£ 1,000,000

155,410 4.\0it0 4.1,000 38,000 4,000

12,000

]n,.-;40 7,056

42,000 84,400 9,820 0.270 2,385

1,0S5

7,450 5,.S.54 S,580

35,000 11,000 10,000

900 0.864

15,S40 21,000

137,00(1 57.000 50.000 30,000 22,000

150,000

30.000 5,.500

.^4,110

170,000 2,114,164

Total E.itimatcd Cost £2,114,164 Total Annual Requirements 2,080,982,

27,596 1,000

7,366

8,400

5,620

41,.' 82 8,400

8,400

DilTereneo. £33,182 £33,182

* S«c Page 0.

Appendix A—continued.

Impeovemknts to M a s l y W a t k r Supply. £

Ruining Stomgo Dam 10 feet in height, ineUulins all acceasorica 16,500 ;tOO yanla of I5-iu. Kuction PipcB from Dam to I'umpiiig-atation 900 Now Pumping Plant ami Buildings (Electrical) 8,000 Etoctrie lend from Siib-atution to Pumping-atation 2,000 2,6i0 yards of 12-iii Rising Main to Biintry Reservoir 6,864 l^niry Reservoir, l,.'iOO,000 gallons open Reinforced Concrete 11,000 5,280 yarda of 15-in. Main from IJantry Reservoir to existing Main in Sydney-road and

Condamine-atreet 15,840

£61,104

lilin, Main, ^losman to Manly with lO-in. Submarine from Mosman to Clontarf £22,000

Pymble-Mosman. £

20in. Main, Chatswood to Crow's Nest via Gordon-road for Pymble water 19,540 IS-in. Main, Crow's Nest to Waters-road via Falcqn-street and Military-road (Pymblc water) ... 9,S20 15-in. Main, Watera-road to Spit-road via Military-road (Pymblo water) 6,270 12-in. Main, Spit-roinl to Middle Head road via Military-roati (Pymblc water) 2,3S5 10-in. Main, Middle Head real to CroE.s-itrcet via Bradley's Head road (Pymble water) ... 1,085

£;i9,100

30

Belmore T'umping station riO-in. Main, in connection with Belmore Pumping'Ctation '24-in. T'iiin|)in;j Main. Bt!mor« to Penshurtrt Third Trunk Main, Pipe Head to Potta llUl, inclnded in the AmpUficatton l^chome

LIST of works inohided in A anil I!, fur whi{'h Ministerial approval liaa been roceivetl, '36-in,. 30-in., am] IS-in. Main;*, I'otlw Hill to lircal Weatern (I'arranialta) road... tlmprr>vements to Manly Water Snpply ... Main from Moonian to Manly

ScMMAur.! P.irliamentary sanction received Miuiatcriat oppruvftl received

Total

•-Appendix A, £100,000 ; Appmidin B, £130.000 a difTerence of tAppendix A—Item " Raising iStorage Dam given at £10,500, while in Appendix IJ is given

£35,000—a phis ditFercncc of

Therefore a sum of £4,500 shnuld lio added to tho tot.T.1 of Summary, making the total for the works for which approval haa been given

£ 30,000

5,.if 10 34,111)

150,000

£2IU,niO

£ 100,000 61.104 •.i2,IH)0

£183,104

£ 219,B10 183,104

£403,714

13,000

18,500

£407,214

S Y D N E Y WATER S U P P L Y .

STATIMEXT showing difTeronees butweeii amounts inchuled in Appendix A and Appendix B.

IUTM in Appendix Ji in excess oj those included in A.p}iendix A,

Item. Ai'iieiiiiix A. iJ i f f tTcnce .

Additional Reservoir at Centennial Park Bankstown Eeycrvoir 30-in. Pumping Main to Waverley 24-in. Pumping Main to Ranrlwick Raising Manly Stomgc Dam 72-in. Main Pipe Head to Potts Hill

£ 100,000 20,000 40,,SOI) 3.). 7 31) 16,f.ll0

150,000

£ 137,000 21,000 .'jO,000 36,'*i»n 35,111 HI

155,411)

£ 37,000

1,000 140 27(1

18,500

£02,.320

Itemx ill Appendix B irhirh are ft'tis than tho-U included in Ajipfndix A.

36-in., 30-in.. and 18-in. Main, Potta Hill to Groat Western (ParramattaJ road

12-in. Main Mosman to Manly, with lO.in. Submarine from Mosinan to Clontarf

!l|(!LTeilCC

Jtsm» in Appendix A omitlrd from Appindix B.

Item.! Appendix A. Appcnriiji B„

Pumping Plant Pipe Head Pumps to Bankstown 30iu. Main Extension to Catherino-atreet from end of Contract

No. 12:U, 2,25!) yards Not Difference.

£ 4,500 4.000

18,900

SCMMART.

I'iflcrcnt-e.

27,4nn

£21,301

Tjtal of Appendix B 2,114,104 Total of Appendix A 2,092,860

Excess of B ever 4 £21,304 Department

Appendix C.

SYDNEY W A T E R SUPPLY.

LIST of works included in A and B, for which Parliamentary sanction liaa already been received.

3 1

Annexures.

CORDEAUX DAM.

Akaltsis of voting at mooting of Special Board, S2iid AugUHt, 1019.

Hover and Seconder. Proposal. Kor.

Mr. Koele. Dam, 200 feet high Mr. Keele, Mr. Cutler. (Mr. Smail). Mr, Small. Mr. Dare.

Mr. de Burgh. Mr. Milner

lat Amendment .. Mr. de Burgh. (Mr. Dare),

Dam, 160 feet as now approved by i'arliament.

Mr. dc Burgh. Mr. Daro.

Mr. Keele. Mr. Smail,

Mesfirs, Cutler and Milner did not vote.

2nd Amendment ... Mr, Milner. (Mr. de Burgh).

Withdrawn.

3rd Amendment .. Mr. Small. Lapse 1—no seconder.

4th Amendment ,., Mr, Cutler. (Mr. Milncr).

Mr. Cutler. Mr. Milncr.

Mr. Dare. Mr. de Birgh Mr. Keele. Mr. Smail,

2nd Motion Mr. Cutler. (Mr. Milner).

Ml-. C;iit!er. Mr. Dare. Mr. Milncr.

•Mr. de Burph.

^tr. Keele. Mr. Small

• Mr. do Bur[,'h »t first Intimated his intention to vote imaiiist tho mnfinn, lint i»ft.cr«nrH!idadded to support ii, and tht motion WM then ileclnred carrieil I'V tour vott-s to two. Minorily

DopartmRnt of Public Works, N .S .W. , Sydney, 29th August , 1919.

S Y D N E Y W A T E R S U P P L Y .

THIRD Interim Report of the Speoial Board appointed to inquire iirto and report upon the qacation of Sydney Water Supply—Raising of Cordeaux Dam.

Sir. W e h a v e to report t h a t a t the Fifteenth Meeting of the Special Board, held on 22nd August,

1919, it was decided to recommend tint!, the Corde.iux dam be {constructed to a lieight of 170 feot (river bed level to full supply IHVOI) to impound approximately 20,(110,000,000 gallons uf water at an estimntoii eoBt of £r»7.'),000, as against t h e height originally reennmienrled by t h e Public Works Committee and authorised by Parliament in Sejitemher, 1916, vi?;., 160 fee t ( R . H . L . to F.S.L.) eatimafced to impound 1 5 , 8 5 8 , 0 0 0 , 0 0 0 gallons at a then estimated eo-it of £190 ,000 .

Tlu'increase rccoinniended, therefore, represents 10 feet additional height im the wall with added storage t<t the extent of 4,752,000,000 gallons of water at a further cost of £185 ,000 , of which sum £ 6 0 , 0 0 0 represents the im^reiise in cost of the dam as autlutrised, due to the rise in cost of construction since the origiruil estimate was framed.

In arriving at this decision exhaustive consideration was given to tho question of making the utmost use, with due regard to cost, fif t h e various storages upon the Sydney Water Supply Catchment Area, and tlie Board lias h a d before i t many calculations and diagrams showing t h e behaviour of tlio reservoirs Ijased upon the recent surveys and gaiigings of t h e streams, tho results of which latter have been advanced to the fullest possible extent.

I t will bo noted from the accompanying analysis of the voting on the respective proposals brought forward that a eonsideralde difTereiice of opinion existed as to tim height to which the (lam sh'iuld be constructed, the extremes varying from a minimum of the present intended height of 160 feet to a maximum of 200 feet,

The majority of the (Jonnnittee being in favour of raising the height of tho dam t.o 170 feet, it is now reconmiended that the additional expenditure required for the purpose of carrying the dam to this heiglit be authorised. In view of the fact that the construction of this work is now in progress, it is imperative that such authorisation bo given at the earliest possible date.

Yours faithfullv, T. B. COOPER,

Under-Secretary for Public Works (Chairman).

A. E. C U T L E R , M.Inst .C.E. , M.I .M.E. , Chief Engineer for Public Works and President of the

Hunter District Water Supply and Sewerage Board.

H. H. D A R E . M.E., M.Inst.C.E., Commissioner, Water Conservation and Irrigation Commipsion.

E. M. DK B U B G H , M.Inst .C.E, , Chief I'Ingineer for Water Supply and Sewerage.

W. J. M I L L N E K , A.M.Inst .C.E. , President, Metropolitan Board of Water Supply and Sewerage.

To the Honorable R. X . B A L L , M.L.A., Minister for Public Works, Sydney.

32

Minority Report No. 1.

A T a meeting of the Special Board appointed to inquire into and report upon the question of the Sydney Water Supply on the 22nd August , the following resolution was passed, n a m e l y : —

That the Cordeaux dam be built to 170 feet (K.L. to T .W.L. ) to impound approximately 20,()10,000,COO gallons nt an estimated cost of £075 ,000 , as against the height originally recommended hy the Public Works Committee and authorised by Parliament, namely, 100 feet ( R X . to T.W.L.) estimated to impound 15,858,000,000 gallons at an estimated cost of £ 4 9 0 , 0 0 0 .

A s I voted againf^tthis resolution, I desire now to express my reasons for doing so. W e have now been sitting since 22nd November, 1918—nine months—and, during that time, have made an exhaustive inquiry into the present condition of the Sydney water supply and its future requirements, and particularly into the question of the capabilities of the present Catchment Area, to supply Sydney with water, having due regard to the important questions of rainfall, run-oIT, and evaporation over an extended period of time covering both wet and dry seasons.

W e have thus been able to study tho behaviour of reservoirs of varying storage capacity, under those conditions, even to the limit of impounding the whole of the run-off from their respective catchment areas, and to arrive at the "eincieneies" at various T.W. levels, which de6nite]y settles the important question of the maximum quantity of wates daily available from each tributary within the Catchment Area now supplying Sydney during the longest period of decline in the rainfall, which has extended from the end of the year 1900 to the end of 1918.

In addition to this information we have arrived at the approximate cost of the various reservoirs, so that it has been possible to determine the cost of their ellieiencies per unit of measurement.

W e are, therefore, now in a position to compare the efilciencies and their cost from the present source of supply with tho ofliciencies and cost of the water from any other proposed source of supply.

I have always been of the opinion that, owing to its elevated position, the character of its gathering ground, high rainfall, sparseness of settlement, and purity of its water, the fullest use should b? made of the present Catchment Area before looking elsewdiere for a further supply, and now that I know t h a t its water, even to the utmost limits of exploitation, is also cheaper than that from any other source, I am fully confirmed in that opinion.

I therefore consider that to build a dam to 170 feet to impound only 20,000,000,000 gallons with an efficiency of 13-2 million gallons per day, is not sufficient, in view of the fact that our investigations show that during a period similar to 1890 to 1900 the reservoir would have frequently overflowed, whereas if the dam had been built up to, say, 200 feet to impound 42,170,000,000 gallons, that overflow of water, instead of wasting to the sea, would have been impounded, and there would still have been a surplus during the period mentioned , so that 200 feet even is not the bmit of exploitation.

The investigations show that from 1900 to 1918 the water level in a 200-feet reservoir would have been continuously below the top, and the greater part of the wall would have had no water behind it , and that another year similar to 1918 would have left only a reserve of one year's supply.

The majority of the members of this Board were unfavourably impressed hy this contingency; but to my mind we consider ourselves fortunate in being able to make provision for a daily consumption of 19'G million gallons, after allowing for loss by evaporation at the rate of 3*3 feet in depth per annum from the exposed surface, for such an extremely long period as nineteen years ; and if, as time goes on wo find the period is further extended, we must be content to reduce the rate of etficiency in order to meet it.

I t is enough for me to know that from the year 1890 to 1900 the average rainfall at the head of the Cordeaux River was 72'8 inches per annum, the least fall being 5 0 0 0 inches in 1896, and tho greatest being 104'27 inches in 1890 ; and that the run-olf from that large rainfall would have more than filled a reservoir behind a 200-fcet dam, while providing for the coiisumiition and evaporation alreatiy stated. A s we may reasonably anticipate a recurrence uf .such licavy rainfall, it is our duty, in my opinion, to endeitvour to store as much uf it as we cnn, and that is the reason for my objection to tiie dam being raised only to 170 feet. If this be.not done, we will some day bitterly regret the loss, as I shall presently endeavour to fahow that the water from the present Catchment Area, as compared with that which it is proposed to obtain from tho Warragamba, is, metaphorically .speaking, "worth its weight in g o l d " to the consumer in Sydney.

A t the last meeting of the Committee I submitted two statements comparing the cost of water supplied to Sydney from tho present Catchment Area with a proposed new source, namely, the Warra­gamba River.

One statement show.s the cost of delivering 100,000,000 gallons daily by gravitation from each source, wliilo tho other shows the cost of delivering the same quantity of water from the Catchment AlCfb through pressure tunnels , thus dispensing entirely with pumyiing, compared with the-coat of delivering 100,000,000 gallons daily from tiie Warragamba River to Kydc, and to Crown-street, and lifting it from thence to the higher levels by pumping.

I t will be seen that the "excess c o s t " of the Warragamba water amounts to 0'154d. per thou.saiid gallons delivered in tho tirst case, namely, by gravitation; but, if gravitated and pumped to compare with the water through pres.sure tunnels from the Catchment Area, the " excess cost " of tho Warragamba water at l '245d. per thousand gallons, when supplying at the rate of 100,000,000 gallons per day, would amount £ 1 8 9 , 3 4 3 per annum ; thus representing a capital sum of £3 ,606 ,547 at 5-| per cent., or more than the to total estimated cost of the Warragamba scheme.

Willie looking into the question of cost, it will be interesting to know that the Cataract reservoir at 7,000,000,000 gallons cajiacity, ;i.s recommendet! by the Royal Cemmi.ssion of 1902, and .submitted to the Public Works Committee, would have bad an efilcieiicy of 10,000,000 galloiLs per day, and if the dam had been constructed to provide that storage only, there would have been a loss of £ 1 7 5 , 2 0 0 per annum.

I t was, however, subsequently decided to build the dam to a height of 150 feet T.W.L. equal to a capacity of 21,000,000,000 gallons. I t was predicted that the dam would never be fil led; but from our

investigations

33

Minority Report No. 2.

M E T R O P O L I T A N B O A R D O P W A T E R A N D S E W E R A G E ,

Sydney, N . S . W . , 29th August, 1919.

I would like t<i stat(! my reasons for dissenting to the proposal to fix the height of the Cordeaux dam at 170 feet T . W . L .

1 am of opinion that tho capacity of the present Catchment Area should bo exploited to the fullest extent, ami in view of the behaviour of the Cataract reservoir since its construction, I am also of opinion that a dam 200 feet high s h o u l d 1H' coii.structod, and I am further of opinion that it w o u l d fill in a shorter jKjriod than shown on the mass diagram submitted to the Committee.

The value of the additional stored water between 170 feet T . W . L . and 200 feet T . W . L . is of considerable extent to the distributing authority as compared w i t h interest, etc., on the cost of the additional height.

*7387-C . _____ _ __ Ibis

investigations we now know that, if the dam had been built e v e n .15 feet higher to contain 50,000,000,000 gallons, not only would it have been filled duriog wet seasons sinnlar to those between 1890 to 1900, but a considerable loss of water would have resulted, amounting to something like 46,000,000,000 gallons, after providing for evaporation, and a daily supply to Sydney of 30,000,000 gallons.

The present eflieiency of t h e Cataract reservoir we have a s c T t a i n e d to be 22,000,000 gallons per day. If th(! d a m liad been built to 1-S.")feet U> impound 0,000.000,000 gallons, the efficiency would have bi>en 30,000,(MX) galhuis per d a y . It is clear, therefore, that wo h a v e actually sustained a loss of tS,000,000 ^'allons per day, the money value oi w h i c h , at £ i O per million gallons, amounts to £ 1 1 6 , 8 0 0 jier annum.

The Special Committee at last meeting decided that the Cordeaux dam should be built to a height of I70feet . This would entail a loss of 6,000,000 gallons per day, which I have shown could l>e economically obtained by raising the dam to 200 feet, and a further monetary loss will occur eipial to £ 8 7 , 6 0 0 pec annum. The total ]o.ss, .so far as tho Cataract and Cordeaux a r e concerned, being £ 2 0 4 , 4 0 0 per annum, thus representing a capital sum of £3,893,;J3;J at 5 | per cent.

I think I have suthciently shown in the tabulated statement submitted to the Committee that, notwithstanding tho costly works which would be necessary to impound the water from the present Catchment Area, the " ethciency " of the water jier unit of measurement from that source is cheaper than from the Warnigamba, either as supplied by gravilalion through t l ie existing canal, or at high pressure with the additional cost of pressure tunnels, as compared with the gravitated and punipeti water from the \Varrag«iid)a,

This being s o , 1 am of o p i n i o n that it is our clear duty to recommend to the Minister the impounding of e v e r y g a l l o n of i t t h a t can be safely and economically stored, rather than to construct smaller dams t o impound less water, and so reduce the "efficiency " of the present Catchment Area taken as a whole, in order to show that the water from that source lias been exhausted, atid that it is immediately nece-s-sary to commence the works for olttaining a supply from the Warragamba.

Even if the " efficicMicy " nf the water delivered from t h e higher dams that 1 am advocating on the present Catchment Area, could bo shown to be actually more costly than fmm the Warragamba, the exigencies of the present requirements for Sydney are so imperative that we dare not overlook them.

W h a t is our situatinn to-day? We have a conduit from the Catchment Area to Sydney capable of conveying 150,000,000 gallons daily to Prospect, where a storage of 5,000,000,000 gallons is available. To feed this we have a storage of 21,000,000,000 gallons at Cataract, and the drainage from 350 squai'e miles.

Should we have a serious rlrought. such as occurred during 1901 t o 1904, when—with the exception of a fail of 637 points in October, 1902—no useful rains exceeding 200 points fell during thirty-three months out of a total of thirty-four, we should be confronted with a water famine much more serious than anything we have yet experienced.

This can be better appreciated when we remember that the population served with water in 1902 has now doubled, the figures Ining 500,000 in 1902, and 1,000,000 in 1919.

Certainly there is something to look forward to in the propo.sed Conleaux dam, which more than tlirce years ago was authoriNori by Parliament; but at present, beyond some clearing and the excavation for tho foundations, 1 believe 1 am correct in stating that not one cubic yard of ma.sonry has yet been put into it.

W e know that it took five years to build t h e Cataract d a m , under pressure from serious drought conditionn. H o w can we, therefore, expect a Iwtter advance in the construction of tho Cordeaux dam in these days of shorter hours, slowing down, and labour strikes)

W e should, therefore, press on with the greatest expedition the building, not only of the Cordeaux dam, but also the Avon and the Lupton dams, with the object of exploiting the present Catchment Area to its fullest capacity.

I consider, howf-vcr, that this Board has made a bad start in that direction by recommending that tho Cordc^aux dam bo erected to a height of only 170 feet, for the reasons set forth herein ; but I shall refrain from giving further expression to my views until we have dealt with the other works mentioned.

T. W . K E E L E , M.Inst.C.E.,

Commissioner, Sydney Harbtiur Trust.

This is aho^n by the following figures :—

Annual value of additional stored water by raising dam from 170 feet to 200 feet.

200 feet dam efficiency . . . . . . . . . . . . . . . 16'3 170 feet „ ,, 10-0

6'3 additional. Efficiency—2,299 5 million gallons per year.

Estimated cost of 200 feet dam £ 1 , 1 9 8 , 0 0 0 „ 170 feet „ 673,000

£ 5 2 5 , 0 0 0 for 2,299'5 million gallons per annum.

Annual Charges. Interest on £ 5 2 5 , 0 0 0 , at 5 per cent £ 2 6 , 2 5 0 Working expenses . . . . . . . . . . . . . . . . . . 1,000

£ 2 7 , 2 5 0 The annual charge for 2,299 5 million gallons is £ 2 7 , 2 5 0 or 2'84d. per thousand gallons, the cost

per annum of the additiunal water in the reservoir. A t 1 Id. per thousand the annual value is £105,39.1 15a. Tho total value of additional stored water to the distributing authority at Ih l . p.'r ihousai'd is £1 ,016 ,125 .

I t will therefore be seen that the additional stored water would be a valuable asset.

J. M. S M A I L , M.Inst .C.E. , Engioeer-in-Chief, Metropolitan Board of Water Supt ly and Sewerage.

Public Works Dejtartment, Sydney, N.S .W. ,30tI i September, 1919.

S Y D N E Y W A T E R S U P P L Y .

FOURTH Interim Report of the S|)eeial Board appointed to inr|uire into and report upon the steps which should be taken to ensure an adequate supply of water for tlie City of Sydney an.I its environs :

Proposed Reservoir on the Avon River. Sir,

W e have to report that, in accordance with your instructions to inquire into and report ui on the steps which should be taken to ensure an adequate supply of water for the City of Sydney and its onvirons, a first Intfrim Rejiort was submitted on tlie 25tb Noveml>er, 1918, in which it was rcc i innMciidMl that a .storage restirvoir be constructed upon the Avon River which was estimated to impound approxi­mately 30,000,000,000 galloiiH of water at an ehtima'ed cost of £600 ,000 . This first Interim Re|>ort was unanimously adopted by the Board.

Since the date of the first Inter'in Report mentioned above, the surveys in connection with this proposed reservoir on the Avon River have been completed, as also a series of special investigations int^i the rainfall, run-off from the Ca'chment, and the behaviour or efheieney of the proposed reservoir over a number of years, based on the available records'. Investigations on similar lines have also been carried out with regard to other .streams upon the Sydney Catchment Area with a view lo arriving at the relative cost and efficiency of regulating reservoirs on such streams.

After careful consideration of the result of these investigations we are of opinion that the site selected for the dam upon the Avon River is so favt)urable, in respect of the low cost of the dam comjiared wifh the volume of water to be impounded thereby, that we feel that the construction of a (Um at this place to impound approximately 43,000,000,000 gallons at an estiuiated cost of £ 7 3 6 , 0 0 0 , as indicated by the Chief Engineer for Water Supply and Sewerage, is justified, the height of the dam being estimated at approximately 200 feet above the river bed.

Tlie Civlculations and diagrams, prepared under our instructions, show that on the completion of this reservoir, and aft^r it has been tilled, it would be capable of maintaining a daily supply or efficiency of 25,000,000 gallons during a period of low rainfall similar to that recorded in the years 1904 to 1910 inclusive, and that there would remain in the re-servoir at the end of such a period a volume of water equivalent to a Hupply of 2 5 , 0 0 0 , 0 0 0 gallons per day for ono year. This storage is more economical in respect of the volume of water to be supplied daily during a critical period -such as that referred ro i lmn any other storage whicli we have investigated upon the Sydney Catchment Area, excepting the exist ing Cataract reservoir.

The estimated cost per million gallons of water stored is £ 1 7 . The capital cost per nnllion gallons of daily efficiency during the critical period referred to above is estimated at £29 ,440 , while on a bads of 5J per cent, on the capital expenditure the interest cost per thousand gallons delivered is estimated at l-016d. These figures are based on the gross efficiency of the reservoir, but if its eficct in d<M;reasing the value of Prospect a.s' a storage be taken into account, the net efficiency become-s 23,000,000 gallons per day, the ciipital cost £ 3 2 , 0 0 0 per million gallons of daily efficiency, and the interest charge 1 1 0 4 d. per thousand gallons of water delivered.

W e have no hesitation in recommending the increased expenditure of £ 1 3 6 , 0 0 0 upon tho construction of the reservoir over and above the expenditure of £ 6 0 0 , 0 0 0 recommended in our tirst Interim Report of 25tii .November. 1918, which report was based on the less complete information then available. A resolution to this effect was atlopted at the meeting of the Board held on 26th instant, Mr. J. M. Smail and Mr. T. W. Keele dissenting, they being of opinion that a greater expenditure on the construction of a larger reservoir than that which we recommend woul4 be justified on the Avon.

3 5

Reaertolr. CftjKiclty. Million g&UoDB.

Net Effitieiipy. Uillion giillons per

Prospect—completed Cataract—completed ][[ [[' Cordeaux—in progress Avon—proposod

5,602 21.411 20,610 43,000

200 22-0

Tola! 90,523 74-9 (say 75)

Assuming tlio Conleaux and Avon nwervoirs to be completed and the seasons to be Such as fco jubnit of thorn, tngether with l*i-osiH>et and Cataract, Iwing filled, the net efficiency of tlie system will Huffice for the supply of a total of 75,000,000 gallons per day during a period of low rainfall similar to that which occurred from 1904 to 1910 inclusive, with a reserve in Cataract, Corde&ux, and Avt>n reservoirs a t tho expiration of such period equivalent to one year's supply at the rate of 05,000,000 gtdlons per day. !

Yours faithfully,

T. B. COOPER, Under-Secretary for Public Works (Cliairman).

A . E. C U T L E R , M.Inst.C.E., M.LMech.E. , Chief Engineer, Public Works Department, New­castle, and President of the Hunter District Water Supply and Sewerage Board.

H. H. D A R E , M.E. , M.Inst .C.E. , Commissioner, Water Conservation and Irrigation Committee.

E. M. DE B U R G H , M.Inst.C.E., Chief Engineer for Water Supply and Sewerage.

W . J. M I L L N E R , Assoc.M.Inst.C.E., President, Metropolitan Board of Water Supply and Sewerage,

To the Honorable R. T. BALL, M.L.A., Minister for Public Works, Sydney.

Minority Report.

£7.16,000.

of the MS,'"''** '" "'"' rouuMlon, I .iesire to express my reasons for so doing, for the information

i ,nkin„^t^ '"'r' "f necessity of exploiting t h e existing Cat.,hment Area to its fullest exWnt liefore

> K t ' i s t t ' t i ; ^ r " " ' 'T^I' " ••'•"' -'^-^f' - '^'--i^y I^<^P-1 to the Minister lLt:dr r ::f;:,:-:.;": ^ r ^^ which c ^ e t L B o a r d ' d e c L e d to t ^ o m m e m f

. ...s- a M<ini O i l Liio . ; ivon tlivcr, Uigctticr with the facilities fur very roasonable cost, was considered hy all members of the Board to be suj>erior to all others on the existing Catchment Area, and as the gatliering ground was liO square miles greater than that o f the Cordeaux and 5 miles greater than that of the Cataract, I hoped that this Board woutd have seize<l the opportunity of repairing to some extent what I consider to have been an error of judgment in the case of the CordcJiux dam, by recommending a fairly large storage on tho Avon, to compensiite in some measure for the loss sustained in the foi'iner ea.se.

I was, however, again disjippointed by the action taken by this Board in recommending to the Minister that the Avon dam b(' constructed to a height of : 0 0 feet to impound approximately 43,000,000,000 gallons with an efficiency of 2 5 1 million gallons per day, whereas I a m of o|iinitm tliat a Ht<.)rage of 83,000,000,000 gallons should have been obtained by carrying the dam to a lielght of 250 feet with an efficiency t<» 34*3 million gallons jier day, thereby losing a further storage lieyond what the Cordeaux dam might have provided of 40,000,000,000 gallons, with a further lass in efficiency of 9 1 million gallons (Kir day, making a total loss in storage of 61,560,000,000 gallons, and in efficiency of 15G million gallons per day.

Although a diagram was prepared at mv request to show the behaviour of such a reservoir as I ]iropo.sed on the A v o n , which clearly showed t h a t if the dam had been in existence in 1872 em])ty, tho stomge would have gradually Inien incrca.sed, while supplying Sydney with 3 4 3 million gallons daily, and with loss by evaporation from the water surface at the rate of 3 ft. 3 ins, per annum, until, in the year 1892, the reservoir would have filh'd to overflowing, and it would have been jiractically in that condition year after year until tlw end of the year 1900, when that stt)rage of 83,000,000,000 galhms would have continued to supply Sydney untler the c •nditions above stated until tho present time, when there would remain still one year's restrve supply.

The

fco ro^ri" J^j^'^^'f be approved, the present position with regard to the storages constructed or to bo conBtruct.-d on the Sydney Catchment A r . ^ with the not efficiencies thereof wi lLk^as follows : -

36

The reasons given by members of the Board for not supporting my views in connection witli the storage of water on the exist ing Catchment Area, and particularly on the Avon , so far as discussion has gone, shows that some memhers tlnnk that tho dam might never be tilled, others tinnk that it would not be fdled often enough—that is to say, that there should not be more than six or seven years between tho filling. I t was also thought that the gauging of these streams was not reliable.

These I consider to be all more or less frivolous objections. Wo have at least fairly reliable rainfall observations since 1872, and wo know what the behaviour of the reservoir would have been under the conditions which have already been explained in this report.

To meet ono objection made by a member of the Beard, namely, that the Catchment Area supplying the Avon reservoir, although 5 square miles greater than tho Cataract, was liardly sufficient to warrant an expectation of run-off sufficient to provide so great a storage as 83,000,000,000 gallons. I might .say I consider this objection to have greater weight with me than any of the others ; but I have never ye t been able to get tho members of this Board to consider my proposals as set fortli in tho paper I read before the Iloyal Society on 23rd October, 1917—a copy of which was forwarded to the Minister, and which I understand was referred by him to ihis Board for investigation and report. Tlie Chief Kngineer for Water Supply and Sewerage, however, utterly ignores it in his report, and although I have rejieatedly Jiskwl tho members to bear the subject in nnnd, no serious attention has yet been given to it, otherwise they nnght Iiave discovered how I proposed to lead the surplus water from the Nepean into the Avon reservoir.

W h a t I wished particularly to impress upon the members of this Buartl was tho potentiality of the water to be conserve*! upon the existing Catchment Ai-ea, and that if suflicient water can be stored, to warrant tho expense of constructing tunnels between the various reservoirs, so as to have the connected storages under connuand, the water can bo passed from one to another, and ultimately conveyed to Sydof^y through a pressure tunnel from tlie Cataract reservoir, which would relieve the cost uf pumping in Sydney and release the existing canal of 150,000,000 gallons daily carrying capacity, and make i t available for a gravitation supply in the future, to be obtained by a tunnel from the Wollondil ly Itiver.

Under tiiis propo.sat there would be a tunnel connecting the Lnpton reservoir with tho A v o n reservoir, whicli it will be seen from the attached plan is only 1^ miles long, the difference in level being only 8 feet fall from the former to the latter.

The Catchment Aiea supplying the Lujiton reservoir is just double tliat of the Avon, or 110 square mites, on which the rainfall is quite e(pial to , if not superior to, that on the Avon Tlie run-off would therefore be aproximabely double.

Unfortunately, the facilities for storage ai'o not so good on the Nepean, but i t is evident that if the site for a dam l>o nioved up from Lupton to site higher ui>stream, and the dam be constructed so tliat tho surplus waU;r when the daui is full, instead of wasting to the sea, would pass through a tunnel into the Avon catchment area, it could be stored there in the Avon reservoir, and tho objection of insufficient catchment area for tho Avon would Iw removwl. A s far as I can see, tho dam, if jilaced just below the junction of the Bourke Kiver with the Nepean, and built about IGO feet high, would inqjound about 6,000,000,000 gallons, and if a tunnel about 2 | miles long bo constructed between the reservoirs, the surplus water from the Nepean could be passed into the A v o n reservt.lr.

Even if my high-pressure scheme did not eventuate, the tunnel just menticmed between the two reservoirs, in my opinion, would entirely remove the objection to the raising of the Avon dam to 250 feet, if indeed it does not warrant its being carried up to an even greater height, in view of i ts superior storage facilities, in order to conserve as much as possible of the water from the splendiil catchment of the Nepean Uiver, with its tributaries the Bourke and Litt le rivers, the catchment area of which is over 100 squaro miles.

I am now preparing comparative tables, showing the cost in detail of my proposids, and tho.se of the Chief Engineer for Water Supply and Sewerage, as amended by this Board, which I will submit for the information of tho Minister as soon as they are completed.

22nd October, 1919. T. W . K E E L E , M.In8t.C.E.

3 7

Public

( / ) Newcastle and Hunter District Water Supply.

Tho steps to be taken to augment tlie Newcastle and Hunter District water supply, making recommendations to cover three decades, having been referred to the Special IJoard dealing with the Sydney water supply, the Hoard visited Newcastle, tho works in progress at the Cliiehcster, and the sand-bed area lying to the north of Newcastle ; they also examined a number of witnesses in Newcastle with regard to the water sujiply. The extent of the inquiry and tho time at their disposal has not admitted of tho lioard presenting a final report on this subject, but on IGth January, 1920, the Board submitted an interim report containing their recommendations up to that date, a copy of which is given later.

With regard to the Chichester scheme already authorised by Parliament, and works in connection therewith which are now in progress (the progress made is dealt with elsewhere in this report), the Board unanimously passed the following resolution : —

That tho Chichester River dam at present in course of construction be carried to the capacity and heiglit authorised by Parliament, i.e., to full supply level, 123 feet above river bed level ; and that further storage on the catchment bo obtained as and when necessary by the construction of a tUm higher up the Chichester R iver . ;

and atldcd :

I t was urged by witnesses that the prospects of obtaining eboap water from the sand-beds were so favourable that tests miijht show there was sufficient water avaihible from the sand-beds to warrant the postponement of tlm Cliiclii'ster River scheme. W e have already recommended that these tests be carri.ed out by the Hunter District Water Supply and Sewerage Board, but we do not recommend that the construction of tho Chichester River scheme, as authorised by Parliament, be postponed pending tho completion of these testi . On the contrary, we have unanimously resolved to recommend as follows :—

That tho utmost expedition be exercised in completing the Chichester River scheme as authorised by Parliament, inelu<Ung the increase in the delivery capacity of tho gravitation maia from S,000,0C0 to 12,000,000 gallons per day.

Mr. Henson, the Engineer to the Newcastle and Hunter Dish-iet Roai-d, endorsed the above reeonimendations subject to certain reservations with regard to authority for the estimates and tho proposed modification of the gravitation main.

The Board's retusons for the reeommendations are fully set forth in their report, but with regard to tho gravitation main the following explanation may be added:—

The Chichester scheme, as approved by Parliament in 1916, was then estimated to cost £1 ,049 ,000 , and includcMl a gravitation main calculated t > discharge 8,000,000 gallons per day at Buttai, the di.seharging capacity of the mains fi-om Buttai to Waratah and Newcasth' to l>i> increased. Subsequent to tho authorisation of tho work by Parliament a further investigation of tho route of th(^ pipe-line cairifMl out under the direciion of Mr. A. 10. CJutlei-, Chief I'jngineer, Newcastle, ami President o£ the Hunter District Watei- Supply and Sewerage Board, pointed to the advisableness of fixing the main jioint of delivery at Wiiratah instead of Buttai, the delivery on full discharge to Waratah being estimated at 12,000,000 gallons per day as against 8,000,000 gallons at Buttai. The water required for districts westwards from Waratati will under this proposal bo dealt with by a branch main from Tarro, or vicinity, towards Stony Pinch. Thi-* proposal was adopted by the Department and a fresh estimate of the cost of the whole of the works,—that is to say, the reservoir and gravitation main on tlie amended routi' was nnule during the year, fixing tho cost of the works at approximately £1 ,400 ,000 as against £ 1 , 0 4 9 , 0 0 0 originally authorised. I t is this modification as to the ptiint of delivery of the main with the resulting increased discharge, and the auiemied estimatcj which form the subject of the resolutions of the Special Board quoted above.

The question of a supply of cheap water for industrial purposes is also dealt with by the Special Board in their report referred to above. I t will be seen from the report that it has been ui-ged locally that a supply of clieaj) water can Iw obtained from tho sand-beds to tlie north of Newcastle , and in this regard the i W r d have made the fidlowing recommendation :—

That investigations and tei^ts of the projwsed separate industrial water supply from the sand-beds at Stockton be maiie and left in the hands of the Hunter District Water Supply and Sewerage Board.

Since the presentation of the Board's report, work in connection with the Chichester scheme has b:i?n proceeding along the lines of the Bjard's recommendation, and the Newcastle and Hunter District Board of Water Supply and Sewerage have in hand the preliminary works for making the proposed tests to ascertain the volume of water obtainable from the sand-beds.

Appended hereto is interim report by Special Board upon the Newcastle and Hunter District Water Supply, and minority report by Mr. Henson. _ ^ _

38

SUPPLY OP CHEAP WATER FOE INDUSTRIAL PURPOSES.

In view of the strong representations made by the representatives of the industrial and manufac­turing interests at Newcast le as to the urgency of a clieap supply of water, we gave this matter our immediate attention. Evidence given before us was unanimous ttiat an ample supply of fresh water for manufacturing purposes was an important factor in the development of the district ; and that industrial expan-sion would be greatly aided, and the quantity of water used greatly increased if such a supply were mado available at a reasonable rate. On these points oar opinion concurs with that of the witnesses.

A s to the source from which such a supply can be obtained, the conse!n.-4U» of opinion expressed by the witnesses was that a large volume of water could be obtained by pumping from certain sand-beds situated on the Stockton side oi the river ; that although this water might not ho, suitable for domestic purposes, and on that account couEd not be delivered through the general system of reticulation, it would be of a quality suitable for manuiaeturing purposes. Further, that water from this source could bo obtained in .sufficient quantity, pumped, and delivered through special mains, at a lower cost than water could be delivered from the Chichester River gravitation scheme now in course of con&truction.

The witnesses did not bring before the Board any definite scheme with estimates of the cost of tho works and distributary system and pumping. Mr. Goninan, representing the Chamber of Manufacturers, stated :—

If a bountiful supply of industrial water can be made available at a reasonable cost to the manufacturer, then it is the duty of the- Hunter Piiver Water lioard to give it to us. W e make it as a request that you will carry out an investigation, and if you will not carry out an investigation, we will, and wo will pay for it, but we want from tho Government an undertaking that if we carry out an investigation, and we satisfy them that the water does exist, then we want you to put dowp that plant, and if you gentlemen do nob put down the plant, we will. I am empowered by the big companies to work most in that way ; we will free you from the total amount of your expenditure, realising that we can supply ourselves with water at a very much les s cost than we are gett ing i t from you.

W e are of the opinion in tho absence of tests that the witnesses generally were over-sanguine with regard to the volume of water which could be economically obtained from the sand beds, having regard to the extent of the catchment and the conditions of infiltration of water to the proposed pumping-stations and also as to the cost at which any water available could be lifted and distributed to the various points where it is required.

W e are further of opinion that while possibly a considerable quantity of water might be obtained from this source and delivered to industrial concerns more immediately a d j a c n t to the sand-beds, the conveyance of such water to the more remote industrial concerns would involve a very large expenditure, and we fail to see how preferential treatment in this regard could be given to one or more industries to the advantage of those more remotely situated.

Tt

Public Works Department, Sydney, N.S.'S^., 16th January, 1920.

N E W C A S T L E A N D H U N T E R R I V E R D I S T R I C T W A T E R S U P P L Y .

NasvcASTLB and Hunter River District Water Supply Generally, and Proposed Supply of Cheaper Wate"" for Industrial and Manufacturing purposes : Interim Report by Special Board.

Sir, The time which has elapsed since our instructions to report on the Newcastle water sujiply

with a view to making recommendations aa to the steps that should be taken to ensure a supply for the next thirty years lias not been sufficient to enable us to make a recommendation ofi the subject generally. W e have, however, carrieil our iuvestigatiooa to a stage which necessitaU?s the submission of an interim report on tho subject.

The reference to us with regard to the Newcastle and Hunter River District water supply may be divided into two sections :—-The first, the provision to be made for water supply generally for the n*'xt thirty years ; and secondly, to inquire into the representations which have heen made to you by represen­tatives of the Chamber of Commerce, the Chamber of Manufactures, and the principal industrial cnncerns at Newcastle, as to the n e c ^ i t y for supplying a cheaper water for industrial purposes as distinct f iom or iu, addition to the geaei-al and domestic water supply of ttie district.

In considering this matter we have had the advantage ()f tho assistance of Mr. J. B. I l e imm, the engineer to the Newcastle and Hunter District Water Supply and Sewerage Boai-d, who is associated with our Board for the purpo.'ie of this inquiry. W e have held eight meetings, we have examined thirteen witnesses as detailed in Appendix, including representatives of the Broken Hil l Proprietary Company Limited, John Lysaght and Hons Proprietary Limited, the Austral Nail Company, the British-Australian Oil Company, and the Australian Coking and By-product Company. We have visited the works in progress in connection with the Chichcitrr River gravitation scheme already sanctioned by Parliament, and various localities lying to the nortli of Newcastle on the Stockton side of the Hunter River, from which it has been suggested by the representatives of the manufacturing interests that a supply of cheap water might be obtained.

3 9

CHICHESTER RIVKR GRAVITATION SCHEME.

This scheme was passed by the Public Works Committee on 28th February, 191G, and was authorised by Parliament Act , No. 20 of 1916. A s passed, the works (including an additional reservoir at Wiiratah ami additions Ut the Newcastle reservoir), were estimated to cost £1 ,049 ,000 , and the gravitation main was designed to supply 8,000,000 gallons per day to the Newcastle district. The additional re.-iervoir at Waratah and the adilitiims to Newi»st le reservoir have been constructed by the Hunter District Water Supply and Sewerage Board and brought into use.

In view of the rise in tho rate of wages, and the price of material, it is now estimated by the Constructing Authority that the works wi l l cost approximately £ 1 , 4 0 0 , 0 0 0 , but included in this incr6a3od estimate is an increase in the length of the ^Fa^itation matn^ and such alteration in p) ints of delivery and gradient as will admit of delivery of 12,000,000 gallons per day instead of the 8,000,000 gallons per day originally proposed. I t will therefore b© seen thaft although the estimated cost of the scheme is increased by some per cent., the volume of water to be delivered is increased by a like amount.

A t the t i m e the Chichester scheme was designed, the information as to rainfall and run-oft from the catchment area at the disposal of the engineers w a s , in the absence of proper gauging stations, very meagre ; and the Chichester dam as designed to imponnd 5,00(t,000,000 gallons of water w a s estimated to Im* a'Uply sutfieient to give a regulated supply of 8,000,000 gallons por day called for at that time. Since tlie scheme w a s authorised much more complet.e data have heen mafle available, and calculations prepared under instructions from th i s Bmrd covering the d r y peri(xl of 1904-1906 show that the river as regulated by the authorised storage would supply a volwaw- up to 20,000,000 gallons per day.

The Board have had under coiisidaratiioii the <iuefltions of the advisableness of increasing the height of t h e <lam now authorisi'd a n d in cOinrse of construction, but the site is not favoural)le to such an i n c r a L s e ; a n d , further, a supplem^Mitary site fcr a reservoir higher up the Chichester River, above the junction of the Wangat, hns b-en surveyed, which affords good facilities for additional storage when requiretl. This being so, the Hoanl considW? that id woiikJ be unwise to increa.se the c a p i t a l expenditure on the Chichester scheme by raising Che diaiw and irjcreasing the capacity of the reservoir as anthorised, and that its present c a p a c i t y an proposed by the Constructing Autbority and authorised bv Parliament i s proper and sutHcient for the s i i e ; ahso that further expenditure in respect of tho storage may properly ho deferred until the regulating capacity oi this reservoir is exhausted by the growing consumption of the Newcastle and Hunter district.

The Board have therefore unanimously imismmI the following resolution :—

That tho Chichester River dam at present in course of construction be carried to the capacity a n d height authori.sel by Parliament, i.e., to full supply level, 123 ftvt above rivi'r IKVI level, a n d t h a t further storage on the catchment lie obtained as and when necessary by the construction of a dam higher up t h e Cliiehester River.

It

I t must l>e borne in mind also that an ample and reliable supply of water for domestic purposes is of equal imjiortance to the supply of water for industrial purposes, and if tlie two matters be treated Heparately and preferential treatment be accorded the users of the water for industrial purposes, a financial burden will bo thrown on the general and domestic consumers to the advantage of the industrial undertakings, which the former will be unable to bear.

With regard to the statement by the representative of the Chamber of Manufactures that if the Newcastle and Hunter District Board are not prepared to supply water from the Stockton sand-lxnls, those interested will do so themselves with a view to supplying themselves with a cheaper water than can be delivered by the Board, we have to draw attention to the concluding paragraph of the report of tiie Parliamentary Standing Committee on Public Works, dated 28th February, 1916, on the Chichester scheme, in which, in reference to this question, the Committee used the following words :— i

In concluding their report the Committee desire to suggest that whatever steps are necessary should lie taken to (irotect tho revenm^ of the Hunter District Water Supply and Sewerage Board in respect of the use of water from sources other than those connected with the Chichester River scheme.

While , therefore, we are of opinion that the question of the volume of water obtainable from the Stockton sand-beds and the cost of raising and distributing such water should be investigated, we are also of opinion that such investigation should be carriwi out by the Hunter District Water Supply and Sew<u-age Board. On the result of this investigation a determination can be come to as to whether or not the scheme should be developed b y the Hunter District Board as an auxiliary to the Chichester scheme. W e further emphatically hold the view that under no circumstances should the exploitation of these areas by individual manufacturers, or a group of manufacturers, with a view to their installing a separate .schiMne of water supply within the area under the jurisdiction of the Board, be permitted, and we accordingly submit the following recommendation :—

That investigations and tests of tho proposed separate industrial water supply from the sand l>od8 at Stockton be made and left in the hands of the Hunter District Water Supply and Sewerage Board.

4 0

Minority Report.

I ENDORSE tlio above report, subject to tho reservations (a) and ( 6 ) : — (a) That the constructing authority is solely responsible for the estimate of costbtated a t XI ,400 ,000 . (6) That as I became associated with tlio Special Committee after tlie mo<Iified scheme for the pipe

line from Chichester had been explained to and accepted by the Committee, I am not, at this stage, in a position to expreas an opinion in regard to such proposals,

J. B. H E N S O N , Assoc.M.Inst.C.E., Engineer, Hunter District Water Supply and Sewerage Board.

To the Honorable R. T. Ball, M.L.A. , Minister for Public Works, Sydney.

Appendix.

LIST OF W I T N E S S E S E X A M I N E D .

Mr. Baker Broken Hill Trrprirtary Co., Ltd. Mr. Charnley Australian Cooking and By-prodacta Company. Dr. Diok Stockton Mental Hospital. Mr. n. A. Evans Sulphide Corporation Limited. (By l e t ter ) Mr. A, Gardiner Civil Kngineer. Mr. A. Goninan Chamber of Mdnufaoturea. Mr. n. C. Langwill Chamber ot Commerce. Mr. A. G. Lyon Britiah-Australian Oil Company, Limited. Mr. McDcugall Au8tral Nail Company. Mr. D . N . Morison Chamher of Manufactures. Colonel Tftton „ Chamber of Commerce. Mr. P . W . Russell Chamber of Manufacturei!. Mr. Tvaer Lyaaglit and Sons Proprietary, Limited.

11.

I t was urged b j witnesses tliat tlie prospects of obtaiidug cheap water from the sand-beds were so favourable that tests miglit show there was suilicient water available from the sand-beds to warrant tho postponement of tlie Cliichester River scheme. W e have already recommended that thi^se tests be carried out by the Hunter District Water Supply and Sewerage Roaixl, but we do not recommend that the construction of the Chichester River scheme us authorised by Parliament be postponed pending the completion of these todts. On the contrary, we have unanimously resolved to recounnend as follows:—•

That th'i utmo'st erpedition be exercised in completing the Chichester River scheme as authorised hy Parliament, including the increase in tlu; deliverir-g capacity of tho gravitation main from 8,000,000 to 12,000,000 gallons ])er day.

Yours faithfully,

T. B. COOPKR, Under-Secretary for Public Works (Chairman).

A . E. C U T L E R , M.Ins tC .E . , M.I .Mech.E. , Chief Engineer, Public W o i k s Department, Newcastle, and President of the Hunter District Water Supply and Sewerage lioard.

H, 11. D A R E , M.E. , M.Inst .C.E. , Commissioner, Water Conservation and Irrigation Coinmiision.

E. M. DR n U R G H , M.Ins tC .E . , Chief Engineer for Water Supply and Sewerage.

T. W. K E E L E , M.Inst.C.E., Commissioner, Sydney Harbour Trust.

W. J. M I L L N E R , Assoc.M.Inst.C.E., j President, Metropolitan Board of Water Supply and Sewerage. '

J. M. S M A I L , M.Inst.C.E., \ Enginecr-in-Chief, Metropolitan Board of Water Supply and Sewerago-I

To the Honor..ble U. T. Ball, M.L.A. , 5 Minister for Public works, Sydney. _ '

41

I I ,—DETAIL J l E r o n r .

(a) Water Supply. 1. SUMM.VUY OF KxPBSDITUUK,

A nummary of oxpcnditui'o for tlie year upon works of water supply is as follows:— Sydney Water Supply . . . . . . . . . . . . £ 1 9 3 , 7 1 5 Hunt<u- District Water Supply . . . Country Towns Water Supply

6S,93-1 37,429

Total £ 3 0 2 , 0 7 8

2. WoilKS Coill'LETED.

(fl) Sydmi/ Water Supply. Nepean Jiivcr Weirs.—In furtherance of tlio scheme fur providing compensation water in the Nepean

River, thr.e additiond concrete retardiuLt weirs havrt been c malructoJ on the p)rtion of the river betwoeii tli-( existing C ibhity and .\Ienin'.^le wcir.i. Tais c.:m[»lete-! the sy-stem of weirs to be built between Urownl.iw'rt l l d l anil Alenangle, makin;; eight in all, and givcH a contin:ious series of pools iti the river frum Alenanglo railway liridge to Rrowid()w'.4 Hill. The three weirs just on ip le ted , together with tho raising of the (.'aniden weii- one a<lditional f o o t in heiglit, were carried out by contract at a cost ot apjiroximiitcly £ 8 , iOO. Upon completion of the ciuitract maintenance period these weirs will be transferred to the control of tlie Motro])olitan Water Su]>ply and Sewerage HoarJ as has been done in tlie case of thoio previously constructed.

(e) Country Toivita Water Supply. Jetiolan Caves Water «Sup;j.'^,—Exceptionally heavy rains caused washaways on the adjoining hills

to fill both existing storagi^ diims ol' the wat^;r sujiply with gravel and debris ami cut otV the water supply to the Cavt's House. In order to ensure a more certain sujiply, a circular reinforced concrete tank with a capacity of 40,000 gallons has heen built above the Caves House from which the water will gravitate. A pump has been installed at tho Devil's Coach House and water is now pumped from the underground river through a rising main into the tank referred to. Tlie scheme has been completed at a cost of £ 1 , 0 7 9 ,

Vordaiul Water Supply.—An earthen dam with concrete core wall acro-<8 Back Creek, forming a storage reservoir estimaU'd to impound 1U,000.000 gallons, for t l iR Portland water supply was completed during the year and transferred to tho control of the Blaxland Shire Council, the total cost of tho work being £H,'J33.

3. WOHKS UnDRK CONSTHLCTION. (a) Sydney Water Supply.

Cordeaux Dam —Proj;ress has been made in the construction of Cordeaux dam. The excavations for the foundations have been jiroceeded with and a total of 07,000 cubic yartis of rcK-k and 15,000 cubic yards of soil have befii removed. In addition the cut oil'trench has been excavated in the lower portion of the liam site,

The quarry has l>ee'i furtlier ojH-neil o u t and the c|unllly of the stone shown to be very much improved, enabling largo blocks from 10 to 15 tons to be (juarried, wldch is now being done with tho ai.i of two 15-ton loco, cranes. Four thousand odd cubic yards of such blocks, roughly squared, have been quarried and are ready for use in the dam.

The work of building the dam was conitueiice<l with such current as wa'^ available from the flmall electric plant at Port Koinbla power-house. New units have at length arrived which will ensure an amplo supply of current, the dtday in installing of which at the Port ivembia station was due to the machinery ordered U'lng twice commandoored by the British (Jovernment. Unt i l tliis machinery is installed progress at tlie works cannot proceed at the full capacity of the plant provided.

Periodical tests of the sandstone whieh is being quarried for the construction of the dam are carried out by the Testing Branch of the Department. B y this means tho inclusion of material from any tnfeiior IHVIS of stone that occur is avoided.

Sandstone cubes G in. x 6 in. x G in. are prop trod with the bedding faces truly ground, and are tested in compression on their natural bads. T in following is a record tvpioal of such tests carried out in August , 1 9 1 9 : —

Sandstone Blocks. , No. Mftrlc. Comprcwivc Stronffth

ToiiB per iquiire loot. Wciirht per cubii: foi.t.

tb.

I 1 BB 280 144-24 2 1 TB 310 140-52 R 2 'IB 260 134 51} 4 2 TB 276 134-4S J5 3 TB 308 142-80 ({ 4 BB MOO 144 00 7 4 BB 372 143-84 8 fiTB 196 i:<3(iO 0 5 B B 208 137-44

10 0 TB 344 130-30 11 6 TB •400 141 68 12 3 BB •tl28 142-16 13 7 BB 220 137-28 14 7 TB 180 137-20

6, 11. and 12 Mean (omitting 0, 11, and 12) 268.5. Mean (omitting 12) = 288-72.

'Not crushed at 400 tons per ajuare foot. tTeited across the grain.

Mean, i;;9'94.

At

4 2

A t the time of the construction of Cataract clam similar tests upon sandstone cubes 6 in. x 6 in. X 6 in. carried out at the Univers i ty showed an average crushing strength of 276*3 tons per square foot,

a result comparable with the recent tests of Cordeaux stone referred to.

I t is intended that eorresjwnding tests of concrete cubes should proceed concurrently with the construction of the dam, and arrangements have been made accordingly.

Before commencing building operations the bed of the river was completely strip|>ed, and an examination was made of the bottom by means of shafts and preliminary bores with the diamond drill. This examination disclosed the existence in the sandstone of small layers of water-bearing strata, and in order to guard against upwaid pressure of the water winch nnght occur after the couq)letion of tho dam and filling of the re>'ervoir, it was dcternnned t h a t the foundations shouht be s y s t i n i H t i c a l l y treat<'d by the injection of cement into the joints. Briefly, the operations entailed were sinking a grid of btires over the area in the river channel it was desired to treat and nonng meanwhile tho nature of the substrata of rock encountered, and t h e How of water issuing, at varying depths ; grouting the s<'ams behtw tlie bored area by forcing cement into the bore-holes under pressure ; and, finallv, sinking a grid of bores inter­spaced betwwn the original rows. These latter bores will be left ungrouted, and will be connected to pijies carried up as tlie dam ia built. They will thus serve the purpose both uf furnishing firains to t h e foundations and of providing a continuous record of the di-stribution of hydraulic pre!*?ure on the base of

•• . . . ^^

•I.

pro[)or(.inn of water being found to be 7 or 8 gallons jier bag of 12-^ lb. About 7'»0 bags of cement were used ill tho w h o l e operations. Grouting tho foundation w a s completed at the end of March.

For the placing of the dimension «tone t w o 15-toa derrick cranes have b e e n erected, and aljout 3,000 yards of Cyclopean masonry has since been placed in pasition. Two additional derrick cranes of leaser capacity a r e under order. As stated, sutheient current for all purposes ia not j'et availabh^ from Pt)rt Kembla power-starion.

The numl>er of employees at the present time is approximately 200. Accommodation has liern provided for an ndditioTial fifty men during the year, and further cottages have been erected for the staff. A recreation hall has also been provided, and is in use, during the day-time, as a school for the children.

The clearing of the storage area is in progress, and 145 acres have been cleared to date. About 2 miles of the road of access have been reformed, ballasted, and metalled, and spoil from the quarries is being utilised to form a road about 30 chains in length for access to the dam site after its completion.

The expenditure for the year was £70 ,157 , making a total of £ 2 8 0 , 3 4 2 to date.

Mr. G. C. Clift, Supervising Engineer, is in local charge of the work of construction, assisted b y Messrs. H. P. Ironside and G. A. Whikfeld.

Avon Ztom—Preliminary works in connection with the c >nstruction of the Avon River dam have been pushed on rapidly during t h e pa^t twelve mnntUs.

A road of aeei'ss from West Bargo railway stjition is now nearing completion. Tlds road, whii h is about 6, m les long, is to serve for t h e h-<ulago of the large quiiiitities of material re^iuircd foi' tlie constructiim of the dam, a n d for access after tite completion <iE t h e work. For some 4 miles the ro»Kl tra?er!*es extremely rugged country, necessitating heavy rock w;»rk in its coniitruetion. The .surface formation for tlie full length of t h e road has heen completed and covered with hand-packed balla.'it. The first ih mifc* lias also received the first co:it o f metalling. Tiie surfacing coat w>ll bo a p p l i e d in blue-nie'al to be obtaitied from the quarry being openet! up in thi^ vicinity of Ycrrinbool, al>out 8 miles from the road of access.

A railway siding and depot have been constructed at West Bargo snd a low-level tvadH r bridge has been built over the Nepean River.

Preliminary works at the site of the dara itself were put in hand in January, 1920, since when the following progress has been made : —

A fcemrorary towns)np «;is laid out adjacewt to the works. Streets have been formed, metalh'd, keibed and guttered thnwugho'it, .and arrangements bave been m a d ' f o r the sardtary treatment of the draiti;ige from t h e re.sid"ii(ial area. A n ollii-c and stall" quartcr-i h.ave al.so been completed. Two compk?:t<' units of b a T a c k s affording hous'iig accommodation Urr 114 »M>n have been built and t w o additional unit--are in c airs - of construction. A number of resi'tences have l)ei'n erected by married workmen for them selves and their families on allotments providwl in the township area, and several business premises h a v f been erected and a r e supplying t h e wants of the employees.

E''ctric current reijuired for the operitioti of 1 lie machinery will ho brought to the dam by a cotdinuati'in of the tnuismihslou line alrpAdv constructed from Port Kembla as far as Cordeaux dam. 'I'ho work ul clearing the route for this line (fi\ tuiles in l-ngth, 88 fiet wide) has been cunpleted. All transmission poleq have been obtiunei andl prepared and erection of the line will shortly bc! commenced. A telephone line between W e s t Bargo and the Av(m dam has been completed.

A diversion dam and diver.sion channels are now in progress and will .soon permit of the river being diverted and a start being made upon ihe excavation of the foundation.s for the dam.

Plans have also '•eeu pfe]iai*ed for the plant lav-out, tenders have been called for cablewaya, c ncrete mixers, stone crushers, tranes, and other plant. I n the meantiaie the w o r k of preparing platforms for cauleway towers imd foundations for other plant .and buildings is proceeding.

The expenditure for the y. ar was £ > 0 S 983, making a total of £ 1 2 0 , 3 7 3 to date.

The large percentage o'' returned soldiers among tho workmen emp'oyed on the preliminary work of constructing the road o: aee^s 'o tlie ^U^,m and tfce format! n of tlu'. workmen's township referred t ) in my report of 1919 has be 'n maiiitiined. The greater number of th^se m e n require somii time to accu-tom themselves to work after the voyage from Europe, and some have not etitirely recovere<l from tlie hanlsh i |« they endured at the front; for tiiis reason the employment of returned men has added somewhat to the

initial

4 3

Boirral..—This ne scheme w.is commenced. The e 'U Aruction of a service ro-iervoir of 2 JO,000 ;alluu.s cafiacity is proce.-. ling by contract; a contract h.is been let to the State Monger Pipe Works Et>r tho jipply of " I lume " pipes for tht^ gravitation main, whihj arrangements are now being made for the supply if Cliw remaining maU^riai and for the construction of the storage ibim on the WingecarriboH Creek.

(c) CoutUry Towns Water Supply.

Howral.— Tliis ne v scheme w.m commenced. The c mArLicbion of a sorvicft reservoir of 2.)0,000 gall. N41] of

Broken Hill.—Tlie new pumping jdant for aug-nonting tho supply from UmberumlTcrka came to hand after protraetel deUys rer'ei red to in the rejxirt of 1919. Insfallarion of thi^ inarliinery with the necessary buiKlings is practically complete and trials are now being arranged. I'his plant consists (»f triple exi>ansion vertical Corliss rotative marine type pumps by Hath()rn l)avey, steam cylinders 1(5 inches, 28 inches, and 40 inches diainotor, with single acting rams 1 \ \ inches diameter and 3 feet stroke. Steam

initial cost of the work. It is satiafaetory to note, however, that the greater number of them have now overcome these (H sad vantages. I t is undoubtedly lieneficial that these rcturne<l men should tlms reliabililato themselves in civil life on a necessary unilcrtaking of this character rather than that special work not so necessary should have been started to afford them employment.

Mr. G. Haskins, Suiierviaing Engineer, is in local charge of t h e work of construction, assisted by Messrs. C. C. Ware and A . Chalmers.

( 6 ) Hunter District Water Supply.

Chichester River Gravitation Scheme.

During the period under review further progrejw has been made with the construction of Lin-Chieliestisr dam ; this pn^Tess has been hampered somewhat, owing to tlie ditficulty of obtaining suitable siuk), and, later, by tho shortage of cement supplies.

The wall has now been carried uji to an approximate height of 64 feet above the foundation level in the river bod towards the left bank of the river, and the receipt of tho special castings for the scours will enable the diversion channel to he closed and the work on the other or right side of the stream to proceed.

A considerable portion of the area to be inundated has now been cleared. A 2-feet gauge traniHne follows up the clearing gang and conveys suitable logs from the cleared area to the mill. A t lea-st Wo-thirds of the clearing has now been comjjleted, but owing to the riipidly-growing undergrowth a good <leal of brushing will be necessary before storage of water is permitted.

The plant generally with the exception of the .sand-crushing portion has worked very satisfactorily, and has shown itself capable of giving tho output for which it has been designed.

The excavation for the foundations is still proceeding on the left bank. A s was antii.-ipated, it is n«t:essary to carry these to a gr-^ater depth than was originally intended owing to the faulty nature ui the rot'k ; excavation is also in progress towards the right bank of the liver, preparatory to c<mcreting.

As stated, considerable difficulty has been experienced during the year with regard to the supply of sand. After further trials the sanil rolls were found to be altogether too light in their present comb itui f w the extremely heavy work required of them ; these rolls were, therefoie, discarded as unsatisfactory for the work. Further search was made for suitable sand or to ascertain whether a suitable rock, which m'gl t t be more easily crushed than tho Iwa l formation, could be obtained. This disclosed that the nearest deposit of sand in any quantity is situated at Oakhampton on the Hunter River, and that there was no rock suit­able for c rush iT ig in the vicinity of the works. I t was considered advisable, therefore, to continue the experi­ments in crushing the local rocks into sand ; a further set of rolls was made of a very strong heavy type, having spindles of a tf inch diameter, forged shafting;, and roller rims of very hard cast steel. I t was subseiptently found necessjiry to install two of these heavy sets of rolls ; tiie fir.<t beim: set 1o reduco the product from the gyratories to |-iiich gauge, the .'second set to further reduce the product from the firs rolls to the fineness of suud. This ariaiigenient of the plant has now been runniny about six weeks, and s-j far tho results obtained h i v e been satisf ictory; the wear and tear on the rolis ajijiears to be brougb • w i t l i i n roiLsoiuiblo Hoiie^, tho rjuality of -land in .satiafactoi'v, an \ the output, should eqiml the antieipaie.l requirements. The quality of tlie concrete made of siiml so obtained it* excellent, ami the reaahs olnatne 1 fnitu the testing o j sample blocks ar« in excess of the specified strength required.

During tho past; year the health of the employees and other residents in the village has been g o o d .

The gravitation main forms an important feature of this scheme. I t has been decifle<l to constrmt the first !) miles from the dafn of continuous woodwtave pipe feet in diameter, and a contract h s been entered intti with the .Australian WiMnlstave Pipe Company for its cons^ruc^i•• n. I t is provide! in the contract that the Department shall supply brush box timber as sawn scantling for the work. This timber is plentiful in the iieigbbourliood, and will, it is considered, be found emincntlv suitable for this buin of construction.

The coii-itniction of the remainder of the pipo-liive, which will be of steel locking-bar pipes, has been (lelayod pending thti purchase of tlio necessary steel plates. For vario^as. reasons the purchase of these plate-s was not eilecLed during the war period. Inquiries were Boaiio in Novomlter last by the Agcnt-Gon^val in liuuipo and America, but in view of the high prices reL'eive<i none ol the quotations were ac<-f^pted. Further quotations were obtaineil; by the Ag ' 'nt-(Jenoralearly in 1920. and .i ccmtract was entered into witi* the United Srates Steel Produc ' s Company for tlve suppJv of bhff rieee.s-w.ry barrel, collar, and spigot plates for 44 miles of pipOrliue, c.i.f. Neweist le , deliverios Iri-st quitrter 19 21) and tir=t q-iai-ter 1921.

The work of construction of the Chichester dam re'"erred to-at>ove hnnS; lieen carried out under the snpervi.sion of Mr. A. E. Cutler, M.Inst.C.E., Chief Eng in i \T for Public Works, Newcastle.

Mr. E. T. lUmirng, AssocM.Inst .C.E. , Sujx^rvising RMgi-.cer, 'R rn local charge of the woik, assi^Bed by Alessrs. V. H. Turner, G. BeUinghara, L.S., and 1'. f l . Prince.

18

44

w r k in hand consists of a pump-well and engine-house, pumping machinery, rising main, and partial reticulation, all of which will be conndeted as soyn a>i the nccc.s.miy material bu.s been delivered.

7"onieor//(.—The construction of a scheme for augmenting t h o water supply to t h e town of Tamworth which was started in 1917 was continued iluring tbe year. A new pump-well at ParadiM-, from which the supply of water is n o w obtained, was completed ; an auxiliary pumping plant has been delivered and t h e work of erection is in hand ; pipes for a new 15-inch service main aro also under supply.

4. W o i l K S PltOPOSIiD ([jIVESrKJ.iTION'S).

{a) Sijdneu Waler Supplij. The Special Board inquiring Jiito the Sydney water supjily augmentation decided that tlie Cordeaux

dam be increased by 10 feet above t h e height originally proposed, so as to impound 20,000,000,0001 gallons, and the surveys for tho increased storage are being carried out. Surveys on the Avon River a r e now in hand for the estimation of the stomge contents. Consideration was given by the Board as to t h e advisability of diverting the watcirs of the Nepean, Burke, and Little Burke rivers by tunn{ds into tho j Avon storage. Tho survey for a tunnel from the Nepean to the Biirke—a distance of 2 miles through, exceedingly rough country—has been made, and the survey of the further tunnel to the Avon from tho Burke ia approaching completion. A survey has also been made for diversion weirs on the Burko and Nepean rivers.

» ) .

,'jun8t Limited.

Goulburn.—The new 1-1 incli dijunefccr main from service reservoir to Clinton-street was extended nortli and south witli 10 inch, 8 iiicti, and G inch mains to give improved service to the city and provide for suhurban expansion. The expenditure for the year was £ 5 , 4 1 0 .

Glen luvcs.—This scheme was described in the report of 1919 aa being complete with tlio exception of the permanent pumping plant The supply continues to lie maintained by means of the temporary steam p l in t also previously ri-ferred to. The Council have under ct)nsideration the installation of a munii-ipal electricity supply undertaking; up to the present, however, no decision on the (juestion has been arrived at and tlie purchase ot permanent pumping plant has on this account been deferred.

Kxperience gained during the recent drought indicated that the (low of the Keardy Uiver was hai-dly sulhcienr. to maintain at all times an ample supply. The construction of a stonige reservoir a short di-tance above the pumping-station {which was referre*! to at the time of the original inquiry into this jchcme) is under consideration in order that an ample supply at all times may be maintained.

Grafton.—New Submarine Main.—In order to insure a more certain supply for North Crafton, plans were prepared for a duplicate main across the Clarence River. This main will consist of Mannesman tubes 8 inch diameter by 25 feet long, with an improved Hanged joint which will permit the pipes when laid to conform to the slope of the bottom. Tlie pipes have been delivered at Grafton and the work of dredging and preparing a trench in the bottom of the river U in hand. The total estimated cost of the work is £ 7 , 0 0 0 .

Hotel Kosciusko. — For the purpose of improving the supply and providing adequate protection against fire, it has been decided to complete the daui cornnience<l in 1914 utilising the plant and labour available at the hotel, in accordance witli the plans, itc., already prepared.

Invcrell.—Tho position with regard to this water supply diilers little from that as described in the report of 1919. The original scheme as designed comprises a pumping-station on the Gwydir River witli a long rising main of steel, two service leservoirs, service main, and reticulation. The work so far completed comprises the two service reservoirs, service main, and a small portion of the reticulation ; the purL^liase of the pumping macbin(;ry and the steel plates for the rising main was deferred owing to tho high prices ruling. Fi'esh tenders for tlu; pumping machinery called during the year were referreil to the Council, but up till the pi'esent no decision has been arrived at.

Junee.—On aecount of the heavy demand on this supply during the recent drought, the gravitatitm main to Junee was unable to deliver the quantity of water required ; in order to increase the delivery of tho main a boosting plant is being installed at a point about 6 miles from Junee. The plant consists of one Babcock & Wilcox boiler, and a 4-incli, 4-Htage turbine pump capable of delivering 20,000 gallons per hour against a 350 feet head, driven by a high speed vertical typo compound engine. The crei:tion of this plant is nearing completion.

Ifarra dera.—The town of Narrandera has heretofore olitained a supply of water from a scheme prepared and constructed some years ogo and financed by the Narrandera Council outside the provi.sions of the Country Towns Water Supply and Sewernge Act. The works comprised a pumping plant drawing water from the Murrumbidgee with service reservoir and reticulation. Upon application by tho Council, a scheme of works of aniplitication was recently prepiired liV the Depaitment. These works consist of additional pumping machinery, addiiions to cngifie-house, new suction main, new rising nmin of reinforced concrete pipes manufactured by the " H u m e " process, two concrete service reservoirs eaidi of -^)00,000 gal Ions capacity, and improvement of the existing reticulation. An Knabling Bill was assented to on lOth I)eceml)er, 1919, and the works have been put in hand. A contract has been let for the con'*truct!on of the two service reservoir-i, a l s o for the coiistruetion of the rising main by the State Monier Pipe W o i k s : the improvement of the reticulation is being carri^'d out by the Council, the pipes baing supplied by the Dcpartment-

7'exk Hill.— -A. Rchome for a water supply for Peak Hill consisting of a storage dam across the Bog<n River at a point al)out 4 miles from the town with a service reservoir and reticulation for the main street has be^n designed and construction put in hand. The storage dam, consisting of an over!»hot weir across tho Bugan River 224 feet long, with an eartUen wiuji bank and a spillway portion of concrete

1 5

(&} JIunlcr District IValcr Svpjlij. Chic'hostcr lUver Gravitation Scheme.

Tho riipi<lly growinr; r nqu i r emni i tH of Newcastle anil district fiinc3 the Chichester gravitatitm-schonie was approved of hy Parliament have iriccssitate 1 furtlier investigations with reganl to this scheme. A survey lias I«en made for an additional storage on the upper p<irtion of the Chichester Uiver 3 miles ahovo the Chichester dam at a site where aiiproximatety I 5,000,000,000 gallons can bo impounded with a dam at a height of 15G feet. The alternative of raising tlie dam now under construction was also looked into. During the recent dry period the flow of the Chichester Uiver never fell below 4,000,000 palhnis and only fell to this figure for a few days during the drought of 1 919. In view, therefore, of the efiicient nature of tlie catchment area, as disclosed by rainfall and gauging records taken during the last eight years, it is considered that the dam now being constructed to impound ."),000,000,000 gallrui.s from the joint discharge of th(! AVangat and Chichester rivers will be suilicient for the requirements of the Hunter Uiver district for many year.s to come, and that when such recjuirements do exceed the safe draft of that dam consideration can be given txi tho construction of the second ono on the Chichester Uiver regulating further the flow of that stream and permitting the dam now under construction to regulate mainly the tlow of the Wangat. Further surveys of deviations for the gravitation main have Ixien made. I n this connection see the report of tho Special Board on the Newcastle and Hunter District Water Supjily.

(c) Coun'rij Towns iroi<r Snpjly. Armit/ale.—The water supply to this town failed in September, 1919, and the Council requested a n

investigation for a supply to augment the existing works. Following upon preliminary investigatiime, surveys have now beeu commenced for alternative ]tropos.als, including a gravitation supply with a largo storagf! on the Guyra Uiver at Mjilpas, or alternatively for a pumping scheme on the same river up stream of th(> Kem()aey road crossing, the existing scheme and storagt; at Dumaresq Crwk Ui be retain(;d as a reserve supply. Ujion coin[ih'tion of the surveys, estimates will be prepared for con.sideration by the Council, and subsequent submi.s.sion to tho Public \ \ orks Committee.

Jicrriyait.~\n investigation is now in hand to supply Borrigan with water from tho Barooga TriLst's drains; the Barooga Trust having olVered to supply the necessary water in jmyment of a sum of X400 a year. A storage dam is proposed at Berrigan and the necessary survey data is being obtjiined.

Ilerrif.—A survey has lieen made and an estimate prepai-ed for a supply to the Belong farms—parti of the lierry Municipality—from a storage on the Tandingulla Creek, whence tho water may bc gravitated \nU* the existing reticulation. The supjily at present is obtained from the Nowra installation, but owing to tho increasing demand for water in that municipality notice has been given by the Nowra Council that tln^ supply of water to lierr-y will IH) discontinued in November next. Executive approval is being obtained for this work and plans are in course of preparation.

lidliyigr.n Town and District.—-A preliminary investigation is bidng mmle of alternative schemes either to supply the town of Bellingen only from the North Creek, or alternatively, the Bellingen Uiver ; or to sup[ily tlie Bellingen ilistrict including the towns of Bellingen, U;ileigli, Uejiton, and Urunga from the North Creek by gravitation, or alternatively, by pumping from the Bellingen Uiver.

Coolamon.—A B c h e m e for a supply to the towns of Coolaraon, Ganmain, Marrar, and Matong by pumping from the Murrumbidgeo Uiver has at their reiiuest been submitted to the Shire Council.

Gidcairn. —A proposal to .supply the t(»wn of Culcairn by pumping from a well to be sunk to water­bearing drift is under consideration.

Dorrigo.—At the request of the Shire Council a preliminary investigation for a water supply has been nuide, and it is now proposed to sink a trial shaft at a site selected near the Biclsdown Creek with a view to obtaining from the drift adjoining the ci-cek a naturally filtered supply of water.

Firdey.—Alternative proposals for a supply to this village have been under consideration, namely:— 1. B y obtaining a supply from the Barooga Water Trust and gravitating the water in an open channel

from Berrigan—a distance of about 12 miles—into a storage basin ; or alternatively— 2. B y cutting a short length of drain and tlie utilisation of tho discharge off a catchment area ot

rw squaro miles by storage in a large tank excavated on the outskirts of the village adjoining the present public watt^ing-ploce; a stand-pipe supply to bc provided for domestic and stock purposes. Tlie Shire Council have pas.sod a resolution asking that the latter scheme be undertaken, and designs are in liand.

Ceuria.—A proposal to supply this town by pumping from a well has been adopted by the Council. I t is not proposed to reticulate the town at present, but to dtdiver the water through stand-pipes. The work has not yet bi^m juit in hand.

Gvlqon-). — .Mternative pumping sclicah'S for obtaining water either from the Cudjegong Uivor or from the Wait-a-While shaft were investigated some years ago. Both of these schemes, however, were adversely reported upon on account of the quality of water.

The hai"dship.s experienced by tlie townspeople during the recent drought caused the Council to re : j u t«t that further tests of the Wait-a-While shaft, both as to the quantity and quality of water obtainable, be undertaken, and arrangements are being made accoi'ilingly.

(loulhurn. T h e present supply is immped from storage reservoirs formed by two small weirs on the Wollondilly, together impounding 140,000,000 gallons. The population and consumption of water in Goulburn has been increasing rapidly, while the industrial requirenients are considerable. During the recent severe di-ought the supply from the Wollondilly Uiver did not fail, but on two occasions the (juantity available became so n^luced as to cause considerable anxiety. The population ia now 15,000, and a large portion of the town has been connected to tho recently-completed sewerage system, so that any failure of the water supply would be a very serious matter. The Wollondilly Uiver, with its tributary btrcums, is the best source, in the vicinity of Goulburn for augmenting the supply available. The storage capacity of till' lower reservoir on the Wollondilly Uiver ha.s been considerably I'educeil since its construction by the accumulation of silt, and the removal of this silt would he a costly undertaking. In order to increa.se the

capacity

46

present capacity of this reservoir plans were prejMired and tenders invited for raising the weir 5 feet, a work which it is estimated woukl impound an additional 55,000,000 gallons. One tender was received, but the Ooulburn Couneil declined to accept it, and requesied that, as an alternative, the question of raising tlie upper weir o n the Wolloudiily River at Rcssiville .shouhl bo looked into. Botli fhe proposals referred t o above for raising the exist ing weii-s on tlie Wollondilly River woulil, if carried o u t , result in a n augmentation of the storage, which, in view of the growing requirements of the city of Goulburn, may be regarded as comparatively small, and in order that a storage on a much larger scale may be provided surveys have been made on the Upper Wollondilly, below the junction of the Pejar Creek, for a reservoir, the capacity of which is estimateii at 1,400,000,000 gallons. The elevation of the site of this reservoir would admit of water then'from being gravitated to Ooulburn, and the higher levels of the city could bo commande<i. The distance at whicli this reservoir is situated from Goulburn would render the construction of a gravitation main a costly matter; but it would lie practicable to gravitate water from this storage if constructed, down the Wollondilly River, thus replenishing the existing storages tn the neighbourhood of the pumping-atation, whence the water would be lifted into the city service reservoirs as at present, while deferring the construction of the gravitation main. A t the date of this report the plans and estimates for this larger reservoir, which is known as the Pejar scheme, were approaching completion, and it was anticipatwi they would be ready for submission to the Goulburn Council for consideration in July.

llf.nty.—A survey has been made and estimates prepared for a gravitation scheme from a proposed storage on the Buckargingah Creek. Notwithstanding the low rainfall and high evaporation in this district, i t is considered that a sulfitient supply for domestic and industrial requirements may be ensured by constructing a storage reservoir of large capacity. This scheme has been submitte3 t o the Shire

• Council.

Kandos.—A reliable supply o f water t o Kandos is a matter of importance o n account of t h e cement works at that place.

The water supply to the town has been met, until the last summer, by a small storage reservoir on Reedy Creek, constructed by the Cement Company, impounding 35,000,000 gallons. Owing t o the drought this storage failed towards the end of 1919, and the Kandos Company in conjunction with the Rylstone Shire approached the Government for a permanent supply for industrial and domestic requirements. An investigation was accordingly made of the surrounding district, and a scheme surveyed for a supply from natural storages on t h e Cudjegong River, distant some 15 miles from Kandos, and Rylstone.

The Kandos Cement Company have obtained permission under the Mining Act t o carry out the work and are n o w proceeding therewith, but i t has been stipulated that if at a n y t ime the Shire Council should so desire, water will lie made available to them from the Company's mains as, when, and where required, at a cost of Is. 3d. per 1,000 gallons. Water may thus be supplied either at Kandos or Rylstone a t a cheaper rate than the construction of a n independent scheme would permit.

Katoomba.— The growing requirements of Katoomba, due to increasing population and t h e extension of the sewerage system, liave exceeded the available supply from the existing storage. Works of augmentation will be costly, a s only small catchments are available, and in every case the water will have to be lifted a considerable h e i g h t There is little doubt that in the future it will bo necessary to utilise the waters of the Grose River by co'nstructing a storage dam below the junction of Mount Victoria Creek ; on account of the expense of the high lift, siKrh a scheme would, however, at the present time be beytnid the financial resources Of Katoomba and the adjoining towns. The most suitable proposal for t h e immediate requirement* is the construction of a storage of some 100,000,000 gallons on Cascade Creek about 2,000 feet down-stream of the existing dam, and the subsequent construction of small pip((-head weirs on two branches of the Rocky Creek, between Katoomba and Medlow, from which water may be lifted to the existing storage. The catchment area of the two branches of the Rocky Greek, except in so far as it is already alienated, has been reserved. The proposal to construct ndditionat storage on Caacade Creek has been aurveyeil, estimates prepared and submitted for the cunsidenition of the Council.

Liihgow.—Lithgow has n o w a ]iopu!ation of aliout 12,000, which is rapidly increasing. The existing water supply relies on two storage reservoirs together having a capacity of 119,000,000 gallons, the total area of the catchment being alxnit 5 square miles. A large proportion of Lithgow is connected with the sewerage system, and the industrial requiiements, including the railways, are now considerable. A small augmentation to the supply h a s been provided by the construetion of a weir on Clarence Cret'k and a gravitation main. With a view to further augmentation, a site for a storage reservoir on t h e Marangaroo Creek or Middle River, whence the t«iwn may be supjdied by gravitation was selected. I t was found during tiie late drought that the Ilow of this stream, tojiether with that of a n adjoining water­course, would provide a sutHcient flow for present re(|uirenients, and two small weirs to act as pipe-beads for the gravitation main will be constructed—the construction of a storage reservcir being deferreri for the present. The projiosal was submitted to Parliament, the necessary authority Act pas-sed, ami tho work h»s rtscently been put in hand.

lAsmore,—The Council have requested a n investigation for a gravitation scheme to take tho place of tho exist ing pumping scheme from Wilson's Creek. The most suiudde proposal is a supply from Rocky Creek, where a storage dam may bo constructed at a sutlieient elevation to admit of wat*'r being supplied by gravitation to the existing service reservoir; this scheme has been the subject of a preliininary examination but the surveys are a t present in abeyance.

Lockhart.—At the request of the Council a bore is now Iwing sunk t o determine tbe possibility of obtaining a water supply for Lockhart from subterranean sources. So far the water obtained has been t o o salt for domestic use, but further sinking is proceeding to ascertain whether tlie qualtty will improve and the quantity prove sufficient. I t is prop<JHed if the tests are satisfactory t o install deep well pumps and a stand-pijie supply.

Molong.—Tiurifi^ tho recent drought a serious shortage of water occurred in Molong. A small supply was obtained from a shallow well in the town alongside i l o long Creek, but the water from this well was very hard and was liable to contamination by drainage. In order to provide an adetjuate supply for the town a scheme has been prepared for a storage dam o n the Borenore Creek, about 1^ miles from its junction with the Molong Creek. A t this s ite a storage of about 50,000,000 gallons may be

obtained

4 7

obti ined (which can lie increased as th* requiromants demand) with a catchment area of about 10 square nnlea. Tlie level of the reservoir will porinit of the water gravit i t ing t > a site for a service reservoir cuiuuianding the wlmle of tlie town. Altliough this scheme is probably beyond the present iinancia resources of the town of Jbjlong alone, it is aiitieii)ated that the increasing railway requirements may soon permit of the .scheme U'ing u in ied out. Surveys have Ijten made and estimates are now in course of prej)aration,

Narrabri.—A scbeine has i-ccently been investigated for a water supply to Narrabri of naturally filtered underground water.

Narromim.—A scheme previously prepared for a supply to Narromine from the Mac(|UHrie River, including pumping plant, treatment work.s, and reticulation, wa.s found to be beyond the financial reach of, tho town under the provisions of Country Towns Water Supply and Sewerage Act, notwithstanding that the cost of the water w^ould b e jess than Is. Gd. per 1,000 gallons. Underlying ihe town is a wat*'r liparing stratum approximately 100 feet below ttie surface, i n t o which wells supplying many of the properties have been sunk, and walei- lifted therefrom by windmills. The Council have asked for tho construction of a well and pumping plant with stand-pipe delivery of water. It is considered that such a scheme would be of benefit, but that no leliance can l)e placed on obtaining large quantities of water.

Oran;p.—Augmentation of the supply to Orange by the construction of a dam, pumping plant, «fec., at Meatlow Creek, was c o m j i l e t d t w o years ago, and enabled the sujiply to be maintain&l during tlie recent drought. The origininal storage at Gosling Creek, which impounds 1.10,000,000 gallons, fell during the drought to 10,000,000 giillons, and the Menilow Cie. k storage, which impounds 150,000,000 gallons to .')0,00b,000 gallons. Tho major portion of the muincipality is sewered, and the consumption is on an average 600,000 gallons per d a y , t h a t the town bad at one time only two months' supply in hand. The sewerage system will probably b e extended to Kast Orange in the near future. Furtlier augmentation of the w a t e r for this growing town is necessary, and consideration is now Ijeinj; given to three alternatives; either of raising the existing dam at Gosling Creek, or at Meadow Creek, or the construction of an additional storage reservoir on the upjier portion of the Meadow Creek at a site known as the Devil's Ibile. The catchment area above this latter site comprises the l)e,>t collecting area of the Canobl«sRjinge. Fstimates are now being prepared of t h e cost of thf^ several ]>ro[)Osals.

Parkes.—Tho town of Parkea is growing rapidly, white the requirements of the railway in respect of water an; increasing, llestrictiomi on the use of water bar! recently to be enforced. During the recent drought the lluiidieiry reservoir was at onet ime depleted, and the Beargamil reservoir at the same time contained only I'J,000,000 gallons. An application was received fiom the Council for the raising of the Bund>erry dam, so as to increase the capacity of the reservoir, but for engineering reasons this is impracticable. Tho capacity of the Beargamil reservoir, however, can be increased to impound an additional volume (»f some 30,000,000 gallons by raising the embankment 3 ft. 6 i n s . , and plans and estimates for this work are in hand. It is considered that an adequate supply of water to meet the increasing require­ments of the town of Parkes, together with railway demands, can best be provided by the ccmstruction t)f a large storage on Gulf Creek, and surveys and estiinate.s for such a storage an. now in hand.

Scoiv..—Two alternative proptisals for a supply of water to Scone have lieen investigated: (1) by gravidition from a storage on t h e upper portion of Miildle Creek, or {'!) by pumping from a drift where t h e channels of Kingdom and Middle Creeks approach each other in the vicirdty of the Scone showground. A fa ir ttupply of water is indicated in tlie drift, but the rate of infiltration to a well, if sunk, is uncertain. The Council h a v e aakud for surveys of t h o alternative sohemtja, and thoi*e will he undertaken a s soon as an ollicer is available.

Sontk-West Tahldaivh.—A. further investigation has been made in regard to a supply for the Houlli-We«6 Tablelands, including the towns of Gootamundra, Stockingbingal, Temora, Barmedman, Wyalong, Murrumburrah, Harden, Young, and Grenfell. This scheme comprises a pumping-station on the Murruinbidgee River a t Jugiong operated b y power transmitted from the propo-'Cti bydro-electric station ai Barren dai-k. From this pumping-.station the water would be lifted to di.stributing reservoirs and settling tanks on the Cowang Range, whence tho water would gi-avitate to Wyalong and lo Demondrille e n route to Y o u n g ; from l>emondril)e the water would l>e lifted to Wambat Hill , 3 miles distant, wliiuli is at Hu'Uoiont elevation to permit of it gravitating to Grenfell.

Surveys have been completed for the i^ortion of the work to Temura via Gootamundra and to <irenfell ria Murruinburrah, and tho remaining surveys are now being completed to enable estimates to IK» prepared. Sites for service reservoirs are being surveyed, and particulars as to reticulation required in the dim'rent towiia are also being obtained.

The distance to Young and C!reiifell from the pumping-station at Jugiong is so great that, when the iwtiniateN for the scheme are ooinpleted, it will probably be found that t h e cost of water delivered from tlie MurriinibidgOf* Ut these t o w n s is prohibitive. Further, the configuration of the country is unfavourable owing to the iiifervening range. For this reason, alternative an<l separate schemes for IOCHI supplies for tlie.se t o w n s are being investigated. A deputjition, representative of tho whole of the towns mentioned, as wel l as the surrounding districts, waited on the Premier and urged that th i s work be carried out a s a national scheme, the State to bear a portion of tho charges in view of the development which i t was anticipated would follow if the scheme w e r e carried out. The Premier informed the deputation that the matter would be referred to tho Parliamentary Committee tin Public Works at an eiirly date, and the projiosal along the linos indicated above i s being prepared for inquiry by that Committee.

Tocumuol.—A scheme for a supply of water to Tocumwal by pumping from the river Murray has \teuJi surveyed. Plans and estimates are now in course of i>ie]>aration for submission to the Council.

lVr,it Waa.—An investigation for a wa'er supi>ly from .an artesian bore with overhead tank and mains has been made and the scheme submitted to tho Nainoi Shire CounL-il for their consideration.

IFcrris Cr.wA.—A prelinnnary investigation for a supply to tho important railway junction of Werris Creek has been pre|mred for submission to the Shire Council ;. the, proposal comprj.ses a gravitation scheme «ith a storage d a m on the Quipolly Creek. A detailed investlgatiuu of this scheme will shortly 1H? undertaken.

Tho following surveyors were engaged upon work of water supply investigations :—Messrs. H . E. Van Hemert, W . H. Tibbits, L.S., and H. V. Macintosh.

(*)

4 8

Total £ 1 5 3 , 6 5 1

2. WORKS COMPLETED.

(6) Keiccastle Seu-crage.

Work No. 15, 1917-18 .—This work comprised the sewering of an area of approximately 170 acres at North Waratah ; work was commenced in O(;tober, 1918,completed in January of th i syear ,and handetl over to the Hunter District Watt^r Supply and Sewerage Board. The appn>ximate quantities were 18,013 cubic yards excavation, 21,840 lin. feet of 6-inch pipe sower, 1,996 lin. feet of 9-inoh pip<! sewer, 135 concrete manholes, twenty-seven concrete 6-inch exhaust, and thirteen 6-inch induct ventilators. Tho estimated cost was £ 8 , 0 6 4 and the actual cost £ 7 , 8 8 2 19.s. 3d. The work was carried out by day lalwur.

Work No. 4, 1919-20 .—This work comprised the sewering of about 120 acres within the Municipality of New Lambton. Work was commenced early in duly l i s t year, and was completed in March, 1920. Tho approximate quantities were 12,784 cubic yanls of earth, S24 cubic yards of rock excavation, 3,740 lin. feet of 9-inch E .W. pipes, 13,422 Hn. feot of 6-ineh pipes, and 836 lin. feet of 12-inch pipes were laid ; eighty-eight concrete manhol&s were built, and nineteen concrete exhaust and nine induct ventilators were erected. Tho estimated cost was £ 7 , 5 8 5 , and the actual cost was £ 7 , 3 7 6 3s. 4d, The work was carried out by day labour.

Work No. 8, 1919-20 .—This woik comprised the extension of the sub-main from near the Show­ground at Broadmeadow via Chatham street and Boreas-road to Turton-streot, together with the reticulation and ventilation of an area of approximately 220 acres between Brwdmeadow ard Wartitah South. The sub-main consisted of a length of 2,197 lin. feet of 18-inch Monier pi|ies, 1,846 lin. feet of 16-inch E.W. pipes, and 2,342 lin. fet^t of 12-inch E.W. pipes; the reticulation consistfnl of 2,5G6 lin. feet of 9-inch and 20,226 lin. feet of 6-inch E .W. pipes; 1.35 ctmcrete manholes wore constructed ; 35,226 cubic yards of soil and 797 cubic yards of rock were excavated. Work was commenced in Sejjtember, 1919, and construction was complet^ed in June of this year. Some ventilating shafts have yet to be erected which will probably be completeil by the end of this month, when the section will IH* handed over to the Hunter District Wattu- Supply and Sewerage Board. The estimated cost was £ 1 7 , 7 1 1 , the actual cost to date being £ 1 8 , 5 9 3 19s. 9d. The additional cost is due to a variation of the award governing the wages of the labourers engaged, together with the construction of other lines not allowed for in the original estimate. The work was earned out by day labour.

The above works were carried o'lt under the supervision of Mr. A. E. Cutler, Chief Engineer, Newcastle.

(c) Country Towns Sewerage and Stormwater Channels.

GonJhurn.—This scheme, which has been fully described in a previous report, was completed during the year and transferred to the control of the Council. The total cost was £ 9 1 , 1 5 4 . A t tho request of the Council an extension of the reticulating sewers to provide sewerage facilities for a sattlomont in Lansdowne-street was carried out at a cost of £ 1 , 0 9 2 , and a further extension to serve tho soldiers liomes, at the south end of Slone-street, has, at the request of tho Council, been approved of, and the construction will be put in hand as soon as plans and designs are completed.

Messrs. H. M. Clarke, AssocM.Ins t .C .E . , and A. W . Schey were in charge of tho construction of the Goulburn sewerage.

Jenolan Caves.—The renewal and alteration to the 6-inch outfall sewer from the Caves House to the sewage treatment works, including a now cast-iron pipe aqueduct, was completed during tho year a t a cost of £ 1 , 1 1 8 .

Litligow.—In order to provide sewerage facilities for tho cottages being erected by the Common­wealth for workmen employed at tlie Small Arms Factory, a sub-main to connect the Council's main sewer with the reticulation in the area referred to, has been constructed at a total cost of £ 5 , 0 5 7 . Tbia provides sewerage facilities for about 100 houses.

3. WORKS UNDER CONSTRUCTION.

(a) Metropolitan Sewerage and Stormwater Channels.

Northern Suburbs Ocpan Out/all Sewer.—The Northern Suburbs Ocean Outfall Sewer l»etween its outfall at Bluefish Headland upon the <iuarantine ground to the crossing of tho Lane Cove River, about half a mile above the Fig Tree Bridge, has been, for purposes of construction, divided into five sections, viz.;—

Ist Section . . . Bluefish to Middle Harbour at Clontarf. 2nd Section . . . Middle Harbour Crossing. 3rd Section . . . Middle Harbour to its interception of tho North Sydney sewers near the present

treatment works at Folly Point. 4th Section . . . Extension to Berry's Creek, near Wollstonocraft railway station. 5th Section . . . Extension to Lane Cove River.

A diagram showing the route of the sewer and the contributing area is attached to this report. Section 1. .

(i) Sewerage.

1. SUMMARY OF EXPENDITURE.

A summary of expenditure for the year upon works of sewerage is as follows :— (a) Metropolitan Sewerage and Stormwater Chaimels ... . . . £ 8 9 , 9 4 7 (6) Newcastle Sewerage and Stormwater Channels . . . . . . 35,181 (c) Country Towns Sewerage and Stormwater Channels . . . ... 28 ,523

40

Section 1.—Work on tho Iflt section has proceeded steadily throughout the year. The total length of this section is 18,767 feet, or with the two outlet drives into the ocean, 19,824 feet. Fifteen shafts, each 11 ft. X ."i ft. 6 in., and ranging in depth from 86 feet to 292 feet, have been sunk. Tlio internal dimensions of the finished .sewer will be 13 ft. 9 in. x 8 ft. 9 in.

The tunnels between the cliff .shaft at Blue fish and the head of North Harbour have been broken through bcitween all shafts, and most of the length has been trimmed ready for the concrete lining. Concreting of the tunnels was commencod, but had to be suspended owing to the shortage of cement.

Tunnels for the two 6-feet outlets from the cliff shafts are now being driven under tho reef which extends seaward from the foot of the cliff. The outlets of these two tunnels will be through a submerged cliff, at a level of about 3.') feet Iielow high water.

l ietween North Harbour and Ciontarf, of the three shafts required, two have been sunk and tunnelling commenced. The third shaft, whicli will be, when completed, 292 feet deep, has been carried down 190 f ee t

The length of tunnel driven during the year has been 6,425 feet, and the total tunnel excavation is 28,500 cubic yards.

Through the flat portion of Manly, extending from Ashburner-street along Darley-road across the Corao and ('entral Park, the .sewer is being constructed in trench. Construction was commenced at the Central Park end, and 650 feet of sewer has been completed, involving the placing of 2,300 cubic yards of concrete in position.

The plant upon t!ie 1st section is for the most part driven by compressed air. Three air-eompressing stations, placed at about equal intervals on the section, supply the power for drills, hauling, pumping, concrete nnxing, ventilation, A c , provision being made for driving with steam or oil when air is not available.

Tho expenditure during the year has been £7u ,296 , bringing the total expenditure lo £ 1 5 7 , 6 8 0 . The average number of men employed has been 157.

Section 2.—Contracts have been entered into with the Manager of the State Pipe Works for tho manufacture of the 6-feet pipps for crossing .Middle Harbour and the Clontarf flat, but owing to the sbortjige of cement this work has been in abeyance. Wharfage accommodation has been provided at Clontarf by the enlargement of the Koslyn Gardens wharf head and tho construction upon it of metal bins. Tracks have been laid from the wharf to the site of the concrete mixers and the pipe factory, and tlio manufacture of pijies and reinforced piles for foundations will be commenced as soon as a supply of cement is assured,

Tho expenditure for the year was £ 3 , 4 9 4 , and the totid exponilituro to date, £5 ,266 . Section 3.—Tho design of this section is completed, with the exception of arrangements for

intercepting and dealing with the silt above tho syphon ; this Department ia conferring with the Metropolitan Board's officers upon this subject.

A t the head of Quaker's JIat Bay, where the sewer will lie constructed for a short length in aqueduct, it is proposed to use the excavated rock from the tunnels in reclaiming the upper part of the bay. As this portion of the harbour is, excepting at high tides, a mud flat, the reclamation will improve the locality, and the propesal has bt en assentiMl to by the Harbour Trust and tho riparian owners, with wdmm negotiations aro now in progress for ac(iuiring the frontages. A s this bay is about the middle point of tho section, it is proposed to provide temporary wharfage and to establish an air-compressor station, from which power will be conveyed in each dirot;tion as far as the terminal points of the section. Some of the plant now in use upon the 1st section will be shortly available, and this will bo transferred and installed at Quaker's H a t Bay.

rhe cost of investigations, surveys, and acquisition of land has been £2 ,146 . .Sections 4 and D.—The final surveys for sections 4 and 5 have been proeee<led with ; owing to the

rapid settlement in the district, it was found advisable to at once ac<|uiro all the land required in connection with shafts, aqueducts, A c , and this is being done by either resumption, purchase, or easement.

Kxpenditure to the end of the year has been £ 1 , 1 2 0 . Mr. F. G. P. Noilly, Supervising Engineer, is in local charge of tho work of construction, assisted

by Messrs. W. L. Cooke, J. A. Hanlie, and E. Makinson. Canterbury, Ctimpw, JSftmore Sewerage.—It is proposed to make a commencement with the

construction of this sewerage scheme during the present financial year. A n order IULS been jilaced with the State Monier Pij )e Works for the manufacture and delivery on the works of 32,000 lineal feet of reinforced pipes from 6 feet to 3 ft. 6 ins. in diameter for the main sewer. A s soon as a sufficient number of these pipes are delivered construction will be commenced.

{b) Newcastle Sewerage.

Work No. 3, 20/21 .—This work comprises the sewering of an area of about 130 acres at Watarah, I Bouth of the railway anil extending to tho limit of tho drainage area near the Watarah reservoirs in a J wesU^rly direction and joining up with the area included in Contract 21, 18/19, which dealt with tbe j AVatarah Infectious Diseases Hospital .

Work was commenced on the 8th June, 1920, and will probably be completed by December, 1930. I t is being carried out by dav labour. 1

\

(c) Country Towna Sewerage and Stormwater Channels.

Duhbo.—The designs for the sewerage are completed, and tho necessary pipes have all been manufactured and stacked in situ. Arrangements have been made with the Council to proceed with the work by dav lid)our as .soon as funds are .available.

Ttimtrorlh. — Beyond completing the designs for the Tamworth «iewerage, no other M'ork has been carried out during the year. This scheme has been in alx'yance some years, the work being sliut down owing to shortage of funds. The pipes required have been made and are lying stacked at Tamworth awaiting recommencement of the work. The expenditure to date has been £ 8 , 7 4 5 .

*7m—T> 4 . J

50

4 . WORKS PBOPOSED.

(a) Metropolitan Sewerage and Stormwater Channels.

T<nhivAl-street Extention Stormn-ater Channel.—In order to mitigate tlie (liwdirtg which takes y)h!ce from tlie stormwater discharge at the outfall of the Penkivil-strcet stormwater channel, surveys and df'^ignK have been prepared for an extension by a reinforcinl concrete stormwater channel from tliis outfall to discharge alongside of tho existing stormwater channel througli the sea wall on to the bo*cb a t Bondi.

The design provides for reinforced pipes 6 feet diameter, with a total length of 2,779 feet. The estimated cost is approximately £ 7 , 0 0 0 .

(b) Newcastle Sewerage. A n investigation with regard to a sewerage scheme for Stockton has been undertaken, a n d a survey

is Iieing carried out for tho pieparation of a design. Schemes aie also in preparation for the sewerage of t b o Broken Hi l ! Propriet^jry Steelworks at Port Waratah and fur further oxtentions at Waratah North.

[c) Country Towns Sewerage and Stormwiier Channeh, Cessnock.-^HuTveya and investigations are in band for sewerage works for the town at Cessnock

and district. This arc-a is closely settled, carrying a populition of some 10,000 persons, and sewerage facilities should b e provided in the interests of health. Tlie Council a r e desirous of having the scheme pnrpaied and submitted f o r their consideration. A s t h e cost of work will exceed £20 ,000 , it wi l l be o n e for incjuiry b y the Public Works Committee when reconstituted.

Katoomha—Mxlcnsion oJ New Treatmeii' Worhs. -Turther considera'ion hiv, boen given a n d surveys made for a scheme for improving the sewerage system at Katoomba. The Council havi* had th<' matter iK'fure them, anil passed a resolutitm adopting the ]>ropos;d, but as the cost will l>e mure than £ 2 0 , 0 0 0 , reference to the Public Works Committee, when reconstituted, will be necessary, and action is n o w being taken to prepare plans and estimates in anticipation of such reference.

Moree.—The Moree Council has asked for a scheme of sewer.igc for the town, and a preliminary investigation has been made. The area is a very flat one, a pumping scheme is , tlierefore, pniposinl. A s soon as surveys are completed a scheme will b e designed and .".ubmitted to tho Council.

West Maitland.—A sewerage scheme for this town is already authorised by Parliament, and i t is proposed to commence construction so soon as funds are made available by Parliaincnt. The growing rofpiirements uf the population have necessitatt^^l a re-design of the tn^itment works as (»iigina]ly proposed. The pumping-station will be on the low ground near the West Maitland railway !;tation. The efllu»:nt from tlie treatment works will drain into Wallis Creek south uf the town. A design is being prepared for treatment of the sewage in liquefying tanks o n the system iiist designe<l b y Dr. Ti'avis, at Norwich, and afterwards improved by Imhort'aud American engineers. These tanks, whicdj ai-e largely used in America, give better results than is obUiiiied with the septic tank, but require freipient attention and skilled iiupervision. A s the installation at Wes t Maitland will lie i n charge of the oliicers of the Hunter District Water Supply and Sewerage Board, it is considered the necessary supervision will be assured.

The effluent from tlie liiiuefying tanks at tho Maitland work.s will be subjected to double filtration through specially-prepared filters, the distribution ujKin which wi l l be effected by Piddian distributors, wliii:li ensure an even distribution over the surface, and have been proved t o be most eflicient in their o]H*ralion. The filtrate will be finally u.sed f o r irrigation purpose.", and any drainage reaching the creek will cari-y with i t l ittle or no pollution.

Wof^ga Wagga.—Under the original scheme proposed for this municijvility, Wagga was ilivid(>d into four districts for sewerage purposes, the sewers i n each district gravitating to a pumping station. The sewerage of No. 1 District, which embraces the more closely-'»ottle<l portion of the town, has Ijeen i n o|>eration some ye irs , and the Council now ask that sewerage facilities be extended tt> the other districts. I>etaiied surveys have been completed and steps ar-e being taken to carry out the survey for the lotrationof the si^wers, pumping-station, t t c , for each of tho remaining districly.

Minor Wnrks.—In conni>ction with the new Consumptive Hospital to b e ereetotl a t Litt le Bay, a BysU'm of sewerage lias been dcfiigncd, cimsisting of about half a miie of 9 inch pipe, t o discharge intf» t h e ocean at the cliff face. The estimated cost of the scheme is £ 1 , U 0 ; construction will b-i shoi t ly commenced.

The following surveyors were engaged upon work of sewerage investigation and detail survey-i:— Messrs. W . L. Cooke, L.S., T. McDonnough, L . S . , T . C. Calvert, Assoc.M.Inst .C.E. , T. C. Wilson, L.S., C. C. Carrick, J. J. Greene, G. G. AVood, and F. L. Mathews.

B — n Y D R O - E L E C T R I C DEVELOPMENT. THE Special Expert Committee, consisting of JVIessrs. E. M. do Burgh (Chairman), W. Corin, anil H. H. Dare, Ms.Tnst.C.E,, appointed fur the puri^ose of advising generally in n^jard to schemes for hydro electric development in the State, have given consideration to and dealt with a number csf matters referred to them. Five formal a s well a s several informal meetings and consuitatiuns were held.

The Barren .lack, Tumut River, and Nymboida Hydro-electric I )ev elopment (Construction) Bill w a s (la-ssed by Parliament, ami assented t o in December, 1919. Tenders have now been invited in Australia, Europe, and America, for the necessary hydru-ele^-tric mai^hinery for the Barren Jack proposal, while specitications for the machinery for the Nymlioida scheme are in coui'.se of i>re|>ai-ation. Consideration bus been given b y the Committee tu the question of the disposal o f the current tliat will U- available from the.se works of electric .supply, and an ollicer has been specially engaged i n inquiring into the prol)al)le demand tor current in the towns nnd districts within the area of influence uf the Barren .lack scheme. The.se matters are more specincally dealt with in t h e report of the Chief EUM-lrical Kngineer.

The

5 1

Tlio Committee dealt with pmposals from a reprosentativo of a company, for tho development of power from thr lieadwaters of the Tumut, with an apjilicatioii for a large Iilock of current fnun l iarrm Jack for maimfai'tui-e of aluminium, i e , , and several other matters of lesser importance. Several liydrt)-electric schemes ai-e at present under investigation, in various parts of the State by the Chief Electrical Engineer, and will, when the investigations are complete, be dealt with in due course.

C — i l l V E R M U R R A r WATERS A C T . AH Chief Engineer for New South Wales in respect of works constructed or to be constructed under

the above Act, I include tlie following report as submitted to the River Murray Waters Commission in acconSanee with the Act for the year ending 30th June, 1920 :—

(a) Hume i<«s©rvoir.—

I. Surveys, Investigations, and Ijand Resumptions. (a) Inaugural Ceremony and Name of Reservoir.

I I . Designs ami Estimates.

I I I . Construction.— (a) Preliminary Work.

1. Road of Access. 2. Siding Acc^Miimo lation at Albury. 3. Provision for SudV, Workmen, Sanitat ioj , Office Accommodation,

(ft) Quarry. (c) Plant, Supply and Installation.

1. Quarry. 2. Dam.

(6) Locks and Weirs .—

I. Surveys and Borings. II . Designs and Estimates. ff'

(a) Size of Ijocks.

(c) Administration.—

Arrangements with regard to control. (a) Hume Reservoir. (6) Locks and Wcir.<.

Operation of Industrial Awards. IMant—Arrangements for Hire.

(a) HUME RKSEKVOIB.

I. Surveys, Investigations, and Land Resumptions, &c. storage capacity surveys are now complete and the plans have Iwen prejtarcd. These show that a

storag*! capacity of ],098,.'>00 acre-feet is obtainable at a reduced level of 602 standai-d datum. Contour surveys of tho dam site and the ground adjacent have been completed and are now being

utilised for the preparation of the layout of tlie w(n-ks of construction generally. Surveys of the rood of access from Albury to the dam site are complete and the plans plotted ; the

length of this road is 10.', miles from Albury, of which 5'1 nnles is new construction. The maximum gradient adoptetl is 1 in 15 against the load.

A survey of t h e township si'.c is complete and tho required blocks and allotments have been pegged out for occupation.

A c o n t o u r survey of t h e quarry site is complet-e and now serves for the purpose of the layout of l>(ant an<l for measuit'iuents gcneraily. A survey for a railway from tlu- quarry to t h e dam site is ciMiiplfte. The gauge adopte<l is .'t f ee t , with a minimum r a d i u s of curvature of 4 chains, and a maximum gradient against t h e load of 1 in i'tO, a n d with the load of 1 in 120.

Resunqition a n d easement surveys for tho rotul of access and quarry have been completed and gazetted, Tho resumtition surveys for the land nwjuired for the construction of the dam are completed a n d .are awaiting g a z e t t a t . Curresponding surveys for t h e lands that will be inundated by t h e stored waters have not yet \teeti undertaken, such not being immediately necessjiry.

The New .S,)uth Wales and Victorian survey parties in running the IovtIs from CumberiKina showt-d a discrepancy of 0 7 1 fiwiL in their results. This line was i-e-run by two surveyors, one from eacli State with t h e result th:it an inti^rmediate v.-duc h a s been adopted which it it" considered does not nec^essitate nny alteration of the T.W.L. pegs originally set out on both sides of the liver.

Additional surveys and invcstinauoiis carrieil out during the year include a trial survey for a ti-ansuussion line from the Albury Council's electric-power station to tho dam ; exploratory borings for sjmd and materials suitable for earthen endiankment, as well a s trial holes on the line of the dam to ascertain the juobdile a m o u n t oE water to bo dealt with in the foundations,

(a) iNArcsBAt, CEREMONY AND NAME OF RESERVOIR.

1^10 inaugural function of turning the first sml took place upon 2.Sth November, 1919, the ceremony ln'ing pel-formed by His ['Excellency Sir Konahl Munro Ferguson, K . C . M . C , Covernor-Oeneral of the Ccmimunwealth. in tho pres4'n<re of a disiinguisheii gathering, including members of the Federal and State Ministries and Legislatures.

A ,

5 3

(c)

A Buitablo name for this great storage reservoir on the Murray River below the junction of the Mitta Mitta has received consideration. I t has been considered appropriate in honor of Hume, wlio, accompanied by Hovell , first crossed the Murray near this spot on abimt 16th November, 182 i , that the reservoir should be named after that intrepid explorer. This proposal having been unanimously concurred in by the contracting Governments, the reservoir on the Upper Murray will henceforth be referred to as the " Hume " reservoir.

II . Designs and Estimates. A s stated in report of last year's operations, preliminary designs and estimates for the H u m e dam

have been submitted to and approved by the River Murray Commission. Further consideration is now being given to the question of design, and on completion of detail plans a complete estimate will be prepared, in which account will be taken of the increased cost of labour and material since the estimate referreil to in the River Murray Waters Agreement was prepared. While , pending the completion of such detail plans and estirnatc, no defitnte forecast can be made of the cost of this work, i t is recognised that the sum of £ 1 , 3 5 3 , 0 0 0 set down in the agreement must be largely exceeded.

III . Conitruclion. (a) PRELIMINARY WORK—1. Road of Access.

The construction of a road of access from Albury to the dam site was commenced in the latter half of 1919. The design provides for a load 40 feet i n width over water-tables reduced to 24 feet in cutting and 36 feet in embankment. The road will be metalled to a width of 18 feet w i th 6 inches of 4-inch gauge, 6 inches of 2?,-inch gauge, and a surface coating of blinding ; the metal obtained from the quarry is highly suitable for tliis jmrpose.

The progress made to date upon tho construction comprise : Earthworks, w i t h minor exceptions, such as bridge ajiproaches, are complete ; twelve concrete pipe-drains are complete ; sleeper-bor drains are under construction ; pilerlriving for two bridges commencing at 0 ni. 33 chains is complete ; over 2 miles of road have been ballasted and the metal of the wearing surface laid for 10 chains.

2. Siding Accommodation at Albury. Tlie necessary plans for railway siding accommodation at Albury, sufficient to cope with all the

anticipated trailic to the dam, have been prepared, and are under consideration by the N e w South Wales Railway Commissioners.

3. Provision for Staff and Workmen. A temjKirary township site has been laid out for the accommodation of the staff, workmen,

storekeepers, and others engaged upon the construction or work incidental thereto. The streets are being kerbed and guttered in the interests of sanitation, and the main street has been metalled.

Accommodation has been provided for single workmen, or workmen whose families will not reside upon the work, in barracks of a type sinnlar to that adopted by the New South Wales Public Works Department at the Cordeaux and Avon reservoirs, a type which has been found satisfactory in practice. The barrack accommodation is laid out in units. Each unit comprises four sets of dormitories, with a central common room, provision for cooking, lavatory and bathing accommodation. Each unit of four dormitories provides accommiMlation for 56 men. No. 1 barrack unit is complete to the extent of two dormitories, the others being in progress. No. 2 barrack unit has l>een commenced. N o . 3 barrack unit has one dornntory comi»lete, and a second well advanced. No. 4 barrack unit is alsi) in progress.

Allotments of land have been made available for workmen who desire to build accomnnxhition for their fiimilies, and a number of men are already availing themselves of this arrangement.

W i t h regard to staff accommodation, a building which will, both as to character and site, be suitable for the residence of a permanent caietaker on the works after completion, has been constructed, and will be utilised as a residence for tlio engineer in local charge of tho work. The main office building is almost complete, and preparations are being made to provide accommodation for the rest of the staff, A post-office was established on 1st !May, 1920.

.loinery has been dillicult to procure, and has delayed the completion of many of the buildings that have been referred to.

In view of the high price of building material"and the difficulty of obtaining it, negotiations were in progress for some time with the Commonwealth Government with a view to the purchase for this work of some of the Ituildings and material forming the Concentration Camp in Federal territory. Tho Commonwealth Government eventually decided, however, that the material could not b<; made available, and it was nccessai y to obtain new material. Some delay was occasioned by these futile negotiations and tho difficulty of obtaining new material.

A water supply for the township and works, including a 24,000-ganon elevated buckled-plate steel tank, has boon inatallod, and is in operation. A sanitary depot at a suitable site remote from tho township has been installed, and is also in operation. Telephone communication has been established between Albury Exchange and the works.

The number of men employed in June, 1920, was 2 0 3 .

(b) QU.\RKY, A suitable quarry iias been located about 1^ miles to the north of the dam site, and a water supply

installed. A working face of about 500 feet has been opened up, and exposes a hard grey granite rock, weighing approximately 169 lb. per cubic foot. A railway from the quarry to the dam site is in c o u r s e of construction. Two tracks will be provided, 3-foot gauge, laid with 45-lb. rails. In connection with this work 12,000 cubic yards of excavation have been removed to date, out of an estimated total of 32,000 cubic yards.

The metal n o w being obtained from the quarry is , as already stated, being utilised for the consti-uction of ^ e road of access.

53

(c) PLANT, SUPPLY AND INSTALL\TION.

Progress lias been made with the layout of tho plant both at the quarry and at the dam as follows:— 1. Quarry.—At the quarry a Hndfield (type S) stone-cruahor driv-^m b y a 25 h.]). l lobey portable

(uigine is in operation, and air-compressor plant 14 inch x 14 inch, x 12 inch has also been installed, driven from the boiler of a seccmd l lobey 25 h.p. portable engine,

Tn addition to the plant above referred to , which has l>een installed mainly to pennit of tho immediate opening up of the quarry and obtaining meUii for the road of access, tenders have been accepUnl for tho following plant for the quarry :—One jaw crusher, two gyratorv crushers, six air receivers, while three air compressors, 14 inch x 14 inch x 12 inch and one steam shovel of 1 ,V yards capacity will probably Vie available from stocks. Tenders will shortly be called for a steam plant of 225 B . H . P . with jet condensi r, and two 5 ton travelling cranes, while arrangements are in hand for transferring two Babcock Wilcox boilers now at Port Kemhla, New South Wales.

Designs have been prepareil fof the hiyout of the crusher phint including screens, bin^, and loading arrangements.

2. Dam. Plans Iiave been prepared of the general layout of operating plant at the dam including an oveihead

cableway, mixer house, roads, railway tracks, jjowcr-house, cement store, Sic, whilti working drawings are in preparation for several of these works of construction. Sketch designs have been prepared of alternative methods for distribution of concrete by means of belt conveyers from the mixer house into tho dam, and tenders will .shortly be called for this section of the plant. A t the dam site it is proposed to opi'rate the principal portion of the plant iv(iuircd b y electric power from a centrally-placed power-station, and tenders have been accepted for two electric generators of 300 kw, capacity. Tenders have also b e m accepted for two concrete mixers, one steam locomotive, twelve dump cars, and four motor waggons ; while two air compressors, one piling hammer, and twenty-three dump ears are being made available from stock. Specifications have been ])repared and tenders have been invited, or are about to be invited, for a travelling cableway of 10-ton capacity, three centrifugal pumps, one high-lift pump, two 5-ton electric cranes, nnd foui electric winches, while i t is anticipated that a drag-line excavator of 2 cubic yards capacity will also shortly be available.

Prior to tho adoption of arrangements for tho supply of power rtferred to above, consideration was given to the transmission of electric current from tho Albury Council's power-ftation sittiaicd on tho Murray River some 2 nules up-stream of Albury. At this station the Albury Council havo a i-mall electric plant which they desire to enlarge. Tho sbition is favourably situated for the supit'y of water for condensing purjwses, and the distance over which conl delivered at Albury b y rail would have to be b.-iu'ed is not gn-at. Tenders were accordingly invited for sutiicient electric plant to enlarge the Council's power-station -SO as to render it cajiable of supplying current not only for the Council's retpiirement but for construction ]»urposes at the Hume reservoir, (he Albury Council expressing their willingness, if the additional plant could be obtained at a ren.sonablR price, to take it over on the completion of the lliiriie reservoir works. The tenders received for tly; necessary elfctriial machinery were, however, so high nnd the period of delivery so remote, that it was found necessary to abandon the proposal in favour of tho scheme now a<iopted—that is, the generation of the power required at the Hume reservoir itself.

Mr. J . Iveitb lioss, Supervi.sing Kngineer, is in local charge of the work, a.MHi8ted by Mes.srs. R. R. C . Gallop and B. S. Dowling.

( i ) LOCKS AND AVKIUS.

I. Surveys and Borings. Surveys of the river Murra}' from Wentworth to Echuca for the purpose of designing the s \s tem

of looks and weirs in this portion of the river are in progress by the constructing authorities of New South Wtdes and Victoria, the Wentworth end engaging the attention of this State authority, Ciinimenciiig at Wentworth the following prugie-ss has made to made to date :—

Base line survey has been extended to the 123-mile mark ; l i iver has hevii (;rcss-sectioned to the 120-milc mark ;

Whi le the Iwnch-nuitk survey has been extended right through from Wentworth to Ecliucn, a distance of 550 miles.

The plotting of the Held notes is proceeding concurrently with the surveys. Suggeste(l sites for the two locks aiul weirs in the neighbourhood of Wentworth and Mildura

respectively were submitted to the River Murray Commission on behalf of New South Wales and Victoria by the Victorian Constructing Autliority, and borings are at the present time being taken at the suggested sites to ascertain the nature of the underlying strata Tliese borings will be extended to cover alternative sites.

II . Design and Estimates. With regard to Torrunibrirry weir, preliminary designs and cit imates have already been submitted

and approved b y the River Murray Commission, as stated in the Commission's report of 1918-10. Tho surveys and borings in connection with the locks and weirs at Mildura and Wentworth are not yet

sulUciently advancinl to jtermit of a detailed design of these works being prepared. The location and design of tho lock and weir at Wentworth requires special attention on account

of its proximity to the junction of tho Darling HivtT with the Murray, and it will be neces-sary to survey and t-ake borings at several alternative sites before a linal determination as to the best location can be reached. This work, however, is receiving special attention.

I t will be noticed from the above that special attention has been directed to the preliminary work in connection with the locks and weirs at Torrumbsrry, Mildura, and Wentworth. These weirs are, out of the whole series pmpoaed in the agreement between Wentworth and Ejhuca, the m o 3 t immediately importi.nt in connection with the diversion of water from the Murray River for the purpose of irrigation and that especially pending the completion of the Hume reservoir and the regulation thereby of tho flow of the river. ( a )

54

SIZE OF LOCKS. The depth of water for navigation of locks throughout the system proviiled for in the agreement is

definitely laid down in the agreement, and the standard width has been fixed at 56 feet. Tho question of the length of lock to be adopttxl from AVentworth to Echuca, and on the

Murrumbidgee, remained open for settlement, special ;ittei'tion being given to alternative standard lengths of 275 and 170 feet. The Uiver Murray Commission sought the views of the contracting States on this subject, and the State? being unanimously of opinion that a standard length of 170 feet would reasonably sutfico for the traffic, and that its adoption would elFect a substantial saving as compared to the adoption of a length of 275 feet, the Commission decided that the standard length of 170 feet should be adopted.

Mr. G. F. Ilickson, M.Inst.C.E., has recently been appointed to take local charge of the work ot construction of the AVentworth lock and weir.

(c) ADMIKISTEATION.

Arrangements with Eegard to Control, (a) HUME RESERVOIR.

Tho arrangements with regard to the design and construction of the several works to be carried out conjointly by the New South Wales ami A'^icterian Constructing Authorities have been arrived at and agreed upon after due consideration of the relative interests involved. At the H u m e reservoir it ha.s been agreed that the work should bc carried out conjointly by the States of New South Wales and Victoria under the joint supervision of the two chief engineers re[)resenting the New South AVales and Victorian Constructing Authorities respectively ; and, for greater convenience of working, it has also been mutually agi-eed that the portion of the dam situated in the State of A''ictoria—that is, from the left bank of tho river Murray southwards, and comprising the earthen embankment with concrete core wall—shall be carried cut by the Victorian Constructing Authority; while the concrete portion of the dam, including spillway and outlet works situated in the river itself and on the N e w South Wales side, shall bc carried out by the N e w South A^'ales Constructing Authority. The whole of the work, both as to design and construction, to be subject to mutual agreement between and under the joint supervision of the chief engineers re[iresenting the Constructing Authorities of the respective States.

{/)) LOCKS AND WEIRS. I t has been pointed out under the heading of " Design and P:;stimatea " that the Torrurabarry, Mildura,

and AVentworth weirs are those most immediately necessary in tlie interests of irrigation. The State of Victoria is more particularly interested in the early completion of the Torrumbarry and Mildura weirs, on account of the utility o£ these works in connection with the diversion of water to irrigation settlements in that State. Both Torrumbarry and Mildura are also more readily accessible by rail from the V^ictorian side of the river than from New South AVales. I t has therefore, in the general interests of the.se works, been mutually agreed between the Constructing Authorities of N e w South Wales and Victoria respectively that the actual work of construction should be carried out by the Victorian Authority, both the design of the works and the construction to be the subject of consultation and mutual agreement between the chief engineers reprc.'^enting the Constructing Authorities of the two States,

In the case of the Wentworth weir, N e w South Wales irrigation interests are immediately affected, and it is probable that a similar arrangement will bc arrived at between the Constructing Authorities, but with New South AA'ales carrying out the actual work of construction.

Operation of Industrial Awards. During the period under review a question of considerable importance with regard to the minimum

rate of wage to be paid upon works carried out under the River Murray AVaters Ag ieement arose. Following on a decision by the New South Wales Board of Trade, the rates of wages for workmen employed on the Hume reservoir by the New South Wales Government was increased. This increase of wages, following as it docs on the increase in the cost of living, will lead to an increase in the cost of works above the estimate unless the increased wages can be compensated for by savings in working costs and other directions. The new awards brought the mininmm rate payable in New South Wales above that payable in the State of Victoria, with the result that the workmen employed by the Constructing Authority in the latter State declined to continue at work unless their wages were brought to the level of those paid on the aame work in N e w South AValea. AVere it practicable for the N e w South AVales Constructing Authority to offer lower wages on the river Murray works than those paid on other works throughout the State, such action would only result in either the failure to obtain labour, or in the obtaining of an inferior grade of labour, which, in the result, would be more costly than labour obtained at the standard rate. N o solution of the difficulty which has arisen has been arrived at at the time this report is written, but it may be that a pronouncement by the Commonwealth Commission on the question of the basic wage throughout the States will facilitate a solution.

r i a n t .

Aa mentioned in the report of the River Murray Commission for 1918-19, it has been agreed that each contracting State Government shall purchase the plant nece.ssary for its operations, making a charge against the works on which such plant is employed for tho use thereof, the question of charges for the uso of vai-ious classes of plant being remitted to the engineers of the contracting Governments. This question of charge for the use of plant has formed the subject of correspondence and conference between he engineers, and it is anticipated that a working agreement in this regard will be shortly arrived at.

S T A F F

5 5

D — S T A F F A N D A D i l l N I S T R A T I O N .

Sixty-six professional and forty clericid otTicers were employed in the Branch on 30th June, 1920 This staff of officers o]*erated under the direction of the Chief Engineer, assisted by the following senior otlicers:—

Dt'puty Chief Engineer, A. Peabe, N[.Tnst.C.E.

Professional Assistant to the Chief Engineer, G. B. Carleton, A.M.Inst .C.E. Inspecting Engineer C. A\'. King, A.M. Inst. C.E., assist<;d by Sui)ervising Engineer A . F . ()>born,

A.M.Inst .C.E. , in principal charge of investigations and surveys and all initial work in connection with Sychiey, Newcastle, and country towns water supplies. (Mr. C. W. King lias since been transferred lo to the Newcastle District and liis <Iuties have been taken up by Mr. A. F . Oshorn, assisted hy Mr. C. F. Blain.)

Inspecting Ihigineer C. Simons in charge of construction of Cordeaux and Av<m dams, Sydney water supply, and works under the River Murray Waters Agreement, including tho Hume dam.

Supervising Engineer H . Fleming, M.Inst .E. (Aust . ) , in charge of the construction wnrks in connt'ction with the country towns water supply and .sewerage and investigations for country towns sewerage.

Principal Designing Engineer R. S. Littlejohn in charge of the Engineering l>rawing Office, assisted by Messrs. R. Rutlidge and P. E. L. Hayley.

Mechanical Engineer W . T. Smith in charge of pumping-stations and other mechanical engineering works anil operations of tlie Branch.

The survey drafting necessiiry for the oianutions of the liranch has been carried out under tho direction of Mr. D. R, Alderton, Chief Survey Draftsman. The officers of the Survey Drafting Staff are not incUided in the totals given above.

The officers referred to are divided as fo l lows;—

HEAD OFFICE. Engineering Staff.. . . . . ... . . . . . . . . . 13 Engineering Drawing Office . . . . . . . . . 17 Clerical SUfT 5

FIELD. Engineering Staff (including 27 Inspectors) . . . . . . fi3 Clerical Staff 35

The numljer of clerical officers employed in the Branch is accounted for by tho lunuber of works wliidi the Department is carrying out l»y day labour, fuHilling under this system duties which, under the contract system, would be porforiued by the contractor and Ids employees, such as the work of accounting, time-keeping, and store-keeping. The Broken Hill water supply administered by the Department also involves the employment of a considerable clerical staff.

It is to be regretted that five proEe.ssional officers who could ill l)e spared resigned from this Branch during the year under review, having obtained better positions outside the public sertiee. The loss of tiieir special knowledge and experience, which in most instances was aciiuired during years of training to special work in tho Departmont, is a .serious matter ; and while it is gratifying to fi:id that the training and exi)erience as enginwrs so obtained is appreciatcl outside tho public rfer^ic! and led to their advancement, it is to bc hoped that the steps which I am assured aio now being taken by tho^ Under-Secretary and the Public Service Board to render the service more aitractive to engineers will have' the result of our keeping with us in the future men specially trained in the requirements of the Branch.

Mr. Mii.son Allard, the Royal Commissioner appointed to inquire into the public service, presented: the third section of his report dealing with the Departmont of Public Works in August , 1919. 1 can find; i-othiiig in Mr. Allard's report, whicli may be regarded as adverse to the working of this Branch of the J>epartuient, although many sugg<.stion8 of great value are made by him. The report contains references to the "excellent work" performed by the stall'of the Branch in the past and tlie great field for future development which exists in the State in connection with water supply and sewerage. The Under Secretary will no doubt in his report for the year 1919-20 review the Commissioner's report on the Public Works Department as a whole, but the following brief extracts dealing specially with the Water Supply and Sewerage Branch may properly be quoted here :—

" Railway construction work having been transferred from the Works Department to the Railway Commissioners, the constructi(m of works connected wiiJi water .supply ami sewerage constitutes tho moit important branch of the Department's activities, ami the outlook is almost illimitable.

* " * * * * * * * * " I t is somewhat an astonisliing fact that, excluding Svdney and Newcastle, only ten towns in

the whole of New South Wales are provided with sewerage schemes; while even in tbo metnqiolitan area, thickly-popuIat<"d suburbs still await sewerage connection. Applications have been received for the construction of sewerage schemes in twenty-five ctiuiitry towns, while, in Mr. de Burgh's opinion, nine additional country towns that have not yet asked fur it are in urgent need of sewerage installation.

* • * * * * * « • '•For the volume of work in this Branch there is no appearance of over-staffing, but the working

space is much erampe<l. Attent ion should early be given to tho necessity for more commodious offices by a rearrangement of the allotment of the present building. Some leorganisation is necessary, in, order that the higher professional officers should be able to devote a much greater part of their time to technical matters, instead of being occupied with a quantity of routine work capable of being performed by clerical officers,

" Reference

56

National

' 'Reference is nnide in an earlier part of this report to the excellent work done by the professional staff oE this Branch, and to the inadequate remuneration received therefor."

W i t h legurd to the references in these ([notations from the Commissioner's report, the Under-Secretary has ah-eady given attention to the question of iuipniving tiie oHice accomnnHlation, also to tlio question of reorganisation in the direction of relieving the higher professional ofilcers of portion of tho routine work which they have been called upon to deal with in the past, with the result that cortaia improvement has already been obtained.

This report would be incomplete without reference to tho able and effective assist ince of the staff under my control, without whose loyal co-operation the results achieved would have fallen far short of those attained.

E. M. DE B U R G H , M . I n s t C . E , ,

Chief Engineer, Water Supply and Sewerage. Chief Engineer for N e w South Wales River Murray AVators Act . Chairman, Expert Committee on Hydro-electric Development.

Under Secretarv, 24th September, 1920.

57

National and Local Government Works Branch. lloport foi- Year ended 30th .Tune, 1920.

Sir, I have tlio lienor to report on the work of the Brancli for tho financial year ended 30Lh

dune, 1920.

Tlie total expenditure from Votes of this Department on construction and maintenance of roals , bridges, ferries, and public watering places was £151,0.55 17s. 4d., as per the following details :—

£ s. d. Roads 20,719 7 6 Bridges 90,129 9 7 Ferries 34,514 2 4 Public Watering Places 5,662 17 11

In addition, an expentliture of £ 1 5 , 9 9 0 9s. Id. from votes of other Departments was undertaken by this Blanch.

Of the anviunt expended on bridges, new works accounted for an outlay of £50 ,7S1 10s. Id., the balance (£39,347 19s. 6J.) being required for tho repair, maintenance, and caretaking of existing structures.

The value of works in hand at 30th June, 1920, and for which t'jndors had been accepted prior to 1st July, 1919, was £29 ,622 , as shmvn hereunder:—

VftluG, Expenditure duriag 1019-20.

1. Nainoi River at Tarriaro £ 5 , 6 0 0 £ 1 , 3 1 3 2. Barwon River at Euminbah 8,099 3,033 .3. Gwydir River at BooJooroo 7,061 2,280 4. Murrumbidgee Uiver at Narrandeni K,362 4013

All th(^ above were fully described in last year's report.

During tlu^ financial year tenders were accepted for the fo l lowing:—

/funffr Uiver at Arden JIa'L—The tender of Messrs. Hargrave and Cjldliam at £ 5 , 3 9 5 w a s accepted on 18th March, 1920. Work was ineomplcto at 30th June, and expenditure fnr the year totalled £ 9 3 5.S. 9d. The biddge consists of two timber truss spans of 91 feet each, with two 30 feet and one 28 feet plain beam spans—the roadway being 15 feet in the clear between kerb logs.

Jfunler River at Romm/ton'ti.—The tender oE Messrs. Hargrave and Coldham at £ 4 , 5 1 2 was accepted for this work on ISth Marcli, 1920, and to 30th June expenditure totalled £ 3 9 7 6s, 9(1., the wm-k being then incomplete. In addition to one tlm'jer truss span of 90 feet, there arc also five 30 feet und one 25 ft ot plain boaui apana—tho width of roadway being 15 feet.

Hunter River at Bdlirees.—Mr. J. J. M'Phillips' tender at £ 6 , 6 2 9 was accepted on 18th March, 1920, the year's expenditure being £ 8 0 3s. 3cl. The design provides for two 91 feet timber truss spans, M'ith five 30 feet and twg 2S foot plain beam spans—the roadway being 15 feet wide throughout.

L'lchhm Kiver a', Willanthry.—This bridge will consist of one timber truss span of 70 feet and four phiin beam spans, each 25 feat—^the width of the roadway beim; 15 feet. The tender oE Mr. C. A. Leahy was accepted on 6l,h November, 1919, for £ 3 , 1 3 0 , and to 30th June the expenditure totalled £ 1 , 2 8 8 17.S. 5d.

Ltichlan River at IH'.lstuu:.—^Mr. J. V. Jackson's tender at £ 3 , 1 2 6 10s. was accepted on 30th October, 1919, the value of completed work being £ 3 , 1 1 0 7s. lOd, Tho finished structure consists of one timber truss span of 70 ftet and two 28 feet plain beam spans—the road being 15 feet.

Munderoo Creek near Tnmharumba.—For this structure of two 28 feet plain beam spans, intended to serve the Soldiers' Settlement areas at Turabarumba, Mr, D . Livingstone was the successful tenderer at £ 6 7 2 , tho work being complete.

Works for wiiich tenders had been accepted prior to 1st July , 1919, fully described in last year's report, and which were complete<l during the year, are as follow :—

£ s. d. Abercrombic River, at Abercronibie . . . . . . . . . . . . . . . 5,715 17 8 liarwon River, at Collarendebri . . . . . . . . . . . . . . . . . . 6,608 10 2 Cudgegong River, at Belinafante. . . . . . . . . . . . . . . . . . 3,985 17 5 Lachlan River, at Murrin 3,710 17 10 Mivcquario Uiver, at Wellington 22,733 19 7 Mac(tuaric River, at Bathurst (Rankin's) . . . . „ . . . Final adjustment incomplete. Uarrington River, at Harrington . . . . . . . . . . . . . . . do do Mulwaree River, at Goulburn (Thome's) . . . . . . . . . do fl')

In addition to contract works mentioned, renewal of the undermentioned bridges was undertaken by day labour, the works being ineompleto at 30th June. A s shown in the report for year ended 30th June, 1919, these works became necessary owing to the destruction by flood of the original structures,and tho estimated cost in each case is exclusive of the value of timber aiid material salved from the old bridges.

Kiak River, a! A''i'a/i.—£3,120. This is a lowdevel structure, having two 30 feet and five 35 feet spans, the width of roadway being 15 feet.

Townmha Elver, nt Townmbn.— Also a lowdevel structure, having two 30 feet and six 35 feet spans, with 15 feet roadway. Estimated cost, £ 2 , 7 2 0 .

Tcwamba

58

Towamba River, at Netc J^uildingn.—A structure eoiisistiiig of three !)1 feet composite truss spans, with one 28 feet nml one 25 feet plain beam spatis, in being erected to replace that which was completely wiishcd away b y H'KHI. The replacing of the T'lwandia Bridge b y a low-lovel structure has permitted certain truss timbers and consitlerabbt quantities of ironwork to he mailv. available for use at New Buildings, where special appliances have been ]>rovi(lod for treating atrd straighti^ning the material which, after having betMi raiseil from the stream at Towamba, is hoisted to ihv b m k , loaded and transjxirted b y road to the s ite , a distance of l.'J miles. Apart from the actual value of the material so saved, but including thi^ cost of salvage, transportation, and preparation, the estimated cost of the work is £ 5 , 3 0 0 , and the expenditure to oOtli .June amounted to £ 9 8 5 , By the adoption of tiiis method of reconstruction, i t is anticipated a very considerable saving on the cost of an cntii-ely new structure will be made.

Day Labow Works connnenced prio/ to ]st July, 1 9 1 9 , and completed duriri.^ the financial yea/. Hoxdoiig Approach Bridges.—To SOtli June , 1919 ,an amount of £ 2 , 0 5 5 l i s , "nl. had bt^en expended

in erecting two bridges in approach to Howdong Bridge, Murray l l i v i T , one consisting of .seven 25 feet spans, the other of two 25 feet, and two 20 feet spans. These have been comjileted at a coat of £ 2 , 7 0 4 7s. 4d,

Coonamble, B'idge —Tiie conversion of the old truss bridge to one of plain beam (h;sign having nine 25 feet and two 30 feet spans, with IS feet roadway and 4 feet footway, was also completed during the year, the tobil cost of the work being £ 3 , 0 7 0 13s. lOJ.

The following proposed works were investigated :— 1. IMiddle Harbour (The Spit). 2. deorges Uiver. 3. Parramatta River at Rhodes. 4. Colt's Creek, road Bourke to Barringun. 5. li<jgau River at tJongolgon. 6. Culgoa River at Brenda. 7. Menindie Creek. 8. Pamamaroo Creek.

Numbers 1 to 4 are are proposals for new bridges, the balance being the renewals of existing structures.

Referring Ui No. 1 the survey having been completed borings were taken to test the foundations for piers and abutments for bridge with opening span affording ample clearance for barlnmr tratlic. I n all , 22 bores were put down to rock, the total length being 564 feet. Tho Minister having decided to refer the proposal to the Public Works Committee for consideration, plans and estimates are now being prepared for submission.

The initial expenditure to 30th June totaled £C46 18s. Id. In connection with the Georges River proposal, three sites, viz,, those at Taren Point, Tom Ugly'a

Point , and Kangaroo Point have been investigated. Tho design suggested for the two first-mentioned sites included an opening span, while that at

Kangaroo Point provides for a bridge at a high level. Surveys havo heen made and borings taken at all three positions, the total number of bores having been 42 and the aggregate depth below bed of river 1,280 feet.

Tho initial expenditure to 3t)th June had reached an amount of £ 1 , 3 6 1 2s. 4d. Preliminary designs and estimates having been submitted to the Minister i t has been decided that

full considerition uf the question must stand over for the present. Although such is the case, tho erection of this bridge is considered to be one of the most important matters taken into consideration during recent years while it is abundantly evident that present and prospective trathc requirements are such as to render imperative the provision of improved facilities with least possible delay.

A t the pres(^nt time traific crosses b y ferry at Dover Point or Taren Point, the working costs of which for the last three years have averaged £5,76(1 per annum. Added to tliis the interest chargeable on capital cost plus an amount requiretl for Sinking Fund for renewal in thirty j-ears, the total annual charges may be accepted at £ 6 , 6 8 7 , representing a capital value at 5 per cent, of £133 ,740 . W i t h the ever increasing cost of wages and niiterial, the cost of working the ferries must also increase, and consideration must be given to thz (question as to whether the service is sutHcient to meet traffic requirements.

On ordinary day.s it may be said to do so, but during week-end periods and holiday seasons the congestion oven now is such tliat delays up to two hours frequently occur. W i t h the increasing popularity of the Soutli Coast Tourist resorts and rapid development of the south side of the river in the vieinily of CronuUa existing diHicultics must become acute, tho disabilities more pronounced, and the need for early settlement of this question imperative.

Parramatta River at Rhodes.—Owing to the large and rapidly increasing traffic crossing b y ferry at Ryde . the question of a bridge has beyn considered and preliminary estimate prepared. Further investigation necessary for complete consideration is now in hand.

Plans are in hand for proposed bridges over Murray River at Tooleybuc, and Murruiubidgee River at Carrathool, while preliminary design and estimate have been prepared for Murray River at Mulwala and forwanied to the Victorian Government for concurrence previous to proceeding with preparation of plans.

Bridges—Maintenance. The sum pmvided from Revenue Vote for the repair, maintenance and carotaking of bridges, vit.,

£35 ,000 , has again proved to be insutlicent, these services accounting for an expenditure of £ 3 9 , 3 4 7 19s. 6d. , an excess of £ 4 , 3 4 7 19s, Od,

Taken

59

Taken in conjunction witli the fact that this is simply a repetition of previous years' experieneos, and further, that ratfs and prices of Lihour and material contituie to rise nipidiy, it will Iw realiserl that Kuhstant ia l increase must he made in the stmis providtvl in future for these services, otherwise the 384 National and Western Division IJridges. whicli, as a State Asset , may he valued at £2 ,400 ,000 , must fall into such condition as will (eventually call for an exceptionally heavy outlay.

Tn addition to 14.5 minor works of repair, the cost of which did not in any case exceed £ 3 0 0 , tho following were amongst the principal works of repair and painting carried out during the year :—

liricl a.

IiivorL41 Railway .... Mrtim llivor ('onilobolin Cowra Kerlws ' Itillalxing polygonum Swamp (lorowii ... Corowa Approach .. (:»iiitae.ii llmnpdon tWaggft) -Moama TluhVio fiilgaiidra • TlireillH* ' l»;il«cty lloga North llarham-Koonih-ook (.'ivmdon Haven fooueriiook McFarlaue Lcycester Creek Kiiwcett IJawdon lUu-iarumbi l':rina Creek l-'itr-roy Lmio Cove I'ii'hmond ISogi^ahri Pioneer Behiiore H in ton Tjiiskiiityre I'itnacrce Uppev l''albiook MuswullbrooV Ntiviulla Taniworth Twrosa

District. Cost.

Armidale •>

Bathurst I '

Bourke

Cootatniuulra

Diibbo ...

(Ioulburn

Hiiy Kompsey

>• Liamore

Metropolitan

Moree

Newcastle , K

(1

>I

H

Taniworth .

Wollongong.

444 74.3 ."29 HTl :J70

-.24 4S3 4r.6 :«).">

3!1»

:)4.')

so^i 310

,3(i:i 447 43.") ,31i 3Sti ;ilo 384 849 3fiS 515 Mli

,119 ,34,-i :)11 3U\ 406 41)li :m 400 528 41.'. .v,r. B72

Tiridge over Brogo River at Brogo:—Consideration having been given to the alternative proposals for renewal or the extensive repair of the old structure, tho latter was decided upon, the estimated cost being £1 ,400 , of which a sum of £J41 had W n expended to 30th June.

The work, which is being carried out by day labour, includes the renewal of the bulk of the truss timbers, including top and bottom chords, principals, and braces; also about 40 per cent, of the flood beams in trusses and iiuiiiy of the pier piles and braces. The cost of this work is a charge against Rublic Works i''iin(l Voti^

PYIIMONT BftiDoii:.

Following the practice of ])revious years I submit hereunder a statement showing in .letail the operations of the swing span, togctihcr with cost thcroof ; also the cost of l ighting :—

Operating Swing Span— Number of openings . . . . . . . . . ... . . . . . . 4,824 B.T.U, con.sumption 3,877 Cost of current ... . . . . . . . . , . . . . . . ... £1G 3s. Id. Number of vessels passed through . . . ... . . . ... . . . ... 7,172

Lighting Bridge— Street incandescent lamp, hours . . . . . . . . . . . . ... . . . 70,230 B.T,U. consumption 31,817 Cost £ 1 3 2 U s . r>d. OiUce incandescent lamp, liours . . . . . . . . . . . . ... . . . 22,798 B.T.U. consumption.. . . . . . . . . . . . . . ... . . . . . . 1,013 Cost £ 4 4s. 5d.

Total for Operating and Lighting— B.T .U . consumption.. . Cost

. . . 36,707 £ 1 5 2 18s. l i d .

Tt might be added that since 1st July, 1902, the span has been operated on 113,167 occasions to permit the passing of 181,666 vessels, the cost of electric current for the v/hole period Ijeing £ 3 2 9 6s. 8d,, while for the same period the cost of l ighting has totalled £ 2 , 8 5 8 l i s . U d .

Roads.

60 : i

Roads. '1 No increase in the mileage of minor or Western Division schedule roads has occurred; and aUhough .

the vote was increased by £ 5 0 0 to £12,-1:00, this amount proved to be insufficient for requirenients. j The total amount provided from Consolidated Revenue Fund for roads, £1G,000—including £ 3 , 2 0 0 j

for the national roads Edith (ut'a Jenolan Caves) lo Hampton, and Jindabyne to Kosciusko—lias been j exceeded to the extent ol £ 2 , 5 6 2 , yet many desirable works have had to stand over,

F iom Public Works Fund, expenditure was conlined almo.^t entirely to the national roads above- • mentioned, for wbiLsh sums totalling £ 1 , 0 0 0 were pr-ividGiI, the amount expended thereon bsing j £ 1 , 2 3 4 15s, l i d .

Tiie work ctrried out for the Department of Lands in the construction of Closer Settlement vontU has accounted for a contract expenditure of £ 1 , 0 2 6 16s. 6d., an additional amount of £ 1 1 , 2 7 6 8s. lOd. Ix'ing expended on the construction of roads hy day labour tlirough Soldiers' Settlements.

The continuation of road construction works at the Coast Hospital involved an outlay of £ 6 , 3 5 4 , a further amount of £(1,222 being expended on tlic completion of Bunnerong-road mentioned in mv last report.

The work of constructing the road from Botany to Rockdale along Lady Robinson's Beach, wliich , was commenced in tho previous year, has accounted for a further expenditure of £ 9 , 4 8 0 l i s . l i d . , the i work being incomplete at 30tli June. i

I n order to provide work for unemployed, the construction of jiortion of the Liveipool-Canipbell- , town Road has been put in hand, and the sum of £!),S73 19s. 6d. expended prior to the end of the year, the work being still in hand.

In connection witli the reconstruction of the Parramatta-road, west of Ashfield, funds to tho extent of £ 5 7 , 0 0 0 are being provided by the Local Government Department. The expenditure to 30th j dune amounted to £ 1 , 7 6 3 i7 s . 9d. A s stated in the earlier part of this report, the expenditure by the Branch of funds contributefl by other departments has amounted to £ 15,996 9s. Id.

Eerries. The amount made available for expenditure on repair, maintenance, and working of the National

Ferries has again proved to be inadequate, this being to an extent due to the wage^ increase granted by 1 the Arbitration Court. The amount expended to 30th June totalled £ 3 3 , 8 9 3 12s. Od., exceeding that provided by £ 8 , 8 9 3 12s. 6d. j

Expenditure from Public Works Fund totalled £ 6 1 8 15s. 8d., incurred in construction of road in I approach to the Nyah Ferry, Murray River, and the final charges in connection with the jirovision of thej relief punt for Sydney Harbour and Georges River. A t the request of the Victorian Government, thoi establishment of a National Ferry at Euston, on the Murray River, has been decided upon, and on 2 i t l i June a contract for construction of a hand-geared punt, with landing stages, was let to Messrs Felshowand Burkett for the sum of £1 ,140 , the work being carried out to plansand M p e c i l i c a t i o n s prepared in this State, and under the supervision of oltieers of this branch. The cimstruction of ajiproaches will l>o' carried out by day labour as was done at Nyah , the estimated cost being £ 6 3 0 . The punt will be of' timber, 58 feet 9 inches long over transoms, 15 feet moulded width, and with a moulded depth of 3 feet 6 inches amidships.

Consideration lias also been given to tlie establishment of a similar service at Barmah, the proposal i having been favourably reported upon hy the Chief Engineer for Public W o r k s , Department of Ports and Harlxturs, Victoria, in conjunction with myself. I n this case the purchase of the existing privately • controlled ferry is suggested, but finality had not been reached at 30th June.

In order to cope with the ever increasing traffic crossing Georges River Ferries, approval wa? given i for the construction of a larger steam-driven punt with steel hull, having dimensions as shown hereunder :—•

Length, 128 feet. Moulded width, 36 feet. ;

„ depth at side of mid.ship frame, 8 feet 5 inches. W i d t h of carriage-way, 21 feet 6 inches.

Tenders were unsuccessfully invited for the work prior to 30th June, since wduch time tho offer o£| the Walsh Island Dockyar<t at £17 ,946 has been accepted. The punt will be just twice the length of thoi larger of the two vessels at present at Dover Point, the respoetive vehicle-carrying capacitie.s being 'Ji anrl J 1 2 . The new punt will also accommodate 2 0 0 foot passengers. Compared with existing service at Dover j Point, it may be stated that whereas in a period of one hour the two punts will shift 60 vehicles and 4 0 0 ' foot passengers, these numbers will bc increased to 144 and 1,000 respectively when tho new vessel has been commi&sionerl. j

Public Watering Places. j Tiie sum of £ 4 , 0 0 0 , made available for the maintenance and carctaking of the Public WateringI

Places in the Western Division, has again proved to be totally inadequate. AUhough many very necessary works have been allowed to stand over, actual expenditure totalled

£ 5 , 0 6 5 from Revenue Vote. In addition, the sum of £ 2 , 0 0 0 has been provided from Treasurer's Advance Account for t h i :

purpose of improving the condition of public watering places near Broken Hil l , and on the road Cobar-; to Wilcannia. A further amount of £ 1 , 5 0 0 has been similarly provided for relief work.s at Cobar and! Canbelego, the construction of a new tank at Elouera and the deepening of the Canbelego tank beinj^j undertaken ; and, as i t will be necessary to cover these amounts on the 1920-21 Revenue Estimates, a j largely-increased vote is essential,

At tent ion I

6 1

Government

Attent ion has from time to timo been called to tho impossibility of properly maintaining t h e s e works with the small amount of money made available from year to year ; and, in connection with r e p i e s e n t J i t i o n s recently made t o the ^linist^^r by a deputation of western landholders requesting removal of control from this Department, I pointeil out that i n the Western Division the public watering places are of :'ven greater inqiortance tlian the roads in more favoui-ed parts of the State, the supply of water at convotnent distances being essential for travelling s t o c k , and to permit the transport of wool and produce to rail. Admittedly tho present condition of many of the works is extre-.nely unsatisfactory, a n d not such as s h o u l d be allowed to continue where such a valuable asset to the State a n d Commonwealth is concerned, and I desire t o again draw attention to t h e absolute necessity for better provision b e i n g m a d e for etHcient nuiintenance.

Tenders liave again been unsuccesijfully invited for the construclion of tanks at Tongowoko, Yantara, and Mount Wood, in the far north-west , the r e c e n t prolonged drtjught rendering it quite iriqjossible to proceed. Tho conditions being now r e p > r t e d to bg favourable, f iesh tenders a r e being called. Tho provision of the.se additional works is very necessary, and every effort will be made to arrange foi' their completion during current year.

The establishment of a public watering place at Trida siding, on the Condobolin to IJroken Hill Railway, having been approve^d, arrangements for testing by boring were p u t i n h a n d , b u t the work bad not actually been started a t 30th J u n e . Expenditure f r o m Public Works Fund Vote for public watering places totalled £ ' 1 9 7 9 s . 4d.

Local Government Works. Tlie Main Roads Vote was again distributed amongst the shires and municipalities, a n d regular

inspections of main mads have been inaintAined, it iMMng here explained that, although tho works aro carried out by the shire engineers to a standard specification. Departmental ofKcers exercise a general oversight, 4'nsuring that works undertaken in expenditure of the grant are completed in ar-cordance with reriuiremenis, this duty calling for greater tact and more careful handling than would be t h e case i f they were dealing directly with contractors.

The usual i i K p i i r i c s into l o a n a]jplications, boundary work disputes, and other matters calling for investigation under the provisions of tlie iiOcal Government Act , have been conducted for the Local Oovernmont Department by otlicers of this Rranch.

In closing this Report, and i n again recording appreciation of the work of the stiff under my control, I desire to mention the severe lo.ss to the Department caused by the untimely death of the late Mr. Norman Grant, who, while in the exercise of his duties as supervising engineer, Cootamundra district, was killed in a motor accident on Sth June. After a service extending over a period of thirty years Mr. Grant had only a finv months ])revious to his death taken u p t l i R duties at Cootamundra, and in h i s administration of t h i s a n d other inqnirtant districts had prov(;d biiiisclf a capable a n d efficient otlleer, and ime held in t h e highest e s t e e m by all. Tho Department lias, indeed, suffered heavy loss, a n d .Ml-. Grant's death h a s left a vacancy most difficult t o 611.

P E R C Y A L L A N , M.Inst.C.E., M.Am.Soc.C.E., Chief Engineer for National and Local Government Works.

Under Seeretiiry, Departnient of Public Works. l-Jlh September, 1920.

G2

Government Architect's Branch. Aunual Ueport for year 1919-20.

Sir, 14th September, 1920. I have the honor to submit a report of the operations of tho Government Architect's Branch

for tiie year ending 30th June, 1920. Tho certilicatfil expenditure for the year is set forth hereunder, and for purposes of comparison

tho expenditure for each of the tliree preceding years is sclieduled, as follows :—

1910-17. I'JIT-IS. 19IS-1Q. l!tl9-20.

Special Deposits Federal Works Other Departnieiita... Kesimit'ii PropcrtieB . Publii- Works Fund . 'J'reasurer'a Advance.

£ s. d. £ a. d. £ s. d. £ fl. d. 3-24,0(8 0 H 219,012 13 74,006 4 0 56,250 13 3 35,424 6 / ) 36,056 13 38,2{i2 7 11 45,16S» S 3 4,069 S 7 4,09S 3 1 1,862 15 a 21,871 19 8

10 17 a 24,401 4 3 6,312 f) 5

15,722 1 6 3S,.394 17 3 54,263 5 0 116,984 13 U 331 0 2 350 1 5 24fJ n 4 2,374 11 8

95,141 7 3 61,707 14 1 C5.031 15 n 40,585 7 11 95,141 58 10 2 1,040 7 8 5,149 1 5

Totals £; 474,756 6 4 • 360,278 12 10 257,114 11 9 •294,737 1 6

Generally,—The more important buildings and work.s completed during the year, or nearing completion at its close are :—Central Railway Station, completion; Coast Hospital, three new pavilions, new dining hall (for military patients), recreation hall (for Red Cross), and cold storage accommodation ; Waterfall Sanatorium, new dining and recreation balls, additions to nurses' quarters ; Royal South Sydney Hospital, additions and outpatients' department and clinic ; Rookwood State Hospital , new operating theatre ; Rarliamentary Buildings, additional accommodation ; Liverpool State Hospital , new operating theatre; Kepean Cottage Hospital , additicms; Sydney Hospital, new lecture theatre: Dacey Garden Suburb, new police station ; IJniversity, teachers' training college ; Broughton Hall, three new ward blocks, and Medical Superintendent's residence; Maternity Homes at Burwood and Ashfield ; installation of heating and hot water systems ; storili/ing, cooking, and refrigerating plants, and also electric l ighting, beating, and ventilating systems, and electric lifts, throughout a large number of buildings.

I n the Country Districts the following are the more important buildings completed, or nearly so , during the year :—Broken Hill Sanatorium ; Burrangoiig Hospital, additions ; Orange Hospital, isolation block ; Leeton Hospital, isolation block ; Goulburn Hospital, operating block ; Crookwel! District Hospital , operating block; Queanbeyan District Hospital , isolation block; Raleigh District Hospital, ist)hition block; Grafton Hospital, nurses' quarters: Lismore Hiwpital, matt'rnity wards; Maitland Hospital , extensive repairs ; Stockton Mental Hospital, additional wards ; Wallsend Mining Hospital , additions ; Gunnedah Hospital, new building and nurses'quarters; Wagga Wagga Lock-up, addi t ions; Binalong Police Station, new building; Maude Police Station, new bui ld ing; BoUbrook Police S t a t i o n ; and Newcastle Explosives Magazine.

A s in previous years, officers of this branch have supervised the erection of a large number of buildings in the country districts for the Department of Education.

Central Railway Station.—The structural work in connection with the tower has been completed, tho eastern wing is almost completed and it is anticipated that the whole building will be finished in about four months from this date. The time for this work has been extended, owing to considerable alterations and additional works re:iuired in the eastern wing to meet the rocpnrements of the Railway Commissioners in providing additional dining rooms, kitchen, sculleries, kc, on the first floor.

The Coast Hospital.—This institution has been extended by the completion of three additional modern pavilions, with accommodation for forty-two beds in each. These buildings form part of the scheme adopted for ultimately rebuilding this hospital on modern lines, and so replacing the temporary buildings, now obsolete, and, in many cases, beyond reasonable repair.

The dininjj hall ereeted for the uae of military patients at a cost of £ 3 , 8 7 2 los . is now to be cenverted into store and administrative otHc33, and the recreation hall ersctod for tho Red Cross Society is being utiliacd as a dining room for nurses.

Waterfall Ifospita^.~At thi^ institution the dining and recreation halls for male and female patients, and additions to nurses' quarter.^, have been completed, at a cost of £ 1 2 , 8 4 3 4s. 5d.

Royal VisU.—Tho visit of His Royal Highness the Pi inco of Wales occasioned for a time much activity in preparing and carrying out schemes of decorations and iUuir.inations for Farm Cave, Macquarie-streot, Queen's square, and Bridge-street.

Univcrsiiy—Teach-.rs' Training College. — For tho Department of Education, and within the precincts of the Universitv, the first portion of this buihling was completed, the total cost, exclusive o f foundations previously built, being £ 5 9 , 8 0 4 . The building is three stories in height, the elevations having O.K. brick facings with stone dressings. The fioors throughout are of reinforced concrete, covered with tallow-wood, except in the corridors, lavatories, and staircases, where tosselated tiles are used. The staircases are of concrete, with Sicilian marble strings, risers, treads and landings, and wrought iron handrails and balustrades. Ample lavatory and sanitary accommodation on each floor is provided, electric . ight IS fitted throughout, and efficient systems of ventilation and vacuum cleaning form an important part of the whole scheme.

Broughton .

63

Jitoughton Ilaii —This private property, pui-chosod hy the Government, has been in use fnr some time lis a soUJier.-* mental bospital, and within tlio spacious grounds have Ixvn erected the following liuihlings :—BliM-ks 1 and 2 ai-e two stories in height, and are complete with dormitori(!s, single rooms, dining nMim. and a l l the necessary equipment of modein mentjil hospitals. Electric lighting, hot water service, anil ('(fieient ventilaticm are well considered details of both buildingc The completed cost amountwl to £ 1 6 , 1 1 0 . The Medical .Superintendent's residence - a building of two storieii —has also been erected. The cost ot same amounting to £2 .168 ,

A one-stoi ieJ block. No, 4, has been erected within tlic Callan Park Hospital Grounds in an isolated position. I t contains dorndtories and single bed rooms, also a large dining ro'^m and recreation hall, while ample provision has been maile for sanitary, lavatory, and kitclicn accommodation. The completed coat amounted to £9,")28.

Maternily Homes.—Eor the purpose of providing maternity homes the (iovcrnraent purchased two private dwellings in spacious grounds, v i z : —

" Montrose,"' a t Hurwood, and " Fernleigli," at A.sbfield. The former is to be used a s a maternity hospital, and the latter as a rest home, and both buihlings have been considerably altered and renovate<l, electric light and hot water services have been installed in both proi»erties.

Goulburn HospiUil^i)peratlng Block.-'\ XiQw and modern operating block, comprising operating anaesthetic, sterilizing, and dressing rooms with ne<Tssary conveniences, has recently been completed, the structure being of britrk, with slate roof and solid floors. Electric light to this block together with an ol'.'ctric lift to the main building has been installed, the whole cost incuried lieing £ 2 , 3 8 3 5s.

Crookwell Hospital—Operating Block, X-c—In connection with this hospital an operating block and additional accommodation for nurses has bi'eii cariied out by day labour at h tost of £ 2 , 0 1 4 8s. The new structures are of brick with 6bro-cenient roofing. The whole providing a valuable adjunct to tho hoBiiitftI,

Queanbeyan I/o.ipilaK—To meet the needs of the hospital a new isolation bloek has been added to the premises. The building is of wood construction generally, with libro cement and plaster lining.s internally, and consists of four wards, a duty room, and the newssary waiiitary arrangements. A n oxi)endituro of £l, . ' i24 15.s. Id. was involved in carrying out this work.

linh-igh DiMi-i'i. Hospital. -To this hospital has been added an isolation block, a structure having foundation walling of brick and \\m\\ framed \valls, the latter lined internally wdtb fibro-cenient srieeting. The niof covering is of asbestos slates. Pn)vision was n u d e for four single wards, a duty room and • sanitJiry annexes, at a cost of £ 1 , 6 9 3 . i

K'unpsey Hospita'.-~\n isolation blo'jk similar in character to that for Raleigh Hospital has been erected at Kempsey, at a cost of £ 8 5 0 .

Jhirrangong Hospital. - I n connection with this hospitU a new isolation block is nearing com]>letion and (Comprises four single wards, a duty ro<im, spacious verandahs, sanitary annexoa, and boiler house. I I'he building is a wooil structure. The cost when completed will Ix- about £ 1 , 9 1 0 .

In .addition to tho erection of an isobition block a re-modelling of the kitchen has been carried out at this hospital and a new laundry block erected. The kitchen blo.-k is of brick and the laundry blwk of wui«l con.sti-i ictioii , t h e c o s t involved bein^ £ 1 , 7 1 9 lo s . 9d.

Leeton Hospital.—To this hospital a new isolation block, a laundry with man's room, together with a small morgue, have been aihled. The buildings are of wood construction. The cost of tliis work was £ 2 , 3 5 2 .

('b-ajiy' //().'*;);'/'()./.--To meet the requirements of this } io"pi ta l an isolation bIo<-k has recently been completed. In addition to tlm four single w a r d s , duty room, and sanitary arrangements provided, a changing room is made available foi- nurs"s. . \mple verandahs are arrangetl for convenience of patients and ftr service. A n expenditure of £ 2 , 9 2 0 8s, 6d. has been incurrod in the completion of this work.

Gra/lon Hospital—A building, two stories in height, and constructed of brick with a tiled roof has been erected at Giafton to accommodate the nursing .italf, and all necessary adjuncts required fnr the comfort and convenience of the nurses have b-'en provided for. Th" work was carried out at a cost of £ 1 , 9 4 0 Ifis. 3d.

Litmore /A)<;j/(a'. —Provision has been m:ide at Lismore for the treatment of maternity cases, for which purpose a buililing of brick construction has Ix'en cariied out giving tho rc'iuired ward and other accommodation. This w(U'k cost £ 1 , 9 4 0 Ifis. 3d.

Broken Hill Sanatorinin.—In the area adjoining the General Hospital at Broken Hill a Sanatorium has just been er<\'ted at the cost ot £ 8 , 7 4 0 3.s. Future extension has been provided for and the scheme when completed will form a valuable addition to the Hospital requirement^ of the district. The (lortion of building recently completed includes a Central or Administrative Block in which is Bi tuated the male and female patients dining rooms, the kitchen with it'll necessary adjuncts, a:id four (4) bedrooms for the nursing stall.

On the north and south sides of the Ail.ninistrative portio)i of the building arc situatprl the ^yards for m.ale and female patients, each forming only a jwrtion of the entire scheme. These Warrls are approached from the .\duiinistrative Section by means of covered ways which continue fi-om tho Wards to the Isolated Sanitsiry Annexes.

Commodious verandahs have lieen provided throughout.

Provision of a Boiler House for heating arrangements has IHMMI nude. Tiie building gener.tUy is of wood construction supported on brick piers, the internal faces of walls

Ixiing lined with fibrous plaster. WallsenfI Mining fIo!ipifa\-Tho additional aecommodalion to this HospiUil was started in the

pn^vious year and w a s completed in tlie year covered by this report. Tht^ to'al expenditure on this work amounted to £ 1 , 4 9 2 I.'H. 3d.

Kurri

64.

Awrri Kurri Hospital.—The somewhat extensive additions now in progress at this Hospital are ncaring completion and consist of extensions to the male and female AV'ard wings to provide further accommodation for 11 beds, and the provision of a new Ward, making in all an increased aceonnnodation for eighteen beds. Spacious verandahs to each of the new AVard extensions form part of work. The remodelling of the sanitary arrangements has brought the Sanitary Annexes into line with modern requirements. The dining room for the staff has been extended considerably to meet the present needs.

The contract price for this work is £ 2 , 3 7 0 . Cessnock I/ospilal.—A new Ivitclien Block and Operating Theatre, together with all accessories are

in course of erection in connection with this Hospital and are now approaching completion. Both these buildings are brick structures. Adjacent to the Operating Room are X - R a y and Dark Room. The contract amount is £ 2 , 9 0 0 .

Gunnedah Hospital.—In connection with this Institution a new scheme has been carried into effect to replace the old Hospital buildings, which, with the exception of the wooden Isolation building were obsolete.

The Administrative Section is Hanked on the sides by AVards for male and female patients tor which provision has been made for future extension. AA'ide verandahs form a feature of this Hospital.

Situated at the rear of the central or Administrative Section, is the kitchen block, approached therefrom by means of a covered way, on one side of which are placed rooms for storage of l inen and patients clothes and for X-Ray purposes, the operating room and adjuncts are at the rear of male ward, and are in direct connection with the main building.

Laundry and morgue requirements form part of the scheme. The buildings were constructed on a system somewhat new to hospital work, the walls being of

steel framing and metal lathing, cement rendered on all faces, internally finishing but 2-inch thick and externally 3-inch thick. A treatment in rough cast has been applied to external surfaces.

Concrete foundations support the superstructures. Fibro-cement has been used throughout for ceilings. A suitable ctilour scheme in a washable distemper has been ajiplied to the walla and ceilings.

In addition to the above, a building has been erected to accommodate the Matron and Nursing Staff. TljB building is of stud and weatherboard construction, lined internally with libro-cement sheeting, and covered with tiles to correspond with other roofing.

In connection with the whole scheme modem drainage arrangements on the septic tank system have been installed. The whole cost of this work, inclusive of hot water services and sterilizing plant, amounted to £ 7 , 4 5 6 6s. 5d.

Binalong Police Station.—New police buddings, comprising ofhcial, residential, and cell accommodation, with detached modern stables, have been erected at tho co.st of £ 2 , 0 9 4 Is . 6d.

Maude Police Station.—A new building, constructed of timber generally, has recently been erected, providing the necessary accommodation for a police station, aiid involving an expenditure of £ 1 , 4 4 4 2s.

Bellbrook Police Station.—At the cost of £ 1 , 6 5 0 a new building for police purposes has been completed, constructed of wood generally, with asbestos slate roof covering.

Newcastle Club.—In connection with the Newcastle Ho.spital the matter of increased accommodation for nurses became pres.sing, and, as the present premises were somewhat limited in area and would eventually be wholly required for the aecommodntion of patients, it was thought advisable to look for premises elsewhere to house the nursing stafl.

The premises of the Newcast le Club, adjacent to the Hospital site, were suggested as a de.sirable location for tho required quarters, and arrangements were entered into between the Government and Club authorities, whereby these premises were taken over and adapted to the use of nurses' quarters, and a new site was acquired for Club purposes in lieu of that taken over by the Government authorities, and arrangements wore concluded for the erection of a new building for the Club.

A t the request of the Club Committee, plans and specification were prepared for tho new building by Messrs. Spain, Cosh and Dods, architects, the supervision of the work, and the preparation of the details devolving upon the ollicers of this Branch.

Tho work in hand, comprising the greater portion of a seherao to bo completed in the future, w i l l embody all the requirements of a modern club.

The style of architecture adopted is that of the Georgian Period, the structure being of brick and stone, with a roof of tiles.

Circular flights of steps lead from the Newcomon-strcet entrance to the stone porch, which forms the central feature of the complete scheme.

The contract amount for the work in hand is £ 1 4 , 9 0 0 . Newcastle Explosives Magazines.—This work, is a structure in biickwork, specially designed with a

view to the safe handling and storage of explosives. The cost of the work was £ 1 , 9 2 0 . Wogga W'igga Ijock-Up.—The demolition of the old gaol building and the erection of additional

cells, the extension of prisoners exercise yarda, and the re-arrangement of sanitary fittings were carried out at the cost of £ 1 , 4 3 7 .

Other buildings and extensions of importance have been carried out in connection with a large number of Government buildings and hospitals throughout the State, involving a large expenditure.

Inspections, VaUiations, <(^c.—At the inst ' ince of the Police Department several inspections were made ami meiisured drawings suppl;ed of city hotel premises. Inspections were also made and Reports furnished in regard to Soldiers' Settlements.

I n addition a number of valuations were made, and Reports submitted in regard to properties under consideration for resumption by the Crown.

la

65

In connection witli the Fair Rents Court proceedings, two officers o£ this Branch, partly associated with tho Department of Attorney-General and Justice, made inspections and submitted skoteh (dans an<l valuations of 530 residential properties throughout the city and suburbs of Sydney, and attended tho meetings of the Court.

Drawing Office.—The work of preparing plans and specifications fiir extending and improving the hospital buildings throughout the State fully maintains its premier position. The list of hospitals contiiiucd in the attached schedule shows considerable expansion and indicates the forward jxjlicy of the l^ojiartment of Public Heal th as well as tho calls made for ever-incraising activity on the part of the professional staff of the Branch.

Police buildings are well represented in the work of tho office. Working drawings and sketches for now structures were numerous, while additions and improvements to those already in existence received a good deal of attention.

Numerous detail <lrawings have been prepared in connection with tho Newcastle Club, tho Central Rai lway Station, and the Training College for Teachers.

To assist in the work of repatriation sovei-al types of pig and dairy farms, together with cottage residences, have Ixien designed suitable for erection at returned soldiers' settlements. A temporary nmseum for the housing of war relics has also been planned. Tho latter building is proposed to be erected on the National Library site.

Court houses, gaols, mental and special hospitals, as well as public buildings generally, have all added their <piota to the work of preparing sketches, working drawings, details, and specifications,

Among drawings of a special nature the following may be mentioned :— Perspectives—

Canowindra Hospital. Gloucester Hospital, National A r t Gallery—South-cast View. Tamworth Hospital. Township of Wyalong—Bird's-eye View.

Memorials— Mascot Soldiers' Memorial. I lurlstone Soldiers' Mei iKuia l . Khig JLdward V I I Memorial. Ijord Howe Island Soldiers' Memorial.

Honour Rolls— , I)epartment of Local Government Premier's Department. Registrar General's Department. Tieasurv. Public Works.

Amongst the building operations for which working drawings a n d specifications have been or were })eing prepared during the year, several outstanding instances might be brought under notice, aa follows :—

Western Suburbs Infectious Diseases Hospital.—This group of buildings is proposed to bc erected within the grounds of the Rookwood State Hospital and Asylum at Lidcoinbe, and will consist of the following blocks:—

Four ward pavilions giving accommodation for sixty-four beds. Nurses' quarters (for twenty-five nurses). Administrative block. Observation ward. Kitchen and laundry blocks. Morgue. Temporary iioiler house.

These builditig.s will be. of brick with tiled roofs. They are so planned and arranged as to form a complete and up-to-date hospital for the treatment of infectious diseases. The estimated cost of the buildings comprising the completed scheme is £ 7 1 , 2 8 0 . I t is proposed, however, to erect only first portions of some of the blocks in the lieginning, at an estimated cost of £ 5 9 , 2 5 0 .

Newcastle Hospital—A'hninistrative Block.—The present plans are a modification of an earlier scheme, the object of the alteration being to increase the ward accommodation This now provides for forty-two beds as against twenty-eight in the superseded scheme. The building will be four stories in height. The front will be of stone, tho remaining walls of brick. The cost is estimated at about £47 ,000 .

Wagga Wagga Lands Office—New Building.—Working drawings are now being prepared for a large building of brick, having tiled roof. The accommodation to be provided will consist of an office, 70 feet by 52 feet, for the drafting and clerical staff's ; separate rooms, each 20 feet 6 inches by 15 fe<!t 6 inches, for tho Chairman and the District Surveyor's use ; two rooms, each 23 feet 6 inches by 15 feet 6 inches, ono of whltdi will be used by the Surveyor, while the other will be a spare room for ofiieers requiring casual accommmlation. A large strong room, also a helio and plan-mounting room and conveniences are providiMl. The cost is estimated at £ 1 2 , 2 0 5 .

Dental Hospital, Sydney—This building has sustainefi considerable damage by fire. Working drawings havo now been prepared for general restoration, for re arrangeiyent of the interior, and for additions. These latter will consist of a lecture hal l and a n office for the Dental Board, forming portion of the second floor ; of an extensive mechanical room on the third floor ; a n d of a new fourth floor, in which the caretaker's quarters will be Irjcated. The whole scheme is estimated to cost £10 ,700 .

Hoapict • 7 3 8 7 — E

65

Hospice jvr Comumptiv'is, Little Bay.—The coiupletc scheme comprises four sepai'nfco paviliuiis fcogether with kitchen and boiler-house blocks.

Each pavilion has been designed to aeconnnodat.^ lifty beds. Si t t ing rooms with lounge verandalis are situated at each end of pavilions. Tho detached sanitary annexes to each pavilion are approached fi'om the wards by covered ways. Administrative rooms are hxrated centrally in each pavilion. Tho kitchen and boiler-house block i s placed to provide easy access to each pavilion. The .structures will be of brickwork generally. Tho complete scheme is estimated to cost about £42,.500. Tho estimated cost of the 2^ortion now in hand is £ 1 5 , 0 0 0 .

Mothers and Babies' Welfare Centre, WooUoomooloo.—This somewhat noteworthy class of institution now in course of erection has been designed to meet the needs of the chiUUife and "the mothers of the community, and is a building of two storeys comprising four sections. The kindergarten and day-nui-sing sections are situated on the ground iloor, the former including a circle rottm 45 feet by ,"J0 feet, a babies' room and the necessary play area, and the latter's sleeping rooms, toddlers' rwnn, and a room for isolation purposes.

Associated with these sections is a more spacious open-air play area located on th(> first floor level, a| proached by moans of a staircase common to botli. On the fii-st floor is situated the cHnic .secition. approached by a separate entrance from tho high-level street, and devoted to the provision of medical attention to mothers and babies.

l a close proximity to the clinic rooms, and also having a separate entrance, is the milk depdt, where applicants may procure milk which has passed through the process of sterilization.

The building is of brick, treated externally in rough cast, and will present a pleasing appearance.

The cost involved in this work will amount to about £10 ,000 .

Stockton Mental Hospital.—'The working drawings for additions to this institution provide for a new ward, dining room, also a day room and dormitory, amd other necessary accommodation, at an estimated cost of £ 8 , 2 5 0 .

Amongst the many schemes for which sketch plans have been prepared during the ye^r several aro worthy of special mention owing to their magnitude and importance.

Manhj Hospital—Nmc Buildings.—This is a scheme for a complete hospital to be located on an entirely new site at the head of Darley-road, a site acquired from the area devoted to quarantine purposes. Such scheme comprises- main ward blocks, with administrative, operating, kitchen, laundry, and isolation blocks, also nurses' and male statl' quarters, as well sis a morgue, boiler-house^ and covered ways. The main ward blocks and nurses' quarter-s will eacli bo two stories in height. Provision is made for the accommodation of 1G8 patients in the main ward Hocks and 20 patients in the isolation block. The estimated cost of the whole is £ 1 0 9 , 5 5 0 . I t is proposed, however, to erect at first only one of the ward pavilions and portion of the nurses' quarters, thereby reducing tho initial cost to £ 7 3 , 7 4 0 .

Uoya^ Prince Alfred Hospital— Venereal Clinic.—Sketches have been prepared for a brick building with stone dressings, two stories in height. The main entrance, in the centre of tho facade, gives access to the pati'tnts' waiting room—a large hall, 35 feet 6 inches x 28 feet 6 inches. The ground floor also provides the doctors' rooms, consulting rooms, patients' rooms, and othces, ttc, Tho first floor will contain the kitchen, dining room, operating room, si.sters' room, ciiiiical room, and two wards for women, each oi id bedn. E.ttensivo veranthihs and^balconies aro carried around the buildings. The estimated cost is £ 2 9 , 2 0 0 .

Wotnen's Hospital Crown Street—Addition.—The addition will consist t)f a three-storey block er.ctcd to the south of tlr; existing building, and will iiccomniodatfi fift-v new beds. The estimated cost is £ 1 9 , 1 0 0 .

National Arl Ga^lenj—A'iditions.—Alternitive sketch plans for an eastern extension of four floors, including the basemf nt, have been pi-eparcd. Tn either sche:un two picture galleries are placed on tin; first floor, while the biard room, oiHces, storage and other accommodation will be provided on the floors below. The extension will harmonize with the rest of the building and form a satisfactory composition when the total scheme is completed. Tho smaller of tUc. two schemes is estimated at £ 3 1 , 8 5 0 .

N o estimat*; has lieen jirepared for the larger scheme. HmU'i Dp]>a'tment UnVdinfia—dfA^rAiojis.—Sketches Uiv extensive additions have been prepared

luflU'r consultation with the meditja! and clerical otlicers in (dwirge. The a(lditio;:s will consist of an 8<> fleet extension along Ma-cjuarie-sureet and a now wing t.i the west extendijig 80 feet from Macijuarie-stnset.

The extension will have four floors and a basement. A n electric lift; is included in the scheme, «iirrou:nle<l hy a i-oinforeed nfciircaw, wliile all floors in the v baildingi will be o£ fire-proof construction.

Xho ustiniated coat is £ 2 8 , 0 0 0 . litorUeet Mtnld J[.i»pi(al^Pa::ilim {.»• Afa'en.—A sketch ])lan haq been prpparod for .-i new brick

)invili(m, two .storie.i in hei';ht. The projiOMcd building will be practically idcnlical with three pavilions already existing. The i^stimated cost is £2O,5U0.

King Edward VH iTiemoriaL—'Uhe n\pmovia\ consists of tho grouping of the existing statues of C^iiecn Victoria and tho Prbicf* Contort with the proposed equestrian statue of King Edward V I I .

The pedestals supp-jitiiig the statues will be of granite and the triple archway and genernl arcliitectural siirrf.und of Sydney sjuidstoni', tiic whole surmounted on a granite base.

The; ^pace forming tne architectural setiting will have a trachyte pavement and arrangement of

special II iwer plots. ,V bal'is'rad: an:l .st.- ps with or:ia.msutal la-np standards will mirk the street a l ignment The scheme wiil fornt an impro-ssivo architectural feature closing the vistrt of Mncquarie-street

h«iking. towanls the south, and will supply an important moiiu'nental ;fi-oup that will be an orntunent to

MCUEDUI-B

67

SciiKDiLE sJiowiiig the most important works for which sketches, working drawings, copies, details, estimates and specifications have been prepared :—•

Hospitals—.

Hallina Hospital—Additions. Bathurst District Hospital—Isolation Block.

„ „ „ licmodelling, itc. licrriina „ Isolation Block. Jiombala Hospital—Xew Buildings. Brewarrina District Hospitid—Isolation ami Maternity Blocks. Byron Bay Hospita l—New Buildings. Canowintlra Hospital—-Now Buildings. Canterbury and Bankstown District Memorial Hospi ta l—New Buildings. Carcoar Hospital—Remodelling. Coast Hospital—Cokl .Storage I'.uilding.

„ Conversion of Dining Hall into Administrative Quarters. „ Painting, re[)airs, &c.

Cobar Hospital—Isolation Block. CoflTs Harbour Hospital—'Isolation Block. Coonamble Hospital—Ailditions and Isolation Block.

„ New Buildings. Cowra District Hospital—Alterations and Additions.

' David Bei'ry Hospital—?dateridty Wards, Deniliquin Hospital—Additional Isolation Accommodation, (lilgandra ] b)spital—Additions.

„ Nurses' Quarters. Glen Innes Hospital—Additions.

„ Kitchen Block, Gloucester Hospi ta l—New Buildings. Gunnedah Hospital—Additional Wards, ikc.

H o t Water Service. Hawkesbury District Hospital, Windsor—AIterati<His and Repairs. Hospice for Consumptives, hittle Bay—New Buildings. Jerilderie Hospital—Nurses' Quarters. Juncf^ District Hospital—Isolation Block. L i d y Edeline Hospital for Babies—Additions. Ixieton District Hospital—Additions. Lithgow District Hospital - New Morgue. Liverpool State Hospita l and A^sylum—Chilling Accnmmodation.

„ ,, ,, Two Dormi4.orioK. Lower Clarcnc(( Hospital, Maclean—Kitchen Block. Maitland Hospital—Nurses' Quarters. Manly Hospita l—New Boundary ^^'aIl.

,, New Buildings. Manning River District Hospital, Tares—Nurses' Quarters. Merriwa Htisj>ital—Isolation Block.

., Operating Block. Mui rundiurndi Hospital — New Buildings. Narrandera 1 [ospitid —llemodolling. Newcastle Hospital—Adunnistrative Block.

„ Outpatients' and Venereal Clinic Department. Parkes District Hospital—Alterations and Improvements, Portland Hospital—Additions and Completion. Rookwood State Hospital and Asylum—Residence for Third M.O. Royal Prince Alfred Hospital—Venereal Clinic.

„ North Shore HospiUd—Layout scheme. ,, South Sydney Hospital—Sterilizing and Drying Rooms.

Rylstone Hospital—^Isolation Block. Standard Isolation Wards.

„ Maternity Wards. St. George's Cot.t;ige Hospital, Kogarah—Mat(^rnity Block. Strickland Convalescent Hospital for Women, Carrara—Alterations. Sydney Hospital—Lecture Tlieatre on the Renwick Pavilion. Tamworth Hospita l—New Ward for Women. Temora Hospital—Remodelling. Wallsend l lospit id—Nurses' Quartern Woe Waa 1 lospital Western Suburbs Infectious Diseases Hospi ta l—New Buildings. Wollongong District Hospitrt.1—Nurseh' Quarti'i-s. Women's Hospital, Crown Stn^ot—.\dditions.

Mental and Special Hospitals—

Callan Park Mentnl Hospital—^Ghief Attendant's Cottage. " Fernleigh,' Ashfield—Maternity Home. " Atontrose,' Ihirwood „ Morisset Mx-ntal Hospit?.!—Additions to Female StafT Quarters.

,, „ Additional Male Pavilion, Stockton Rental Hospita l—New Wurds.

Police

68

Police Stat ions— Ardlethan—New Buildings. Bellbrook „ Broadmeadow „ Broken Hil l—Kecreation Building. Byron B a y — N e w Buildings. Copeland „ Ganmain „ Manly „ Moiman Flat „ Moss Vale „ Nel l igen „ Nevortire „ Penrith—Sergeant's Quarters. Pockataroo—New Buildings. Tea Gardens „ Urunga Yanco „ Young , Albury—Sewerage. Bulycroi^—Removal to Rowena. Cassilis—Additions. CoflTs Harbour—Alterations and Additions. Forbes—Additional Cell Accommodation. Jamberoo—Additions. Lambton Mt. Hope Nyngan—Repairs . Redfern Dep6t—Roof over Riding School. Stroud „ Additions and Alterations. Police and Prisons Department, Sydney—Electric Lighting and Power.

Gaols— Albury Gaol—Sewerage. Deniliquin Gaol—Alterations and Repairs.

Court Houses— Albury Court Hou.se—Sewerage. Balmain Repairs, &c. Coonabarabran Court House and Police Buildings—General Repairs. Darlingburst Court House—Accommodation for Prisoners awaiting Trial. Gloucester „ Additions. Gosford „ t, Manly „ N e w Building. Supreme Court, Sydney—Improvements. Tingha Court House—Additions.

Public Buildinirs Generally— Broken Hi l l Baby Cl inic—New Buildmg. Centennial Park—Refreshment Kiosk. Dental Hospitiil, Sydney—Rebuilding. ^ Hawkcsbury Agricultural College—Additions and Alterations.

„ Electric Lighting. Health Department—Alterations and Additions. Hotel Kosciusko—Additions. Jenolan Caves—Additions. I .Ands Department—Additional Accommodation. T.rf)ng Bay—Sewerage to Warders' Cottages. Mothers and Babies' Welfare Centre, WooUoomooloo—New Building.

„ „ „ Surry Hil ls—Remodell ing. National Ai-t Gallery—Extension. N.S.W. State Abattoirs and Meat Works—Freezing and Cold Storage Rooms. Returnnd Soldiers' .Settlement—Pig and Pairy Farms. Stamp Duties Office—Alterations. State Fish Market, WooUoomooloo—Freezing Accommodation. Temporary War Museum. Univers i ty—New Gallery i n Vesalian Theatre.

„ Organic Chemistry—Additions. Wagga Wagga Land Office—New Building.

WORKING DBAWINOB, SKETCHES, AND DETAILS PREPARED. Originals . . . . . . . . . . . . 695 Copies ; 3 ,230

Total 3,925 Si'KCiFiCATiONfi PREPARED.

Drafts 83 Copies . . . . . . 1,177

Total 1,260 _Ow(rtci

69

District Ofice JtcU irus.—The officer administering tlio work carried out by the district oflices reports the following particulars of expenditure on architectural work in the course of tho financial year —

District, For Public Works h'nr Kduratioji District, Department. Dciwriment.

£ s. a. £ s. d. 1,047 10 0 3,935 "t 3

10,G4'2 16 9 10,475 0 0 370 9 0

2,542 1 1 7.425 19 11 l'J,516 17 4 14,04!) 4 9

Dubbo 2,271 9 5 1,6S9 3 8,339 0 0 2,804 0 0 4,934 0 6 5,378 11 6,387 17 10 10,495 13 11 2,193 4 1 3,132 11 2

15,033 11 11 10,325 0 7 5,368 3 6 6,382 9 6 2,032 0 8 2,668 4 0

Hay 2,317 6 0 34 10 0

Totola £76,046 17 1 £78,795 11 3

The following is a statenif-nt covering the various operations in connection with tho duties of ofllcei a in tho undermentioned districts during tho year.

niBlrict. Niinilii'r

of Kcjristcred i'Alters.

Armiiliile Urokea Hill Iknirke Kathiirst Cootnmundra Dnblia ( io i i lbuni ... Hay Kcnipeey Lismore M oree Newcaatlo

Tamworth Wollongong ,

Totali, . . ,

311 5-2 01

283 470 348 302 372

,907

370 ,203

522 270

Niuiilier of EstiuiaCee

l-'roparwl.

6,501

39 6 6

44 30 28 29 29 42 35 19 62

20 42

431

NuinbiT of l>ra«i]i|,'a

and nii)iliivitcii rretiarwl.

101 15 12

118 188 15 2(t 30

11)4 50 47

132

40

938

Xiiiiibcr o( 3i>edflcutioiis

nnii niitilicates I'repared.

55 21 40 86 97 .')3 :u 56 06 66 46 66 64 75

825

9 4 3

11 44 26 12

i 21

21 24

225 13

Numl>er of Minor

Works.

4 2 3

21 (

"i 4 8 2 9

24

o 19

106

Vouchers,

37 9

26 5S

241 36 Oli 10 34 50 30

No Beiioratu aci.'i>u»t.

37 30

682

The mileage travelled by tho officers of tho district works ofiices in the supervision of architectural works in the country districts, is as follows :—

Dlslrict.

Armidale Broken Hill Bourke Bathurst Gootamundra ...... IHibbo (•oidburii Hay Kempsey Liamore (water 80) Moree Nowcastle 'J'amworth Wollongong

Totala ...

Hy UxW.

6, 16, 6 3,

10, 2, 1,

251 160 322 749 535 O'i'l 212 il. 984 167 703 6. >3 927 043

69,862

By Roatl.

4.572 2,078

784 2,688 6,!.S7 7,282 1,348 3,868 5.127

10,098 4,.V21 4,821 5,827 lv543

67,194

Total.

11,823 2 2.38

9,437 2-'. 672 ]3,;i4S 5.1(10 3.H6S 6,111

17,165 12,314 1.5,474 8.7.54 7,.'iS6

137,656

70

List of Lay Labour and Contract Works over £500.—Tho following are some of tlio more important buildings and works either completed during the year or upon which expenditure has been incurred, the estimate being stated when carried out by day labour and the contract sum when carried out by contract (except where otherwise st;;ted).

Contract Works :—

Central Railway Station— Completion State Monier Reinforced Concrete Works

Sydney Hospital—Lecture Room, Renwick Ravilion Dacey Garden Suburb—Police Station Royal Visit —

Stand for Soldiers Decorations, tkc. (Estimate only)

Coast Hospital— Three Pavilions Dining Hal l Recreation Hall

Jenolan Caves House—-Concrete Floor over Creek Public Motor Garage . . .

Waterfall Hospital— Dining and Recreation Hall . . . AdUitii n to Nurses't^uai'ters

Royal South Sydney Hospital— Adilitions aTifl Uepiiirs Additional Works, Electricr LiL;ht . . . Outpatients'Departtnent anil Clinic . . . Sterilizing .and Drying Rooui. . .

Rookwood State Hospita l— Operating Theatre N i g h t Nurses'Quarters

Parliamentary Buildings—Additionsd Accommodation Liverpool Hosjiitid—(Operating Theatre . . . Long Bay Penitentiary—Sanitary Arrangements, Warden;' Quarters . . . Redfern Police Depot—Repairs, »tc. (Joulburn Hospital—Operating Blojk Orange Hosijital—Isolation Block . . . . . . ••• Wallerawang Police Stat ion—Addit ions ... Wagga Lockup—Additions Burrangong Hospita l—Addit ions . . . Lceton Hospital—Isolation Block.. . Queanbcyan District Hospital—T-Solation B l o c k . . . Binalong Police Stat ion—New Building . . . Maude Police Stat ion—New Building H a y Police Station—Cell Extension Raleigh District Hospital—Isolation Block Cofl's Harbour Jet ty—Pol ice Station Kompsey Hospital—Isolation Block Bellbrook Police S ta t ion—New Building. . . Grafton Hospital—Nurses' Quarters Lismore „ — Maternity Wards Boggabri ,, —Isolation Block N.S .W. Government Savings Bank—Repairs, &o. Maitland Hospital—Repairs and Painting Newcastle Explosives Magazine—New Building. . . Stockton MenUil Hospital—Additional AVards AVallsend Mining „ —Addit ions . . . Newcast le Pilots'Cottafa'fs—Repairs Newcastle Morguo—Erection Gunnedah Ho.spitaI—

New Building . . . . . . . . . . . . ••• ••• ••• "• Nurses' Quarters . . . . . . ••• ••• •••

Training College^— First Portion of Building AVomen's Commim Room Sanitary Block. . .

Broughton Hall—-Mental Hospital Medical Superintendent's Quarter? . . .

Ca lkn Park Hospi ta l—New Block, N o . 4 Mothers' and Babies' AA'elfare DepGts—Dowling-strcet, WooUoomooloo Glad?.-vllle Asylum —Alterations and additions Tr.'avjry Buildings - -Temponvry Building

£ s. 177,542 12

17,252 4 1,989 0 4,383 10

1,115 4,590

l ( i 5

1,053 515

7,431 5,410

0,202 1,419 1,500

771

10 0

9 15

0 15 14 14

5 13 12

6 12

1,497 823

2,090 1,758

541 1,012 10 I,.309 2,921

734 1,437 1,719 2,352 1,324 2,094 1,444

G93 1,693

900 850

1,G50 3.513

8 9 0

15 0

15 1 2

8 0 0 0 0

10 1,940 16:

510 519

1,;!93 1,920 4,884 1,492

6 0 5 065

5,206 1,533

d. 1 8 0 0

0 0

40,808 14 10 3,872 15 2 1,695 I I

17 8

16 0 0

12 1 0

0

14 12

59,804 0 0 1,000 0 0 1,083 0 0

16,110 0 0 2,108 0 0

i o , n s 0 0 10,000 0 0

750 0 0 944 0 0

Contracbi

71

Harbours

Contract Works (^continued)— -£ S. d. Peace Celebrations—

liarricrs 1,738 13 2 Mac<iu»rie-str.''et Arch . . . . . . . . . . . . . . . . . . 750 0 0 Stand for Returned Soldiers 719 2 10

In addition to the above, minor contract works were carried out as hereunder :—-

132 Works under £ 5 0 0 , in value 17,635 0 0 Paydabour Works—

Government House—Renovations, itc. (for Royal visit) . . . . . . 2,000 0 0 Royal Visit—Decorations 3,200 0 0 Peace CelebnitioTis—DecorationK ... . . . . . . . . . . . . . . . 768 0 0 Broken Hill Sanator ium-Centra l Block t^,740 3 0 (Jovernmcid, Printing Office—Renovations, alterations, ttc. . . . . . . 3,200 0 0 Maternity Homes—

" ^loidrose," Burwoo<l—Renovations .. . . . . . . . . . . 1,156 0 8 I'Vrnleigh," Ashfield—Renovations 2,522 2 I

Crookwell Hospital—Operating Block and Nui-se.s' Quarters 2,014 8 0 I n addition to the above, more extensive day-labour works,

nnnor works wero carried out by day-labour us follows: — 1,498 works under £ 5 0 0 , value 9,012 1 5

Mrclanical awl Elec.lrical Branch.—The mechanical and electrical equipments in the lists henuintler have received attention during the year under the supervision of the Kngineer tor Mechanical ICquipments and the Electrical Engineer, a.ssociated with the Branch.

The successful display of electrical illumination in connection with the Royal Visit was a feature of the operations of the electrical staff of the Branch.

Tho instalment, hi many of the hospitals throughout the State, of modern mechanical appliances for the necessary lieiiting and cooking arrangements has occujiied the attention of the mechanical Engineering section of the liranch.

Mechanical E(juipnicnts— £ s. <I, Day labour and contra<;t works completed during the year .. . . . . 13,037 3 1 Works at present in hand. . . . . . . . . . . . . . . . . . . . . 10,696 6 6 Estimates prepared during the year for projected works .. . ... 31,980 16 0

The individual works on which the greatest expenditure was incurred under heading " Day Labour and Contract Works," etc., were:—

1. The installation of heating and hot water supply systems into tho new pavilions in connection with the Coast Hospital involving an expenditui-e of £3 ,750 .

2. TIH^ installation of laundry plants into the Coast Hospital at the coat of £ 9 3 8 , and into the Soutli Hydnoy Jlospita! at cost of £ 5 2 2 .

3. The equipment of Liverpool Hospital with refrigerating plant at cost of £ 5 5 8 IDs. I'Uectrical Equipments— £ «. d.

Day labour and contmct works completed during the year .. . . . . 14,869 I 3 Works at present in hand , 20,548 6 2 Estimates, prepared during the year tor projected works . . . . . . 24,170 5 0

I t is my desire to again express my appreciation of the loyal and able supiwrt which I have received from all otlicers and for the zeiil and etficiency which they have displayed in carrying out their various duties.

GEO. M c R A E , Tho I'nder Secretary, Department of Public Works. Government Arcliitect.

72

Harbours and Drainage. I bog to submit the following report on the works of this Branch for the year ending 30th June,

19-20:—

Harbour "Works. The principal new construction work carried on during the year lias been at Port Kembla, CofTs

HarViour, Naroonui, and the Manning, A t Newc;istle tliere lias been no breakwater or training wall ccmstruction undertaken rjuring the year, but the total dredging for this port amounted to 2,133,307 tons.

Coff's //(/rftoyr.—Considerable progress Jias been made by the construction of tlie northern break­water, the tipliead of which now stands at 2,176 feet from the cimimencing point, whilst the eastei-n breakwater has been constructed for a distance of 35 feet. .

Manning Rivsr.—The northern training wall at this entrance has been raised over a length of 1,653 feet, anrl the spur wall consolidated by ballast being tipped along the upstream face. These works form part of the general scheme of improvement at this entrance, and until completed in their entirety even constant dredging will not give satisfactory results.

Port Kembla.—The northern breakwater has now been completn^d to its final chainage, except for strengthening required at the outer or bull head. The eastern breakwater has been extended, and tho length now stands at 2,851 feet.

Further construction has been undertaken on the power-house extensions, including construction of switch house and 33,000-volt sub-station. The machinery for this plant, which was held up for some | years owing to the war, has now all arrived, and is being put into place, and should be in wcu-king order by November next.

Coal and coke shipment has considerably improved during the year, 228,810 tons having been shipped. The revenue raised at this port for the year amounted t() £ 2 6 , 7 8 0 6s, 7d.

Wagonga River.—Completion of tho two training walls at Narooma has been carried out, and the main channel has shown considerable improvement as the result of these works.

Inland Kivers. Snagging has been cairied out for the purposes of improving navigation on tho Murrurabidgee,

Kdwards, and Darling Uivei's. Advantage was taken of tho low state of rivers to do this work as economically as possible.

Drcdginir. The total ijuantity of silt, lifted during the year, inclusive of Newcastle , amounted to 4,360,543

tons, and the average cost—6*71 ])encc per ton—compares favimrably with the rate for the previous year when i t is considered that the cost for the present period has been increased owing to the basic wage, and cost of material also being advanced during this period.

Nfcw Plant. New plant for the removal of rock from Newcastle Harbour and other ports along the coast is

being constructed, and comprises a rock-drill punt, carrying twelve rock-drills, compressor, boiler, &c., and fitted with spuds for raising vessel above the action of waves when drilling is being done.

Two large (irab jranes, mounted on large pontoons, one of steel and the other composite built, aro also nearly completed, and will be used in connection with the excavation of the rock after it has been blasted.

This plant would also have been completed much earlier but for the war preventing tho shipping and construction of tlie plates, drills, and cranes.

Drainage. N o additional Drainage Trusts ha^'e been constituted during the year, The total number at

present in operatioji is twenty-nine. These cover an area of 120,302 acres. Additional works have been completetl by the construction of ilood gates and dam at the Hinton

Trust, and the removal of indurated sand at Newrybar. The Keith Hall Drainage Union lias been proclaimed, and works of drainage are Ix-ing carried o u t

b\' the residents. T. E. B U R R O W S , M.Inst .C.E. ,

Chief Engineer, Harbours and Drainage. The Under Secretary,

2Sth October, 1920.

Tweed River. Soyd's Bay Wharf wa.s constructed' during the year at :i total cost of £1 ,311 Gs. This wharf

provides increased accommodation at a safer location for berthing steamer traiBo—replacing the old wharf opposite the spur wall—-and has to a considerable extent been utiliseil by droghers and river steamers.

Entrance.—average depth on the )jar during the year was 5 ft. 2 in., and on the crossing 7 ft. 4 ill. at low water.

Dredging.—The bar dredge " Latona " during January, February, and March lifted 12,750 tons from the bar, and 18,250 tons from the crossing. This dredge also removed 4,000 tons at the Terranora Entrance.

Dredge '* Harwood " from October, 1919, to end of financial year had removed 4,785 tons of indurated sand in improvement of direction and depth of channel, between spur wall and the entrance.

Dredge

Droilgt! " Cliindiia " working at Condong Reach, Dinsey's Flat, and above Stott's Creek, in the main river, lifted a t o t d of 117,300 tons. Overhaul of this dredge was carried out during January, Februnrv, and March.

TcrmuDra Vock.—Transactions-

Number of Government vessels docked ... ... . . . . . . I Tonnage of , , ,, . . . . . . . . . . . . . . . olili Number of private ,, . . . ... . . . . . . . . . 11 Tonnage of „ „ . . . . . . . . . . . . . . . 65(5

X s. d. Revenue received... . . . . . . . . . . . . . . . . . . . . . 10."i fi 0 K.>:penditure incurred in docking private vessels . . . . . . . . . 87 18 9 Cost of dock maintenance tind repairs . . . . . . . . . . . . . . . I H 9 3

Repairs were carried out to dock gates at a c o s t of £,'1\ 12s. Ttd.. and t w o n^inforcnd cimcreto tanks wore fixed at a cost of £ 2 7 5s. These amounts are included in the tutid shown for Maintenance and Repairs.

IJyroti Bay Jetty. Minor repairs to deck and .siu^athing, and repairs to fenders, 500 lineal feet of tnick (west side

ti-ack) taken up and rolaid with rails transferrcil from R.dlina. There is now a double track on jetty, the Work of making alterations to track at shore end and putting in No. I Crossing being carried out by the Railway Connnissioners' gang, extra rails requiivd being supplied by this Department.

Repairs have been efiected to shore crane, to roof of stockyard shed, to stockyard fence, and to wharfinger's cotUige.

£ s. d. Summary of expenditure for 1 9 1 9 - 2 0 ~ J e t t y 339 15 3

Shore crane, cottage, shed, stockyard.. . 51 19 0

Totid £ 3 9 t 14 . 9

Jet ty moorings wero overhauled during August , 1919.

Ricliraond Kiver. Entrance,—The average depth on the bar tor the year was 12 ft. 1 in., and on the crossing 11 ft.

7 in,, at low water. Marram Crass Planting.—Generally the grass on the sea side of the terrace is growing well, and

farther planting will be carried out early in ihe connng year. Steam Cranes (20-t(m) on North and South Breakwaters, BalUna.—These two cranes have been

dismantled, ready for shipment to the Clarence River Harbour Works. J)red;/in<j.—The bar dredges " Jupiter," " Tethys," and " Latona " dredged 58,850 tons from the

bar, and 125,850 tons from the cro.ssing, during the year. Dredge " Richmond,"' working on shail Udow Swan Bay Ferry and shoal below Woodburn, lifted

102,000 tons. This dredge was under overhaul during Decend)er and Januarv. Dredge " Coiakl " lifted 5,3G0 tons at bJpper Bungawalbyn Creek during the early part of the year,

jind since October has been 4aid up. During April, Ma_v, aiu! June last the dredge was used to assist in , removing the cranes and gear at Ballina for transfer to the Clarence. I

Dredge "Bal l ina" is laid up at Riley's HiU Dock, the crew having been transferred to t h o ' " Richmond " when that vessel was ie-commis.sioned.

Lighter "Nerquis," in returning from work on coastal moorings, foundered at Ballina Beach on tho 231x1 Augu-it last. Gear of this plant was successfully salved.

Riley's Hill Dock. —Tiansactions—

Number of Government vessels docked . . . . . . .. 10 Ton nage ,, „ „ . . . . . . . . . . . . 9 70 ton s. Number of private vessels docked . . . . . . Ni l . Cost of maintenance and repairs . . . . . , , , . . . . . . . £ 1 5 0 3s. lOd.

Dock Accommoiation f.r Foreman—During the year the foreman's cottage was completed, at a total of £ 3 1 3 7s. 3d.

Clarence Kiver. Extrnsion of Northern Jhmkwater.—Thi^ preliminary work of assembling and repairing plant, and

repair of wharves at Uuka and Woodford Island, was put in hand this year, the expenditure to 30th June last amounting to £ 4 , 4 8 2 Os. 6d.

Entrance.—The average depth on the bar for the year was 12 feet, and on the crossing 12f t . 11 in. at low water,

South Grujlon Drainage.—Cowan Ci-eek filling was carried out by dredge " Maclean," 26,459 cubic yards being deposited, at a total cost of £ 3 , 2 0 8 8s. l i d . Spoil for this work was obtained from the shoal at the ejistern end of Susan Island, the dredge " Orara " being utilised lifting spoil, which w-as deposited at the depot, to be redifted by the " Maclean."'

Dredging.—liar dredge " Jupi ier" visited this port from July to September, and in November, May, and June, and lifted 242,000 tons from tho bar and 102,000 Um& from the crossing.

Dredge Maclean.—^After completion of Cowan Creek filling, this dredge, during February, waa put under overhaul. Drwlging at Carr's Creek Crossing was then carried out, 5,050 tons of .sand and shingle l)eing lifted. Dredging for laying the Grafton submarine water main waa commenced in June, during which month 2,810 tons were lifted.

Dredge

74 I

£ 3 6 0 3 7 Railvsay Commissioners.—Repairs to machines, &c., amounting to £ 8 5 13s. Id . , were carried out

in the Harbour Improvement workshops. A statement of expenditure, comprising all work carried out from CofTs Harlwur Office, is

appended.

Bellinger lUver. N o harbour works carried out on this river during the year. Dredge " Bellingen," after

undergoing overhaul at the commencement of the year, was engaged in dredging the approach channel in the vicinity of ferry, dredge coal bunker, and North Coast Company's wharf, also at the Bar Dredge Dep6t and main channel at Urunga, lifting a total of 63,802 tons.

D r e d g e " Urunga," on the uitper north arm at (ireer's Cut, Cahill's and Jarrett's Crossings, lifted a total of 8,641 tons. This plant was under repair during September-October and February-March.

IVambucca River. The bar dredge " Antleon " visited this entrance in October-November, 1919, and was employed

improving Stewart's Lsland Crossing, 21,750 ttms bn'ng lifted, and 750 tons from bar. Dredge " Macksviile " was employed dretlging channel adjacent to Stewart's Island training wall

at Schoolhouso Point, Bar Dredge DepOt, and placing backing at Tic Wall , a total of 134,087 tons Ixjing lifted. Dredge was also under repair during the year.

Overhanging

Dredge "Orara."—As pi*evioualy referred to, this plant was engaged up till the end of Decemlwr assisting South Grafton drainage work, and improving flat below Susan Island, 68,400 tons being lifted, and was then out of commission, tied up at Grafton.

Ashby Dock.—Transactions—

Number of Government vessels docked ... . . . . . . .. 7 Tonnage ,, „ „ . . . . . . . . . . . . 416 Number of private vessels docked . . . . . . . . . . . . 9 Tonnage „ „ „ 755 Revenue received ... . . . . . . . . . . . . . . . . . . £ 2 1 3 15s. 7d. Expenditure incurred in docking private vessels . . . . . . £ 1 2 0 Is. Id. Cost of maintenance and repairs .. . . . . . . . . . . . . . £ 2 0 6 4s. 6d.

Woolgoolga Jetty. Moorings at this je t ty were overhauled during August , 1919, and later the qn.irter moorings were

relaid. 250 feet of .-ipproach doubk; railroad was put in and 120 lineal feet new decking relaid. Repairs and overhaul of crane, together with truck repairs, were carried out were carried out during the year.

The total expenditure, excluding moorings ovei'baul, amount to £ 5 6 3 17s. 9d.

Coff's Harbour. Harbour Improvement Works—The expenditure on construction for the year amounted to £ 2 8 , 3 9 4

IGs. 7d., making a total of £ 1 0 1 , 2 5 5 83. 4d. The main items covered by the firstmentioned cost aro detailed hereunder. The total quantity of stone, including spoil, quarried rfuring the year amounted to 117,690 tons, costing 53'9d. per ton.

Considerable lost time and expense was caused by the wet weather, particularly during the latter half of the year, January to June. During March, April, and j\lay, nearly every pay suffered a reduction of nearly thres days on account thereof, and when not actually raining the drixzly weatiier resulted in the reduction of the output of stone. Heavy seas, especially during January, necessitated work being done to the walls for which no credit Ciin be shown in amount of output o r extention.

Northern Breakwater.—Extended a distance of 253 feet from chainage—1,923 feet to 2,176 feet. The amount of stone deposited for the year was 51,038 tonsat a cost of £ 1 9 , 6 8 8 19s. lOd. = 7s. 8*6d. yxxv ton. The total amount of stoue deposited to date is 199,146 ton.s, at a ciist, inclusive of spoil, of £ 7 1 , 8 3 9 193. l i d . = 7s. 2-6d. per ton.

Eastern Breakwater.—This Breakwater was extended from zero to 35 feet, its present length. A t the end of period 34, 10th January, 1920, its end rested at 23 feet from zero, but the whole of this was lost in a storm at the end of that month, the present length being added since. The anumnt of stone deposited for the year was 14,384 tons, at the cost of £ 5 . 7 4 0 5s. 11. ^ 7s. 11 •8d. per ton. The tt)tal amount of stone deposited to date (30th June, 1920) is 26,108 tons, at £ 9 , 3 7 6 13s. 2 d . = 7s. 2-2d.per ton.

Reclamation Wall.—This wall was extended a distance of 162 feet—from 748 feet to 910 feet. The amount of st«ine deposited for the year was 7,782 tons, costing £ 2 , 9 0 5 10s. lOd. = 7s. 7*4d per ton. The total amount of stone deposited to date (30th June, 1920) is 58,052 tons, at a cost, inclusive of spoil, of £ 2 0 , 0 3 8 15s. 8d. = Os. 10-8d. per ton.

Coff'n Harbour Jetty.—The amount expended on repairs and maintenance on this work for the year was £ 6 3 7 3s. 5d . ,and includes the placing of four piles, six fenders, twenty girders, and 6,720 feet of planking in position. Portion of this amount was expended in relaying buoys and the purchase of chain for same.

Je t ty moorings were overhauled during August, 1919. Navigation Department.—Tho following works were carried out for this Department

£ s. d. Coifs Harbour Jetty—Electr ic l ighting 225 0 3

„ „ Goods shed (repairs) .. . . . . . . . . . . 21 5 I „ „ Loco, shed (repairs) .. . . . . . . . . . . 34 13 6

General repairs for Local OlEce to loco, cranes, &c. . . . . . . . . . 79 4 9

75

Ovciluiiiging trees between Mucksville and BowraviUe were removed t'loni the river bank at a cost of £4-2 10s.

Pilots' Boalshed.—New shwl has been treeted on the nnddle training wall at a cost of £ 3 0 0 4s. 9d. Cart of this exjienditiire was met hy Navigation Department.

Maclcay Eivcr. Bar liredgfi Latona," (hiring June, 1920, worked on the bar, Hfting 9,000 tons, and improved the

approach to Municipal Wharf, Central Kempsey—6,250 tons, A seven-Jay automatic tide gauge has been installed at this entrance.

Port Macquarie. Bar dredges "Ant leon," during Ju ly -Augus t , 1919, and "Latona," during Apr i l -May , were

eiuiJoyed on the bar, crossing and channel in approacli to wdiarvos, lifting 58,400 tons.

Camden Haven. During Decendier, 1919, the bar dredge " Antleon " lifte<l 8,000 tons from the crossing. Kepairs to the southern training wall were carrieil out at a cost of XC4 9s. 2d.

. Manning Uiver. Spur )yidl.—Hepair.s to this wall were complet*«l at a total cost of £ 6 9 2 13s. lOd., and 3,442 tons

of ballast tipped on the upstream face of abutments, the expenditure for tlie year being £ l , 5 5 t 8s. 6d., the total expendituri' amounting to £ 5 , 7 8 2 2s. lUd.

Noythflrn Trainiiuj WaJL—Yh't level of this v/all was raised to 4 feet above hit;!! water overalengt l i of 1,653 feet, 5,360 tons of stent! being tippiul on this work at a cost of £ 3 , 5 6 6 15s. Id,, the total expenditure amounting to £ 5 , 7 8 2 2H. lOd.

Fwiinc Fenr.in'j.—Four hundred and tngbty-eight feet of additional fencing was erected at the s<juth beach, in the vicinity uf basi; of spur wall, at a cost of £ 9 8 12s, lOd.

CundU Dock.—Tran,sactions— Number of Government vessels docked . . . . . . . . . . . . . . . 6 Tonnage „ „ „ 187 Number of private vessels docked . . . . . . . . . . . . . . . . . . 3 Tonnage ,, „ 105 KeveiuMM-eceived during year . . . . . . . . . . . . . . . . . . £ 3 8 15s. Od. Kxpenditure in docking private vessels ... . . . . . . . . . . . . £ 6 4 123. 9d. Coat of <h>uk maintenance and repairs . . . . . . . . . ... £ 2 1 7 19s, 7d.

Dredging.—The ciussing at this entrance received almost continuous .attendance of bar lii-edge.-) dijiiiig the yejii", the "Latona ' and " T e t h y s " lifting 409,350 tons,

Di-eilge " l lari ington " v.as employed at Pelican l iay itar Dredge Dpi)(jt and Ilai-rington Back Channel, lifting 93,01)0 tons. This dredge was under repair during August-September, 1919, and June, 192U.

Port Forster. 7'imher Training Wall.—Borings have been tiiki^n and contract let for the supply of piles and logging

required for the construction of a tindjer training widl at Tuncurry. Dredging.—Bar dredge " Ant leon" during September-October dredged 28,500 tons at this bar. Dredge " Forster" was employed in blocking old channel at approach to Wallamba Uiver, in order

to givo the tidal How an improved direction; also in dredging the Tuncurry channel up to Porters Crossing. The Forster channel, opposite Miles' Mill, to the School of Arts, and Ferry channel, between Forster and Tuncurry, wore also dredged. Total, 100,717 tons were lifted for the year.

Port Stephens. N o dredging or harbour work carried at this port during the year. The erection of signal mast at

Nelson's Bay was completed.

Newcastle. Breahcalera.—During the year heavy seas displaced a few stones at the outer ends ui the Break­

waters, but the effective lengths have not been reduced. Minor repairs to the hand-packed wall, between Southern Wave Trap and Nobby's, were effected.

Harbour Entrance..—Although no dredging has been done, the general depth (23 feet 6 inches at low water) and width of channel Iciuling over the bar has been maintained throughout the year.

Wickham Basin.—Two new mooring dolphins have been erected on the line of l^eo Wharf, near Honeysuckle Point Station. Tenders were accepted for the supply of timber for the cimstruction of Wickham Wharf, 500 feec in length, and also for a 540-foot extension of L e e AV'harf; tins timber is now coming to hand, and it is exjiected that an early start will be made with the work. A great deal of dredging has been done at the entrance to the Basin between the Dolphins and the Coal Shipi>ing Wharf, and also along the southern foreshores, in opening up a deep water channel to the site of the Wickham Wharf.

Matj/ieUi

76

Tons. Northern Breakwater 22,013 Sea Wal l 25,988 State Metal Crusher 62,613 Boat Harbour. . . 604 Eastern Breakwater . . . 24,819 N e w Power House . . . 200

136,237

Total amount of stone quarried to date is 2,321,890 tons, costing £ 3 0 8 , 6 5 0 10s. Id., or 31-90d. per ton. The quarry cost of the 136,237 tons distributed during tho year has been 34-36d. per ton ; this increased cose has been due to the increase in wages and material.

Tho

Mayfield and Waratah Quarries.—Both these quarries have been closed down during the past year, no reclamation walls having been constructed,

, Wharves.—Minor repairs have been carried out on the various wharves and beacons.

Dredging.—Dredging in connection with harbour improvements at Bull Beacon channel, widening Steel Works channel and cluinnel along southern side of Basin to site of Wickham Wharf has been in hand, and the maintenance of existing channels lias Ijeen carried out steadily during the year.

The dredges " Hunter," " Clarence," " Stockton," " VVickham," and " Seaham " have been engaged on the above work, and during the year lifted a total of 1,648,906 tons.

Dredge " Maitland " has not been in commission during the past year.

Dredge " Hexham " lias been engiged in reclaiming areau adjacent to the South Channel, 304,786 tons being placed ; these areas are to be utilised by private firms in tlie establishment of manufactories.

River Dredging.—T>j.r dredge " J u p i t e r " bfted 20,750 tons from the flats between Nos . 3 and 4 Beacons.

Dredge " Swansea" has been engaged in channel between Morpeth and Hinton and deepening channel at Eales Flats, a total of 158,925 tons being lifted.

Dredge "Seaham," employed cleaning up ferry approaches at Hexham, Nelson's Plains, and Raymond Terrace, and improving Windeyer's Creek outlet, dredged 43,876 tons.

Summary of Dredging at KeiccastJe, including Hunter River:— Tons.

Harbour Improvements and Maintenance . . . . . . . . . 1,6^8,906 River Dredging . . . . . . . . . . . . . . . . . . . . . 179,675 Reclamation, vicinity of South Channel . . . . . . . . . . . . 304,786

Total 2,133,367

Hawkesbury Kiver. Dredge "Gosford" has been engaged in the vicinity of W o y W o y and Gosford, tho total dredging

for the year being 129,031 tons. Other than dredging, only minor repairs to Beacon Piles, near Newport, and beacons at Hawkesbury River, have been carried out at a cost of £ 4 2 l i s . 5d.

Botauy Bay and Tributaries. A t Botany Pier new pile has been placed and repairs to stone walling completed at a cost of

£ 1 1 2 17s. 3d. Caretakiiig and repairs to flood-gates, &c., entailed an expen<iiture of £ 1 8 9 5s. 5d., and minor works at Bald Face Quarry, £ 9 6 2s. 2d.

Repairs have been offceted to Liverpool Dam at a cost of £ 1 7 1 5s. During the year survey of Cook's River from the entrance to tlood-gates has been completed. Dredge " Botany" has been engaged on Cook's Rivor and Shea's Creek, and t^e dredge " Corao " a t

Cook's River—106,085 tons being lifted.

"WoUonsong Harbour. Only minor repairs have been effected on this work during the past year. The grab dredge

" Beta was employed dredging the shallow patches alongside the coal staiths, and the bar dredge " J upiter " at the entrance, a total of 1,193 tons being lifted at this port.

Coal shipping during the past year has improved, especially during tho latter half. The revenue for the past twelve months being £ 2 , 4 3 4 12s. 4d., and the expenditure £ 1 , 5 4 1 5s. 8d., the total quantity of coal shipped l>eing 85,488 tons.

"Wollongong—Port Kembla Kailway. From 5th January, 1920, a passenger service between Wolhmgong and Port Kembla has been in

operation, and under the present arrangement engine, drivers, i c , are provided by this Department, tho Railway Commissioners finding the carriages and collecting the fares. This service is well patronised, over 300 win'kmen availing themselves of the morning and afternoon trains. The exfiendituro in completing the station, platform, and buildings, and in running, amounted to £ 2 , 2 9 8 15s . 3d. for tho year.

Port Kembla. Harbour Worls.—Tho output from the quarry for the year amounted to 136,237 tons, being an

increase of 9,545 tons on last year's output. Distribution was as follows :— .

77

The quarry is not improving, and the percentage of small stone for the year at 65-6 is high. Bores were put down on the If) acres adjoining the quarry to ascertain if there was any good quarrying stone in that locality, and the results of these bort's showed that it would not be a payable propt)sltion to open a quarry in that direction. Bores liavc also l)een put down on the floor of the present quarry, and tho results here are much more promising, and show that by sinking, a good face of bluostone cnuld be got, and that tliere is approximately 280,000 tons of stone available.

Northern Breahvater.—TUo total quantity of stone placed on this wall amounted to 802,389 tons and the total length, 3,258 feet, the cost being £179 ,210 5s. Id. The length constructed during the year was 12 feet, over which 22,013 ton^ have been tipped, costing 8s. 6-Gd.'per ton. The wall is now practically completed with the exception of placing in a few stones to streughten it on tho sea side. Approval has been given to concrete the centre of it and this work will bo put in hand at an early date if cement is procurable.

Eastern Breakwater.—Totnl quantity of stone placed in this wall amounts to 870,683 tons and total length to date 2,851 feet, costing £154 ,927 9s. lOd. The total length completed during the year being 49 feet, over which 24,819 tons were tipped, at a cost of Ss. 5d. per ton. The concrete work is still standing well in this wall and only minor repairs have been necessary.

Se/i Wall.—The total stone placed in this wall to date is 128,158 tons, costing £18 ,647 178. 2d. The length of wall constructed during the year was 361 feet, 25,988 tons being deposited at a cost of 3s. 2 9 d . per ton, making a total length of 2,467 feet.

Boat Harbour.—This work is now completed, excepting that the outer side has to be fixed with concrete. The totiil quantity of stone placed in this wall is 19,900 tons, the total cost to date being £ 3 , 1 1 8 5s. 9d., equal to 37'6d. per ton.

The cost of the last two mentioned works has been written in to the expenditure on the Break waters.

Quarry Worksluyps.—During the year new workshops have been built at the (juarry and machinery is now being moved over into these. The total cost of shops to date is £ 1 , 0 0 5 8s. 7d.

No. 1 Jetty.—Repairs to loading appliances have been carried out from time to time during the year.

A number of pil«s have been sbeatheil M ith Monier sheathing and a thorough examination made of all timbers under water, and with the exception of tlie piles that have been sheathed the sub-structure was found to be in a good state of preservation and practically free from teredo.

No. 2 Jetty.—Nothing further, beyond dismantling some of the shore end of this jett^, has been done during the past year, but arrangements have been made to dismantle the whole of the jetty during the next year,

No. 3 Jetty.—Nothing beyond minor repairs, has been necessary. No. 4 Jetty.—A number of piles that were slightly attacked by teredo have been sheathed with

Monier sheathing. Tho 2-ton electric crane has been overhauled during the year and found to be in go^d order. Moorings.—All moorings in the ITarbour have been examined during the year and are in good

order. Dredging-—The bar dredge "Jup i t er" deepened the berths at the jetties, lifting 60,250 tons. Power House Extension.—The building of the additions to the power house is practically

Completed, and the 0,600-volt switch house is almost completed, and the 33,000-volt sub-station is in hand. The whole of the buildings will, I anticipate, be completed within tho next three months, everything at present Ix'ing sufficiently advanced to allow the contractors to proceed with the erection of machinery. The total e.'ipenditure on tho extensions to date is £ 6 2 , 3 0 9 5s. 5d.

Workmen's Cottages.—Tho foui- cottages hav(! been completed at a cost of £ 1 , 9 2 8 Is. 4d. Approval has been given foj- the erection of a further six cottages and plans will be submitted for approval at an early date.

Shipping and / /au^Hjc—Shipping and haulage at Port Kembla has improved very considerably during the past twidve months. Particulars of these are given in Statements marked " B," " C," and " D," and the amonnt of revenue received, which i.s also considerably in excess of last year, is also shown on statement marked " E " attached.

Kiama. Bar dredge "Jup i t er" dredged 1,250 tons at Metal Bins Berth at this harbour during the year.

Shoalliavcn River. N o work carried out at this river during the year.

Jervis Bay. The buoys at entrance to Currauibene Creek-IIuskisson wore overhauled during tho year.

Soundings also taken in this locality. UlladuUa.

N o work carried out during the year.

Bateman's Bay. ^' Minor repairs were done here to the training wall, and report was also made in conjunction with

the Lands Department as to the reclamation of a swamp area at the back of the village. Bar dredge " Ant leon" visited this entrance during May and lifted 11,750 tons from the Bar.

Moriiya

7 8

Moruya River. Bur dredge ' -Ant l eou" daring May-June dredged o,250 tons from the Crossing and 6 ,000 tons

fro'H opposite wharves and in main channel.

Wagonga Entrance. This entrance has, as in past years, given considerable trouble, both the bar and the crossing at

times being very bad. The b.ir d r e d g e A n t l e o n , " dredging at Crossing, lifted 26,1:50 tons from tho Crossing and I8,o00 tans in river dredging above the ferry and adjacent to Mitchell's Mill. Since tho wall has been finished, however, a ch.annel 150 feet wide tias been dredged and better water now exists, b j th oa the bar and t!io crossing, tiian has obtained for many years.

During the year the Spur Walls were completed, the expenditure to date being :— Eastern W a l l — £ 4 , 1 2 0 Is. Id.

17,365 tons have been placed in tlie wall at a cost of 56 '9kl . per ton. Western W.al l—£4,200 14s. 7d.

17,207 tons, costing 58'59d. per ton. Tlie total expenditure amounting to £ 8 , 9 6 7 16s. 2d., including engineering and all other charges; minor adjustments as to credit of plant returned are necessary to conclude.

Montague Island, The S.S. " Auginish " struck a submergetl rock in the vicinity of Montague Island, subsequently a

survey was made of the locality and the rock located.

Berniagui Jetty. Only minor repairs costing £ 1 1 Ss. 9d. carried out during the year.

Tatlira Jetty. Minor repairs and replacement of mooring completed at cost of £ 6 1 14s. Contract has been let

for the erection of Cargo Shed and Platform on the Jet ty , and work conmienced on 14th June, 1920,

Merimbula Jetty, N o work carried out during the year.

Eden. N o work has been done during tiie year, but arrangements have been made for repairing the Je t ty .

Piles have been procured and contract let for the now decking necessary. The new cross-over for the tramline was also put in. The total amount expemied for the year was £ 3 6 7 Is. 6d.

Inland IMvers, Mumtmhidqce THver.—Overhangiug trees from Yanga Creek to 9 miles downstream were removed

and snagging continued above Balrauald towards Glen Dee. Expenditure for the year amounted to £ 3 3 9 9R.

FAbmrds River.—On the basis of £ for £ subsidy tho snagging of thi.s river for 129 miles from its iunction witli the Wakool to about 3 miles above Moulauiein was completed, the departmental subsidy towards this work amounting to £ 2 0 0 .

2)a.ri{nj .fliuer.—Snagging from Pooncairie to within iG miles of Wentworth—a distance of 125 uiiles—was carried out during the year at a cost of £ 4 3 5 18a. Id.

Bourke Lock and lfc;>.—Owing to the drought tiiere has h'^m no navigable water at this locality during the year excepting the last week in June, when, duo to heavy rains, tho river rose to 10 ft. 6 in. above sill. Taking advanta.ge of the dry season, two wickets were renewed, all wood and ironwork tai-red, (ind minor rep-iirs were coMipleterl . Wilt frontin^cr lode 2;ato w a s t i lso removed. Tlie total expenditure on this work amounted to £ 1 6 4 Ss. 5d.

Givydir River.-'Clcar'm^ and burning off debris and cutting ohanncl thro^igh " T h e Raft," also filling in wasbaway.s in ordar to eontlne the water.^ in muin channel, comprised the work carried out on this river during the year. The expenditure amounted to £ 3 7 0 INs. 7d.

Draiuago Trusts and Unions. Neicrybar Swmnf Drainage Trifsf.—Work of removal of indurated sand barrier wag continued aiid

completed, 4,025 cubic yards of indurated .saiid, and 1,143 cubic yards of silt were removed from the main drain, the total expenditure amounting to £ i , 7 7 4 6s. 1 Id.

Moohall and Crahhes Creek Drainage Tfu,st.—T\\c cutting between Mooball and Cudgera Creeks was closed by a temporary dam at a cost of £ 1 3 8 Is. 1d. The whole of the waters from this Trust area have, since tho 28th Fchruarv, 1920, discliarged through tho Mooball Creek sea entrance; a section of the ratepayers and iniierestel landholders outside the Trust having given an undertaking to keep this entrance open.

Ihnfon i

70

Hinton Sumnp Drainage Trust.—Tho construction oE additional works, conij.rising floinl gates, earth dam, anti jiipe culvert were carrietl out by contract during the year at a cost of £1,0'J5,

GrakatHstown and Campoale Sivamp Drainage Trust.—The outlet of minor drain at tho junction of creek with the river was improved by dredging during November-December, 1019.

Keith Hall Drainage Unton.—On 15th August , 1 9 1 9 , this area of about 1,330 acres was proclaimed as a Drainage L'nion, and drains have been constructed by Union under the terms of Part IV . of t i e Water Act.

STATEMENT A. QoJ's Harbour Improvnnmt Works.

Ui.-to£ the expenditure for year 1 9 1 9 - 2 0 —

Coifs Harbour improvements ... Holiday pay Accident pay (including premium) Work done t'cu" local tirms Navigation Department Wo.iigiHilgiL .Jetty (part expendituri') i'oti's Harl)our Je t ty l lailway Connnis«oncrs ...

T o t a l . . .

X s. 21.730 17

I , U 9 8 242 3

20 .-J 3G0 3

35 18 037 3

85 13

d. 3 •)

10 1 1

7 I 5 1

£27,5ai 11 4;

S-r.VTEMBNT B.

Pott Kemhla— Traffic and Shipping Return. Traffic: —

Account A — N o r t h siding to No. 1 .fcttj' „ B—Mt. Kembla Colliery, <leli\'eries to northern siding, thence to

No. 1 Je t ty „ D—Mt. Kembla Colliery, deliveries to No. 3 Jetty sidings, thence

to No. 3 Jetty „ E—Mt, Lyell Company's sidings to No. 3 Je t ty sidings „ F—Northern sidings to No, 3 .fetty -"iding-s

G—Northern sidings bo N o . 4 Jet ty .sidings

Total Shipping :—

No. 1 ^ ' t t y No. 3! Je t ty No. 4 Jet ty

Tons. 87,190

71,820

58,75." 8,07 4 2,353

20

Total ...

228,810

1.->9,0I0 G9,780

20

228,810

STATEMENT C . TrajfiG [other than for Shipinent\ Port Kemhla.

Direction (Northern Sidings, Port Kembla)—

Inwards (Jutwards . . . ... . . . ... ...

Hauled on account of— Klectrolytic R. and S, Co. . . . Metal Manufactures, Ltd. Mt. Lyell M. ami R. Co., Ltd. Public Works Department No. 2 Crusher (metal oidy) No. 2 Crusher (stores oidy) Mr. J. 0 . Fairley . . . _ . . . Messrs. (Jardinm- and Wiidey Mr. W. Waters Messrs. Kiernan & Brown. . . JMessrs. Haymes & Co. y[y. J. Shipp Mr. P. Meurant Messrs. Kirton it Karn.shaw Mr. R. Shipp The State Alorner Pipe Works Messrs. Babcock A- Wilcox Metsrs. Par.tons k. Co. Sundry persons

Total

Tons. civt. r|r8. 5.-),.U3 2 1 85,455 10 :i

Lotal

140,798 12 3

56,048 6 3 888 12 1

1.3,749 13 0 5,459 13 0

11 1 0 01,275 17 .»

- 3 4 11 3 79 n

ti 0 IG 6 0 48 17 1

555 8 0 554 19 3 204 9 0 897 0 0

68 \) o 115 17 I .•!!i5 11 1

73 18 0 90 18 3

140,798 12 3

STATEMENT

80

STATEMENT D .

Port Kcmhla—Coal and Coke Received.

Cotil.

Senders :— North BuHi Colhery, Ltd Corrimal-Balgownio Co'lieriea

) t •>

Mt. Keirft CoUiery, Ltd Mt. I'leasant Coal Co Kxcelsior Colliery. Ltd Bulli Colliery and Coke WorkB, Ltd... . Excelsior Colliery, Ltd Bellnmbi Coal Co., Ltd Mt. Kemlila Collieries, Ltd Federal Coke Co Illawarm Coke Co — Mt. LycU M. & R. Co

Totals

Coal and Coke shipped on account of :— Adelaide Steamship Co Kirton & Earnshaw, Ltd ^ BcUambi Coal Co J Corrimal-BalgowiiieCollierioa J Paxton k Co * Public Works I>opartmeut Mt. Kemblft CoUieriea, Ltd Birt & Co Elder, Smith & Co Mt. Lyell M. & R. Co., Ltd Southern Coal Owners' Agency

ToUls

tons. 4, .-138

39,1-29 4-22 2.'->2

8,39-2 7,8r.3 7,062 3,637

93 ILS.'iS

130,S73

213,804

17,717 93

45,74.5 22,778 1,458

27S 58,753 9,385

141

57,456

213,804

Coke.J

tons. 20

2,795

2,869 648

S,674

15,006

20

'.%'664

648 8,674

ir.,006

tons. 4,558

42,593

8,392 7,853 7,062 3,637

93 11,853

130,573 2,869

648 8,674

228,810

J7,717 113

45,745 28,442

1,458 278

58,753 9,385

789 8,674

.57,456

228,810

STATEMENT E . Port Kendda Shipjnng—Summary of Accounts Issued.

Wharfage at— Inwards. Outwards. Totals,

No. I .Jetty No. 3 Jetty No. 4 Jetty

3. d.

7 0 0 903 11 1

910 11 1

£ s. d. 2,066 10 7

977 7 2 372 11 8

£ 8. d. 2,066 10 7

984 7 2 1,276 2 9

3,416 9 5 4,327 0 6

Shipping— Uroas £11,347 13 2 Less rebate granted to Mt. Kembla Collieries 673 5 3

Ilaulago (other than for shipment) Sales of fresh water Toll on coal and coke 'I'lione c;illH~Cr .Anchorages Hire of waggons Hire of mooring ropsa Hire of motor launch Berthing fees Wages—Cr Kcuts

net

Total ,€

a. d.

4,327 0 6

10,674 7 11 1,731 5 4

84 17 0 354 H 1

1-2 5 0

4i5 4 9 107 2 7 61 5 0

186 14 4 21 9 6 18 16 41

17,624 11 4

STATEMENT F . Revenue—Wollongong Harbour.

Tho revenue received at this ofi&ce on account of Wollongong Harbour for the year ending 30th June, 1920, totalled £ 2 , 4 3 4 12s. 4d., made up as fol lows:—

Shipping coal Rent of land for stacking coal, Illawarra is S.C.S.N. Co. Rent of shed to Kirton .& Earnshaw, Ltd. . . . Rent of fish cabins at 6s. per month . . . U s e of boat slip at 5s . per week Wollongong Uas Co. Ltd., loading coal into bins Port charges on timber, tkc, stacked . . .

£ H. •1. 2,226 7 7

20 16 8 8 0 0

14 Ifi 0 6 10 0

53 9 6 104 12 7

£ 2 , 4 3 4 12 4

STATEMENT

STATEMEST of Ladder Dredge Expenditure for twelve months ended 30th June, 1920.

Ladder DredRc,

^ hcj "Caarenoe" .....

" H u n t e r " " Bichmond " " O r a r a "

Where working. M»t«rial lifted. Tool tilted. Honrs dredging.

Hoots worUng. Expenditure.

271,150 46t,900 102,000 63,400

1,0S2 861

1,113 510

2,428 2,370 2,360 1,196

£ 8. d. 5.651 14 4 7,501 4 4 3,150 7 9

498 9 6

906,450 3,596 9,354 16,S0i 15 10

Pence |>er ton.

Cost per hour

dredging.

Cost per hour

working.

Porveat^e of working hours.

i l n

iin;umoiKl River CiirencB Riyer..,

Mud, Band Claj, mud, sand

do do Sand, mud

Totala ... Averages

d. 5-00 3-87 7-41 1-75

4-45

d. £ B. d. 5 4 6 2 6 7 45 1 5 1 11 87 ... 8 14 4 S 3 4 S8 2 8 4 47 3 2 16 7 1 6 9 47 3 8 ... 10 80 2 0 18 t) 0 8 4 45 3 12 16 13 11

4 13 6 2 0 3 44 2 8 ... 10 32 4

Eitengive repairs.

STATEMENT of Large Sand-pump Dredge Eipenditure for twelve months ended 30th June, 1020.

Large Sand-pump Dredge. Where working. Material hfted. Tons lifted. .lig.

Hours working. Expenditure. Pence

ptir t .>R. 0 « t per

hour dredging.

Cost per hour

working.

Percentage of workinjt hours.

Remarks

00 " Hexliam " "Ohinderah' ' ' Harrington

"Stockton "

" Jupiter " ..,

*'AiitIoon" ...

" T e t h y s " ..,

*'Latona" ...

Newcastle Tweed River ... Manning River

Newcastle , fCiarencB River ... I Richmond River 1 Fort Xembla I Wollongong I Kiama l^Newcaatle

Port Macquarie yarooma Cape Hawke

^ Nambucca River Camden Haven... Bateman's Bay .,,

I^Moruya C Kichmond River ( Manning River.., f Manning River... I Port Macquarie.., \ Tweed River

Richmond River Maclcay River ,.,

Sand and shell ... Sand, shelS, mud Sand, sheHjinud^

M u i , saod

Sand

i

Sand

Sand

Sand

Totals Averages...

804,786 117,300 93,090

826,760

529,050

16t,750

427,500

145,650

2,598,876

1,076 867 808

1,130

700

730

404

6,042

2,366 2,369 2,376

2,358

2,422

2,509

2,533

2,G36

19,584

it c. d. 6,233 13 7 4.033 1 8 4,472 11 11

3.543 10 3

7.305 15 0

7,059 9 0

7,723 2 0

7,982 18 3

d. 491 8'25

11-£3

103

331

1091

4 33

1315

48,356 1 8 4-47

£ a. d. 5 14 n 4 13 0 5 10 8

3 2 9

10 8 O

21 11 9

10 11 7

19 15 2

8 0 1

£ B. 2 12 1 14 I 17

1 9 11

3 0 4

2 16 3

3 0 11

3 0 7

2 9 5

46 37 31

4.8

30

13

29

15

32

10

16

11

11

25

21

21

11

16

13

23

19

25

23

13

15

12

Extenaive repairs. Greatly delated through aon<

flupply of coal.

10

ST*\TBMKNT of Small Saiui-pump DreJge Expenditure for t w d v e months ended 30th Juno, 1920.

•Sn-all Sand-pump Dredge. Wliere workins-

*' Botany"

" Swansea"

"Be'i ingen' '

"Fori ter ' -

" Mnciean"

" Mncksville "

"Gosford"

Cook's River

Hunter Eirer^

B'iilingrr River

Cnpe Uii'.vke -

ClsrcTi™ Rirer

NambKCcn ttirer

Brisbano Water

P«neBtag« of-working honn.

Material titled. Tons lifted. Haura dn^sing.

Hours Expenditure. per ton. Coat per

liour Ost

per hour vorkiiig. •a

1 1 1 •a 2 a l

it

= 1 t •?

<s

1. ^

n

£ s. d. tl. £ s. d £ s. d.

Sand, shell, stiff mud G0,815 2.3S3 4,2J3 10 6 16-93 4 19 8 1 M 1 ... 10 1 ... 50 9 Eitenaire repaira.

Sand, mud, ehiogle... 158,031 2,37« 8,t47 19 7 4-7S 2 0 3 1 6 6 4 IS ... 8 7

Sand, mud, gravel ... e3,S02 806 2,37-4 4,103 13 5 lo-4l 4 11 7 1 14 7 37 3 IS ... 33 G Eilensive repair.'.

Siind, mud, shell 10\717 1,281 2,373 3,015 6 2 718 2 7 1 1 6 S 54 2 28 2 ... 10 4

Sand, mud, shingle,.. 5\735 930 2,35*1 4,728 16 2 20-OJ. 6 1 2 2 0 2 40 1 17 ... 1 86 6 Extensive r^'pairs,'

114,087 1,138

1,380

2,368

2,368

3,';S0 15 5 L-87 2 17 8 I 7 9 48 * 12 30 6

Sand, sh?ll, mud 12>,«31

1,138

1,380

2,368

2,368 2,661 3 3 4-95 1 18 7 1 2 0 58 2 ZS 1 ... «

7M,U2 8,057 10,600 2.'3,2)li 4 6 7M,U2 8,057 10,600

8*60 3 2 8 1 10 G 48 2 :s 1 26 5 to

Grab Dredge.

" Coraki" ...

" Como" ....

" Harwood "

"Seaham"

" Urunga '*

" Wickham "

" B e t a "

VVIiera working.

STATEMF:ST of Grab Dredge Expenditure for twelve months ended 30th June , 1920.

Material lifted. Tons lifted. Hours dred}!'"),'-

Ilonra working.

Richmond River

Cook's Rivor, Shea's Cradk

Tweed River

Xewcastle

Bellinger River

Newcastle •

Wollongjiig

Sand, Ftone, heavy P,360 timber.

Sand, muil, and clay.. 45,270

Indurjit-ed sand '

Mud, !a":d, 3tonp,(lebri>

Hard sand, grave?, mud

Mud,stoiie,saiid,d('bris

CoilafiduU.*

4.785

43,876

8,641

42,230

943

217

1,360

M S

1,161

883

1,398

214

656

2,.'J70

2,302

2,389

2,378

2,368

401

Tolala 151,105 AveraePB

5,754 i 12,954

Expenditure. Cost per ton.

£ B. d. I d. 371 3 7 j 16-62

2,!Jl0 16 7 13-31

1,075 2 2 I>9-07

],H54 5 4 10-14

1,708 16 8

2.002 18 5

436 11 0

47.46

11-3J

l l l l O

Cost per hour

10,859 12 9

£ 9. d. 1 14 2

I 16 11

3 IG 3

1 11 10

1 18 8

1 8 7

2 0 10

17-25 1 17 9

Cost per hour

workiug.

£ 8. d.

0 10 10

1 1 2

0 16 0

0 15 7

0 14 4

0 16 I I

1 1 0

reruentttge of working hours.

32

57

22

49

37

69

54

0 16 9 44

21

9

11

20

13

15

5

2

5 5

0

9

9

35

12

26

12

40

9

31

24

11

12

22

6

G

2

10

r.eiuark'i.

Laid up Si'ptcmber, inO.

10

Heavy repairs.

Only working 3 monlh?.

Tug

8t4tb«e»t -of Tttg BipendRure and "Work for t w e k e montht ended 30tb June , I9f0.

Where eraploj-ed.

" Cardiff " , . " C r o k i " .. " Uasino " " E d e n " .. '• Grafton " " Hiuton " " Hamilton' " Liamore"

Mayfielil ' •' iloruya " " Paterson " " Taree " ..

Waratah "

Newrti*tl.-Cook's Hirer.. Richmond Biret Newcastle

do da do do do do do

( ' la r i ' i ice Rirar Newcasllf an ! Mmst ..

Totals J Average* \

ToMtew«d. tewing.

:

UilM run service.

272.100 7,422 8(5 ' 3,17'J C56

102,010 7,750 82 8 •..24') 5.9«5 1,717 ,

401,503 2,S31 , , , . . . 6,645

57,080 1,291 4,302 2,603

4,302

11.430 8 .-99

266,090 7,U0 355 Gj,t00 1,22:1 100

10J,ltS0 4,250 4.439

1,855,485 43,fi38 38,4-20

Total working hours,

Hours Coet ot towing. Cost ol special aen-ice.

Cost per Cost „^^t,„'per n"'e

Viirint,., i^orting

2,-t=2 2,US5 2,40S 2,019 2,r)G7 2.S13 2,t6l 2,309 3,300 •2,i70 2,435 1,899 3,U3

2,2 >5 1,926 1,949 2,802 1,897 2,610 2236 2,179 3, ICO

S',t90 l,-iSl 2,912

31,22 I 29,743

£ fl. d. 1,288 10 9

261 14 4 1,277 15 10 2,00i 0 0 3,722 IS 0

4tl 5 '2 3,354 16 10 ,

3,OL»5 3 10 583 11 1

1,259 3 4,

16,1*9 5 3

£ B. d. 782 11 10 124 17 6 16 IS 6 535 6 11

1,750 7 6 1,63S 7 2

i,210 i9""o 1,602 3 0

937 0 0 8 9 3

775 11 6

0,421 12 2

d. 1-15 1-39 3-00 5-64 222

1-35 2 19

1-81 1-87 1-59

2-09

a. d. 3 6 1 8 8 4 6 9 26 3

6 io 25 9

6 8 8 9 5 11

7 5

3 10 4 2 6 6

6 7 2* 3

52 1 3

Coat per

hour aUend- -5

ioir. § I OD

Percentage of working ho

s, 16 8

10 17 U 12 10 28

2 7 8 ISJ

4 II l l5 5

d. < 8. 8 1 8 1 8 4 0 9 13 8 6 IS 3 5 39 3 4 13 5 9 18 G 4 :30 10 6 8 0

13 8 26 10 8 6

13 10

17 2

63 ! 55 ! 57 ' 58

19 43 54 13 75 63 70 33 59

7 8

19 4

20 8 9 8 6 5

12 32 7

11

25 31 20 32 59 12 31 73 14 29 13 34 31

33

Remarks.

Oi

CoMPAKATiTE S t a t e m e n t o f Q u a n t i t y a n d C o s t o f Work d o n e b y L a d d e r D r e d g e s ( w i t h t o w i n g ) , f o r p e r i o d a a s s t a t e d .

Ladder Dr lge. l^Ticro working.

1 July, 19U, to 30 Jane, 1019. 1 July, 1919, to 80 June, 1920.

Remarks. Ladder Dr lge. l^Ticro working. Dredging, Towii^, and Repairing. Prodging, Towing, and Repairing. Remarks. Ladder Dr lge. l^Ticro working.

Tons. Expenditure. Pence per ton. Tons. Expenditure. Pence

per ton.

Remarks.

do Richmond River

337,'r70 680,760

Kc

£ s. d. 4 , 3 ^ 2 6 7,696 14 4 1,858 6 8

)t in cemmiBsion

d. 3-91 269

271,1S0 464,900 102,000

61,400

£ s. d. 9,901 17 0

11,839 11 0 4,603 7 2 1,082 0 6

d. 8-77 6-11

10-84 3-63 Laid up December, 1919.

do Richmond River

337,'r70 680,760

Kc

£ s. d. 4 , 3 ^ 2 6 7,696 14 4 1,858 6 8

)t in cemmiBsion

271,1S0 464,900 102,000

61,400

£ s. d. 9,901 17 0

11,839 11 0 4,603 7 2 1,082 0 6

d. 8-77 6-11

10-84 3-63 Laid up December, 1919.

I,arge Satidpump Dredge]

" Hexham "... •" Maitland " " Chinderah " " Harrington' "Ba l l i na" .., "Stockton "

' Jupiter '

*'Antleon'

" Tethys '*

"r .atona"

CoMPAHATiTE Statement of Quanti ty and Cost of W o r k done b y Large Sand-pump Dredges (with towing) for per iods as s t a t ed .

Where working

1 July, 1918, to 30 June, 1918.

Uredjting, Toivinp, and Repairing.

Tons. Expenditure.

Newcastle , , do

Tweed River Manning River .. Richmond River Newcastle ........

fClarence River ,., Richmond Rivor PortEembla

) Wollongong ..... Kiama Newcastle

Port Mactjuarie.., Narooma Cape Hawke , NambuccaRiTer Camden Haven. . Bateman's Bay .., Moruja Manning River .. Bellinger River.. Tweed River

^Richmond River

f RiehmoBd Eiver \ Manning River, .

10-1,260 440,622 194,518 102,720

&7,689 429,675

645,750

Manning River .. Port Macquarie.. Tweed River Richmond River Maeleay River ,. Camden Haven .. Clarence River .. Narooma Bateroao's Ba j .«

188,750

275,120

106,460

8. d. 2,556 18 3 6,319 17 1 3,317 15 7 3,523 3 9 2,G4S 16 2 4,485 10 5

5,659 18 7

8,344 12 5

7,733 10 4

7,278 12 4

Pence per ton.

d. 5-88 2-90 409 8-23

1102 2-51

210

10-61

6-75

1641

1 July, 1919, to 30 June, 1920.

Dredging, Towing, and RepnJring.

Tons. I Expenditure. Pence per ton.

s. dJ 304,786 ' 6,G23 6 10

Out of commbsion. 117,300 4,060 19 10 93,090 ! 4,500 10 1

Out of commission. 826,760 I 9,208 9 9

529,050

154,750

427,500

145,650

7,313 19 7

7,059 9 0

7,726 15 6

7,932 18 3

d.

6-23

8-31 ll-GO

2-67

3-32

10-95

4-34

13T5

Remarks

IDI9-20. Tons.

fClarenee Rivor..., Richmond River. Port Kembla .... Wollongong Eiama Newcastle

fPort Macquarie 27,5C0 Narooma Cape Hawke

•I Nambucca River Camden Haven Biiteman'a Buy

i^Moruya

f Richmond River, t ManuiuE River ,

fManning River . Port Macquarie . Tweed River .... Richmond River. Maeleay River.,..

344,000 102,550 60,250

250 1,2.''.0

20,750

44,750 28,500 22,500

8,000 11,750 11,750

71,050 356,450

52,900 30.900 36,000 11,100 16,750

Cost. Pence per ton.

3,52 J 3 G 1,451 15 11 1,869 14 9

43 19 10 73 6 6

251 19 1

1,019 16 2 8-90 2,580 17 6 13-84

920 15 11 7-75 861 7 10 919 584 3 3 17-52 303 12 8 6-20 788 15 8 16-11

1,647 0 9 6,079 14 9

3,168 9 J,47S 11 2,051 5

652 10 642 2

2-46 3-40 7-45

42-23 14-08 4-07

5-56 4-09

1 14-33 6 11-48 3 14-07 4 1411 1 9-78

CD

CoMPAttATiTE Statement of Quanti ty and Cost o£ Work done b y Small Sand-pump Dredges (witb towing) for pe i iods as stated.

1 July, 1»18, to 30 June, 1919. 1 July, 1913, to 30 June, im. Sm.iJl Sand-iiQinp Dndge. Where working. Dredging, Towing, u>d Repairing. Dredging, Towing, and Bepairing. Remarks.

^ 1 S-P««iiture. 1 Too.. 1 Expenditure. | ^ ^ - ^

" Botany " ..

"Swansea", ,

"Bellingsn " "For s t e r " .. " Maclean " " Macksviile' " Gosford". .

Cook'B lliver ( Port Stephens .. } Hunter River .. C Newcastle

Bellinger River .. Cape Hawke Clarence River ., Nambucca River Brisbino Water..

£ s. d. 102,541 2,703 5 2

142,780 2,189 3 0

85,178 2,336 5 8 89,155 2,859 J 8 4 54,807 1,9J9 0 4 61,-537 1,901 17 7

126,111 1,66L IS 3

d. 632

3-68

6-72 7 70 8-36 7-4-i 3-lt;

60.813

158,925

63.803 100,717 56,735

134.0i7 129.U31

£ f. d. 4,393 II 5

3,311 6 3

4,131 11 6 3,139 17 7 4,950 0 11 3,t05 6 10 ir,79S 2 1

d. 17 35

5 05

15 51 748

20-94 609 5-20

1919-20. All I lucter Hirer.

Crab Dredge.

CoupARATiTE Statement of Quantity and Cost of "Work done by Grab Dredges (with towing) for periods as stated.

" Corati " , *' Como " " Harwood" *' Seahom" . " Urunga" . " Wickliam " " Be ta" . . . .

Where working.

Richmond River f Cook's River „ ' (.Shea's Creek j" Tweed River Newcastle Eeilingcr River Newcastle Wollongong ,

1 July, 1918, to 30 June, 1913.

Dreiiging, Towing, and R<>pairing.

Tons.; Eipenditure. Pence per ton.

£ 8. d. 13,765 1.79G 1 2 19,495 2,675 11 0 13,715 1,066 G 6 67,804 ' 2,209 10 7 15,919 I 1,478 14 6 56,950 2,234 16 4

Not in commission.

U. 3t-32 32-94 1841 U-lN

22 29 9 42

I July. 1919, to 30 June, 1920.

Dredging, Towine, and Repairing.

Tons.' Expenditure, Pence per ton.

Ren

5,363 45,270

4,785 43,876 8,611

42,230 943

£ 412

B. d . 4 10

2,813 14 2 3 2 9 5 0

2,001 0 2900 17 1,73(> 13 3,S7>) 6

4J6 11

d. 18-46 14-94

100-46 16-87 48-24 18-58

111-11

Laid up, September, 1919.

AvEBAGK Cost of Dredgmg and Towing for periods as stated.

Class of Dredge.

1 July, 1918, to 30 June, 1919. 1 July, 1919, to 30 June, 1920.

Class of Dredge. Tons lifted.

Hotm dredging.

Dredging only. Eh-edging and lowittg.

Tons lilted.

Hours dredging.

Dredging only. Dredging and Towing. Class of Dredge. Tons lifted.

Hotm dredging.

Expenditure. Average

cost per ton.

Average cost

per hour dredging.

Expenditure. Avera je

cost per ton.

Tons lilted.

Hours dredging.

Expenditure. Average , coet per ton.

Average cost

per hour dredging.

Expenditure. Average

cost per Ion,

Totals

947,S20 2,54.'),46i

662,112 177,648

2,015 6,389 7.417 7,560

£ B. d. 8,163 19 10

49,520 6 3 15,210 10 8 8,137 1 11

d. 2-07 4-67 6-51

11-00

£ e. d. 4 1 0 7 15 1 2 1 0 1 1 7

£ s. d. 14,706 15 4 54,252 11 2 16,685 1 7 12,224 4 10

d. 3 73 511 6 05

1651

f06,450 2,.^9S,876

701,112 151,105

3..^96 6,042 8,057 5,754

£ s. d. l«,80l 15 10 43,356 1 8 25,2 !4 4 6 10,830 12 9

d. 4-43 4-47 8-60

17-25

£ B. d. 4 13 6 8 0 1 3 2 8 1 17 9

£ 8. d. 27,465 3 10 64,631 4 6 26,169 18 11 13,624 10 10

d. ' 7-27 5-04 8-92

21-64

Totals 4,333,041 23,371 81,040 13 S 4-19 3 9 4 97,923 12 11 5-42 4,360,543 ! 23,449 101,251 14 9 5-S7 j 4 6 4

121,890 18 1 6-71

so

lllectrical En^^ineerinir Branch.

Aunual Ecport, 1919-20.

I. Introductory, I present herewith niy report o n the operations of the Branch for t h e year e n d e d 30th J u n e , 1920. The year has t)oen (uie of steady expansion and development, the volume of work dealt with having

greatly increased owing to the passing of the Hydro-Klectric Development A c t and the Ijocal Oovernniont Aet , the former resulting in ttie preparation of dexsignsfor tlie Barren Jack and Nymboida Power Stations as detailed below, whilst the operation of the Local Government Aet has caused a large nuuditr of municipal propoRalg to b e referred to mo for review.

On the other hand, tlie rising prices for machinery that occurred early this year, a n d especially the exceedingly heavy cost of generators a n d motors, liave in many cases militatetS against t h e finali-sation ot projects of eonsiiicrable promise. These, a s well as other c j g n a t 3 matters, are d e i l t with i n detail below.

II . Investigation of Water Power Resources. Investigation of the water power of t h o State w a s continued throughout tho y e a r , tlio Clarence

River triljutariea receiving first attention. Following tins I propose to continue with the Shojdliaven, t h o Murray tributaries in the neighbourhood of Tumbarund)a, and sucli other powers the exploratory surveys of winch have indicated their being of sutHeient im]i-.)rt;ince to warrant further inquiry, t h e surveys l )e ing carried to such a stage as to furnisli sulhciently accurate data to enable reliable estimates to bo mado,

SSOWY BlVEK,

In January last I submitted a report indicating the manner in wldch the large a m o u n t o f p o w e r available from t h i s river m a y be developed by stages commencing with the unregulated flow of the r i v e r , which will alibrd some 21,000 kw. and increasing by instalments to the full ir)0,000 k w . , which m a y l)0 regarded as the iiltinuite capacity of this development.

The final scheme, winch is indicated on t l ie accompanying sketch, No. 115/2, embraces the con­struction of a (lam in tlie neigldvturhoixl of Jimlabyne, or po.ssilily sevei'al <hims on the eonti-ii>uting strea.ns higlier up. A race will lead thence to a subsidiary rosi;rvoir at Beioka Creek, the water lieing conveyed from this reservoir by a tunnel through the mountain a n d again by a short r a c e t o a pipe-head reservoir above Popong C.^eek, a fall of somi> 1,GOO feet to the bed of the latter being obtaint^l. Tho configuration of the country is sueh that to take full advantage of this fal l it will necessary t o divide i t into t w o sections, placing one power-station som« . JOO feet below the fiist pipe-head reservoir, and eon-strueting a second power-station w h e n necessary t-o dcjd w i t h t l ie remaining 1,000 feet fall or m o r e . For t h e initial developtnent TIO dams are necessary, the unn^gulated flow of the river being sufficient to develop approximately 24,000 kw. continuously. The cost of this initial development will IK' approxinuitely £2 ,000 ,000 , with an annual exixuiditure, including interest, sinking fund, and depreciation, of some £1-00,000. These figures allow for the necessary transnnssion line to Twofold Bay, where power couhl b o sold for X5 per kw. per annum, or 0"2d. per unit. This figure is c<)nai<ler;ibly Imlow that which i s |K>3sible with steam generation, oven under tho most favourable conditions, and may be compared with 0-3i;9d., for w h i c h price i t h a s been estimated that power c a n b c de l i \Trcd in Melbourne from Morwell.

CLARENCE RIVER. A general outline of the Clarence River scheme, which has b>en for some t i m e spoken of as tho

Gorge scheme, is shown on the accoTupanving sketch, No. 120'-tT. The data Idtherto collected indicate t h a t this i= undoubtedly one of tin; largest projects in the State woidh development, and that .some 80,000 h.p. is probably continuously available.

RIVER MURO.IY—HUUE RE.sERVoitt.

The question of the utilisation of t h e power avaihdile from t h e regulated <lischargo of tlic Murray Rivor a t t h e Hunic diim lias b e e n rcfcrreil to nu^ by ftlr. K. M. do Burgli in his capacity of Chief Engineer for N.S.W., under the River Murray Waters Act.

Mr. de Burgh has furni.shed me w i t h i n f o i n n i t i o n as regards the anticipated btdiavinur of tho reservoir, in the light of w h i c h the problem i. Iwing s t u d i e d . There will !>;• a vaiying J i m o u n t nf power available, ranging from zero up t o a maximum of jMissibly 15,000 kw. or even more, though whether i t will pay to develop t h i s will d e p e n d to a large extent upon what adjacent sources of power can bc tlevr-loped t o b e tied in w i t h the Hume reservoir power.

The Albury power station might bc cnlaiged or some otlier coal station constructed t o serve a s an

on the Kiowa than w o u l d otherwiKO be necessary in order to obtain a given maximum output, and the two mittht l>e w o r k e d in conjunction as already s u g g e s t e d in s u n d r y papers that I have from time to time w r i t t e n o n the s u b j e c t of the uti l isat ioTi of water stored for irrigation, and as described b e l o w in connection wi t l i Barron Jack, Buddong Va\U. uml flilmore Creek. The extent to wliich the power available s l iou ld IK- d e v e l o p e d is thus a matter that should bc decided after confercr.ee with the Victorian Electricity Connnissioners.

III .

III.—Importance of the Utia^. ; i U>o "Water Power Ecsources of the State. Tho importance of the large amount of power at iiresent running to waste cannot l>e over-OHtimated'

Tho Snowy is undouliUidly tiic hirgest singh^ source of energy availahk! i n thi.^ State, if not in the ('onnnoiiwoidth, whilst the Clarence llivcr, the Muriay a t the Hume reservoir, tlie Hhoalhaven, and other smaller developments are each eap!d)le of adding considerably to ihe wealth of tlie State.

The desirability of making this power available is most evident, and I must again emphasise that it is essential tliat tho Government should make known amongst prospective power users, some of whom havo already made advances, that i t is prepared to etmsidcr the question of these developments. I t ia to be noteil that directly the Tasmanian (Government had completed a small development, whereby it was able to oft'er liydro-eleetric power, a demand for power for new industries was immediately made to tho {'xtent of over 40,000 h.p. , and contracts t o this extent were concluth'd. Tliese manufactures are taking holil in Tasmania to audi an extent that it will b c extremely dillicult to induce caiiitalists at the buck of (licse industries to move from that State, unless New South Wales arouses herself and makes a bid to obtain lier fair share of these new industries. The fact alluded to under the next lieading, as to ait application for a block of power to the extent of 5,000 h.p. for the manufacture of alunnnium being necessarily refused by the Government at the present date points in this direction. Apart from this, lus 1 have repiusented from time to titne, there ai-e continual inquiries from parties interested in electrio-Ihermic or electrolytic manufacture, such as alkalies, carbide, carlxjrundum, tit'Cel, lead,and other products of tlie electric furnace.

The British Government has recently elrcularisetl the self-governing Dominions urging that they should take stock of their facilities for generating electricity whether from water power, coal, oil, or other sources of energy, and should appreciate their permanent and ever-increasing importance to the ICmpire.

Under the heading of Wholesale Hulk Supjdy of Klectrieity, I allude to the fact that New Zealand ;ind Tasmania are spending sums totalling nearly ten millions of pounds sterling on tho development of their water power. Tasmania has organised a special Hydro-Electric Department, Victoria has established an Electricity Commission, New Zealand has established Power lioards, Canada has organised a Donnnion Water Power Board, while the United States of America has only recently ( l l t h June, 1920) passed a law nationalising tho whole of its water power resources, placing them under the control of a Federal Power Commission.

IV.—Ilydro-EIectric Comniittec. This Committee, referred to briclly in m y last Ueport, appointed b y the Minister in May, 1919, held

iiVQ meetings during the year. Various reports on hydro-eleetric investigations Juive iM'en considered, and null tors in connection with .schemes now in band at Barren Jack and Nymboida have been discusseil.

A further application from Messrs. Kinred and Son for water jwwer rights on tlie head waters of the Tunmt Uiver, which was referred b y the Premier to the Committee, was ei)n.sidered, but not recommended. A s tlie Government lias detinitely decided to carry out the Barren Jack scheme, better u.se can be made of the waters in the vicinity, which include the Tumut head waters, by tying these in with the Barren Jack power than by independent operation.

A n application for a lilock of power to the extent of 5,000 h.p. from Barren Jack for the iii.'inufatrture of ahimiiuum was cotisidered hj ihv C<jiiiiiiitt<.f, which b«d iii> re(;(nirsi> but to rfcoinuiond its refusal, for the amount of power required is approximately tlie limit of the present development, and it will IK' all required for water pumping, lighting, a n d the supply of industrial power in towns in the neigh bourhocd.

In connection with the construction of >vorks for the Barren Jack and Nymboida Hydro-Electric Oavelopment, next to be described, the Minister decided in August last that I am to be the responsible officer.

V.—Barren Jack and Nymboida Ilydro-Elcctric Development. The Hydro-Electric Devc'lopinent (Construction) Bill was presented to Parliament early in October

last. I t passed through the various stages after considerable discussion, and tbc Act waa finally assented to on 23rd December, 1919.

BABBEN JACK. Physically the south-western tableland consists of a feiti le upland plain into which tho main

water-ccmrses, the Murrumbidgee and its tributaries, have cut deeply. The country has shown itself especially adapted for both wheat and wool of the highest quality, and a nun)t)er of important towns have sprung up requiring adeciuate waler supply, usually involving pumping, and power for all the minor uses of civilisation as well as for industrisd purposes such a s Hour-milling, woollen manufacture, cool storage, &c. The cost of power forsucli works has been steadily rising of late, as wood and other forms of local fuel have been worked out, and as coal has beeoine increasingly expensive owing to its advanced price at the pit-mouth and heavy increases in railway freight.

I t was Mr. Pj. M. de Burgh, M.Inst.C.E., Chief Engineer for Water Supply and Sewerage, who first jiointed out how electric power from Barren Jack could b e used to help him to solve the water supply ])roblem8 with which he is faced, and thereby to provide an adequate supply for the tableland, i b i s primary use, coupled with normal domestic uses of power for lighting and minor uses, and as regards the hirger industries, the proximity to raw material and existing railway facilities will enable such manufactures as alM)ve referred to to be carried out locally, thus obviating the necessity of sending material to Sydney to be inanufaetured, and thereby aiding in that decentralisation of which this State stands so much in need.

I>uring August an investigating ofHeer was appoint<^d, whose duties were to visit each nf t!ie towns w ithin the soo|ie of the Barren Jack development and ascertain the general requirements and the likely demand for electric power.

The estimates made were on a conservative basis, and showed that there is an immediate demand within a radius of loss than 100 miles from Barren Jack of some 9 million units of electricity per annum, with a maximum deman<l amounting to approximately 3,000 k w . ; while within easy transmission distance theit ' is a demaml of 15 million units per annum and a corresponding maximum demand of 4,250 kw. These figures cover present requirements, but invariably when reasonably cheap electrical energy is mado

available

available in a district the demand increases, so that within five or ten yeary there is a prospect of two or three times the power to be initially made available being required, Then it will be that the auxiliary stat ion at Gilmore Creek and Buddong Falls will be necessary.

The eomplete Barren Jack scheme is indicated in Drawing N o . 24i5;64 accompanying this report, which shows not only the Barren Jack power-station but the two subsidiary station? just referred to. The flow of water at the liarren Jack station is dependent entirely on irrigation requirements which vary according to the sea.son and inversely as the rainfall—that is, in wet seasons little water will be required for irrigation, whilst in a drought large continuous flow from the reservoir will bo necessary. Thus, during dry seasons when litclo natural water-power is available there will be ample power at the Barren Jiick station.

The generating stations at Gilmore Creek and Buddong, on tlie other hand, will be designed with comparatively small storage, and thus whilst having full power available in wet seasons may even be shut down during dry seasons when Barren Jack power is at a maximum. I t will thus be readily seen that with tbe.se two generating stations tied jn with Barren Jack, a continuous flow of energy would be realised far beyond that which would be possible by developing each source independently. I t was for this reason that the Government refused a private application, referred to previously, for water-power rights to the head waters of the Tumut River. By the co-operation of these three projected power-stations, an output throughout the year of over 12,000 kw. can be obtained, whereas Barren Jack alone cannot be relied upon to furnish more tlian about 5,000 kw. during normal winter seasons.

The initial development which is at present in hand is to construct the power station at Barren Jack only with such portions of the transmissiou system as may be deemed most expedient. The water will be brought through ono of tho existing openings in the dam by a pipe along the hillside to tlic power house, which will be situated about one-third of a mile downstream from the dam, thereby securing an additional 40 ft. fall and increasing the power available from 15 to 30 per cent, according to the height of water in tho dam. The turbines will be direct-coupled to electric generators generating ;-!-phase alternating current at a pressure of 6,GOO volts between phases and a frequency of 50 cycles. This pressure will be stepped up to approximately 66,000 volts for transmission purposes and transformed down at various substations for bulk supply to shires and municipalities.

NYMBOIDA. The Nymboida scheme, which is outlined on drawing No. 116/18, is being put in hand primarily to

supply Grafton and neighbourhood, and secondly to form the first instalment ot a very mucli larger undertaking on the Clarence River known as the Gorge scheme, which is being urged so strongly by North Coast interests. The initial investigation indicates a market for over one million units per annum, with a maximum load of 500 kw,, with immediate prospects of double.

The complete Gorge scheme is illustrated in Drawing No. l'20/47. Even in its initial form this involves the expenditure of a large sum, which cannot reasonably be incurred without a market being available, and i t is anticipated that the small undertaking at Nymboida will, by testing tho market, demonstrate the feasibility of the larger scheme, and lessen the cost of its construction by providing cheap power therefor.

Tlie Nymboida undertaking makes use of a tunnel already existing (cut for the Grafton water supply) through tlie ridge near the township of Nymboida. The water will be brought through tliis tunnel and led vid a race and pressure-pipe to a power-station situated about a mile and a half below tho tunnel exit , thereby obtaining a head of some 200 feet. Electricity will be generated at 6,G00 volts stepped up to 33,000 volts for transmission to Grafton, probably as far down the Clarence as Maclejin, and to the works on the main river for the larger power developmeot contemplated in the future.

Tenders have been invited for the whole o£ the machinery, including turbines, generators, transformers, and switchgear for both undertakings. Plans and specifications for the pipework and surveys of the transmission line are in hand.

VI.—Wholesale Bulk Supply of Electricity. This subject whilst relating to hydro-electric development, and already incidentally treated of in

reference to ttie south-western tableland and the (irafton district, must be referred to .sepaiately, seeing that the aim of the provision of a bulk supply of electricity is to make available power by the cheapest obtainable means whether from water-power, coal, or other sources wherever it is re(|uired for all purposes domestic, industrial or otherwise.

I n the example afforded b y the proposed south-western tableland supply, water-power happens to be the cheapest source of povver owing to the proximity of the Barren Jack reservoir, to the conHiderable distance o£ the nearest coal mine, i ind to t h e C(wt of r E i i l w a y f reiglit tlience. In other cases power derived from coal is cheaper than water-power, and in such cases coal power-stations should bo established. Or, Hgain, waste heat from coke ovens may b e useil or the gases which are at present allowed to escape and arc loat can bo burnt and cheap power derivable therefrom can be fed into a system of transmls.iion mains and utilised for the general good.

Whichever be the source of power, bulk supply as practised to-day in progressive countries contemplates the existence of transmission mains joining centres of population to places where, owing to certain local conditions due to the presence of w.*itcr power, coal, coke ovens, l ignite depo.'^its, natural ^as , oil wells, or other natural sources of power, coupled i n t h e ease of steam plant with an ample supply of water for condensing purposes, power can be ganerated at the cheapest possible cost. Power-station.') and genorating units of t h e hirge.<5t size warranted b y the load are employed, so that the highest economy in attendance m a y be attained, a n d so t h a t the power thus produced and distributed may be, as it invariably is with a properly designed system, considerably cheaper than can be generated at a small isolated power-station.

Electricity is an absolute necessity to-day for most industrial processes, and it has been abundantly proved that the excellent conditions provided by its use enable the working man to turn out a greater output of work and to earn higher wages at less cost of labour to himself (q.v. para. 7 of tho *' Interim Eeport on Electric Power Supply in Great Britain by tho Coal Conservation Sub-Committee," presented on

16th

89

IGtli April, 1917). Consequently, as it is universally aeknowledgenl that increased output is necessary to reduce the cost of living and to restore normal conditions, it follows that in^ireased use of electricity will prove no small factor in improving the general welfare and comfort of the community to a point in advance of pre-war conditions.

The fact that electricity can be transmitted over long distances prevents the necessity for concentration of industries round coal areas and other such centres, and thus tends to such decentralisation as has already been emphasised as regards the south-west tableland, and simultaneously permits ia country towns and in farms and dwellings within roach of the mains similar labour-saving devices in the humblest home as are tonlay found indispensable in sueh of the cities and large towns as are already supplied with electricity.

Tho rapid developuumt and many benctits that have accrued in various centres of the world where a comprehensive sclieme of electricity supply and distribution has been laid down and conti'oUed by broad minded higislation are well known, and the example set by the Hydro-Electric Commission of Ontario, winch WHS the pioneer of this movement in the Riitisli Dounnions, is now being followed all over tlie world. As icgar^is Australasia, Tasmarna, Victoria and New /lealand have already enacted certain neces-ary legislation, and large expenditure has already been authorised or has actually been incurred by these countries. Tasmania up to 1919 expended throe-quarters of a million on its hydro-electric scheme, whicli ia proving to be a work of first importance to that State. New Zealand has already spent £ 5 0 0 , 0 0 0 , and has already authorised an additional expenditure of some £7 ,800 ,000 on a comprehensive system of power-supply throughout t!ie wliolo country, whili! Victoria is establishing a power-station on the brown coallLelds with transmission mains souie ^2 miles to Melbourne, the scheme involving an outlay of some £.'1,000,000.

Hulk supply in New South Wales has hitherto been limited to individual uncorrehited effort. A n example is adbrded b y the supply from Port Kembla power station, in connection with whicli an agreement has l)cen entered into with the Woollongong Municipal Council to supply power for all purposes from Port Kenibl I. I n my last annual report I referred to the completion of the transmission main from Port Kembla as far as Cordeaux dam, and to the decision to extend tho main to Avon dam and thence t o Mittagong, liowral, and Moss Vale. The exten.sion from Cordeaux to Avon is now well in hand, and tho surveys for its continuation from Avon as far as Moss Vale are complete. The construction of this extension is, however, in abeyance for the present, as the increase in cost of material and labour has brought the estimated c o s t above the amount authorised by Parliament to be expende<l without the ajiproval of the Standing Committee on Public Works, and on this account the Minister has decided to refer tho proposal to the Public W'orks Committee before taking further action. A proposal to construct a further transmission l i n e from Port Kembla-i'id Dap to to Kiama and Nowra has been similarly dealt witli. In this case the requirenients,of the various municipalities passed through, and the Metal Quarry Industry round Kiania, will certainly provide a paying load sutticient not only to justify the cons':ruction of this line but in addition to increase ao greatly the output of the Port Kembla station as t o enable a genera) reduction in the price of power.

The Kailway Commissioners are co-operating with the City Councils both of Sydney and Newcastle by furnishing supplies in bulk to the Councils, the latter retaibng to their consumers. Apart from these examples a number of collieries, Hebburn, East Creta, and Caledonian Collieries Co., and others in the north, tt>gethcr with, in the south, Corrimal, Balgownie, Bellambi, and others furnish supplies to various towns in their respective neighbourhoods. T'hese supplies are mostly alternating current at various voltages and frequencies, though some f e w are direct current.

Arrangements were nearly completed last November between Wes t Maitland and the Caledonian Co. for supply from Aberdare, 17 miles distant, to W^est Maitland, when early tins year the Railway Commissioners made a more advantageous offer of power from their Newcastle station, 20 miles distant, and were accepted. Since then T understand they have arranged for extending their transmis.sion line to [irovide power for Singleton, which is 49 miles by rail from Newcastle.

Such supplies are justifiable when a power-station established for railway or tramway purposes is able to dispose of its surplus at rates cheaper than obtainable from other power-3tati(ms in the neighbour­hood. The approaching electrification of the Newcastle tramways justifies the establishment of a large power-station there, and all towns within economical limits of transmission ought t o b e allowed the benefit of Hucli supply a t the cheapest rates available. On the other hand, if reliable supply can already be obtained fnim up-to-date economical sfcitions such as aro provided by many mines for their own purposes, s u e h supply should be taken advantage of, and the determination as to which power-station to connect to should not be arrived at from a narrow point of view, but as a refiult of searching technical inquiry which is needed to determine which of two or three available sources of obtaining supply it is in the best interests of a given town to^idopt. Further, to secure permanency of supply it is of great value to interconnect by a transmission main two or more power-stations such as that of the Railway Commissioners at Newcastle aiul of the Caledonian Collieries Co. Ltd. at Aberdare, or the Port Kembla power station, with, e.g, Bellambi or South llulli, if the cost of the connecting line can bo shown to bo economically justifiable.

Whether such justification exists for the Railway Commissioners to supply a town some 50 miles distant when there are other coat supplies in the neighbourhood cannot be answered off-hand. Present indications point to i t s being a long time before main line railway electrification will justify the e.^tablish-ment of large power-stations for this purposp. It is understood, however, that the Railway Commissi(mers are greatly extending the use of electrical signalling, but this requires a comparatively small amount of power, and is not in itself a justification for running long and expensive transmission lines if a reliable and economical supply is available near at hand.

I n connection with the transmission from Port Kembla to Moss Vale, I investigated a proposal to make use of the railway route for the transmission lines, but limitations imposed by railway requirements as regards non-interference with signals, limits of distance from rails, short spans round curves to prevent wires overhanging tlie rails, &c., combined, so aficet the cost of the work that a straight run along a public road, or preferably an easement across country, is shown by actual estimates to be a less costly and more etTieient method of construction. In this connection it is to be noted that extra high-tension trans­mission lines are admittedly best taken in a straight line across country, and it is usually preferable th«t no other linos should bc on tho same poles. Although

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Although the Local Government Dspartraent hold an inquiry and give approval before money is borrowed by a Council for electricity supply to a town, there is at |)resent no independent authority to say whether any given town falls witlun tlie aphero of induence of one or other power-station, ant! wliether it is to the advantage of tho coiiimunity for connecting lines to bo run between large power-stations of the neighbourhood, and if such lines wore run, by whom they should be owned and operated is not at present determinable.

Without control as tho aroa of supply from scattered power-stations is increased, there is danger of the construction of an unnecessary number of costly competing transmission lines not only obstructing tho public highways, but resulting in the cost of power to tho public being at considerably higher rates than obtainable if proper control existed.

If the surplus pov,-er from all such sources could be supplied into one system of transmission mains under the control of a body appointed for the purpose, with legislative authority to buy in bulk and sell in bulk at the lowest price eousistent with sound finance, sales to be made at cost, the price of power to the various towns, works, i c , would bo at a minimum.

'Seeing that the sup[iliers mentioned above are already in the field, there is urgent need of legislation to prevent this State experiencing disadvantages which havo resulted in other countries where supply from unrelated sources has been allowed to go on unregulated, to correct which has necessitated the expenditure of large sums of money.

VII.—Control of Public Electricity Supply. The considerations set forth under the last heading, together witli others of more technical nature,

_ point to the urgent necessity of legislation to control the supply of electricity for public purposes. This I have repeatedly represente<l during the past eight years, but until this year no active stops

have been taken. Shortly after his taking ofiiee, however, the pi-esent Minister for Works , the Hon. J. Estell, realising the extreme importance of the subject, in May of this year decided on my recommenda­tion to call a conference representing tho various bulk suppliers, to discuss tho form that legislation should take.

The personnel of this conference is as follows :—• Representing Government Departments—

Mr. W . O. Brain, Chief Electrical Engineer, N . S . W . Government Railways and Tramways (Chairman).

Mr. W, Corin, Chief Electrical Engineer, Department of Public Works. Representing Municipal Council—

Mr. H. K. Forbes Mackay, General Manager, Electric Light Department, Sydney City Council. Mr. Guy Allbutt, Electrical Engineer and Manager, Newcastle City Council.

Representing Exist ing Bulk Suppliers— Mr. D . McGeachie, Superintendent, Caledonian Collieries Ltd. Mr. A . E. 0 . Sellers, Superintendent, South Bulli Colliery.

The main problems to be discussed arc— (a) Control. (6) Ownership and operation of cross-country transmission lines for buik supply, and incidentally the

generation and supply of electricity in bulk generally. Owing to the absence of certain members it was impossible to arrange a mooting t>efore October,

since when two meetings have been held, and it is hoped that the conference will make a report at an early date.

VIII.—Municipal Electric Supply Schemes. A s mentioned in the introductory paragraph, these havo come into greater prominence than ever

since the passage uf the Local Government Act, 1919. Those dealt with by the Brancrh may bo divided broadly under five headings, as follows :—

(a) I n connection with applications to borrow money, requests forwarded by the Local Government Department to this Department for myself or one of my oiliceis to assist tho Commissioner holding the statutory inquiry.

(6) Draft agreement between parties endeavouring to obtain franchises from municipal councils furwaifled by the Local Government Department for my perusal and report,

(c) Applications direct to the Ministet for Public Works for advice in respect of isolated l ighting and power schemes when connected with water supply or sewerage,

{d) Similar applications, when the proposed eleetricity scheme for the municipality is intimately connected with prospective power supply from a State-ownt;<l p<>wer-stat.ioii.

(e) >Siiiiilar applications when neither water supply, sewerage, nor State power schemes are affected. A s regards (a) and (6), the necessity of councils protecting tho interests of the ratepayers by

obtaining the disinterested advice of a thoroughly qualified consulting engineer ha^ been oftentimes apparent, and more than reasonable ur necessary work has boon thrown on this Branch in revising ill-conceived Bcheinea or in inserting into draft agreements provisions protecting the ratepayers.

A s regards (c), (d), and (e), it is provided by the Local Government A c t that the councils may make their owi; financial arrangements, subject to the approval oE the Goveroor-in-Couucil, after the Iiolding oE a Local Government inquiry, or alternatively, they may apply ti» tlie Minister of Public Works to construct, and the Minister may, if he so decides, construct the works for the council.

I t was anticipated that the new Local Government Act would involve a large and increasing number of applications, and with this in view, a definite ruling was made by tho Miniater early this year tliat owing to the prior importance of the water supply and the number of country towns awaiting the i)rovisioa of funds for waterworks construction required to an extent in excess of the limited loan funds available, the Department could on no account undcrrtake to provide funds for establishing electricity works under the powers reserved to tho Minister by section 373 of tho Acts , unless such works wore an integral part of a water supply. On this account requests from several municipalities for monetary provision under the Act for the establishment of electricity works have been refused. Detai ls

9 1

Details of the advice given in connection with Municipal Electric Supply schemes follows :—

(a) Local Government Department Inquiries. West Maitland.—A. proposal was received by the Local Oovernment Department from the Wes

Maitland Council to borrow the sum of £ 1 7 . 5 0 0 for tlie establishment of electricity works. The Commissioner, Mr. Newell, a])pliecl for niy assistance, and I thereupon attended at the inquiry on nth Septend)er, 1910, ami cxannned witnesses on behalf- of the Commissioner and submitted a report on tlie 23rd October following.

The proposal includes a transmission line from the Caledonian Collieries Co.'s mine at Abcrdiire, some 17 miles in length, t;o West Maitland, tosjether with tlie reticulation of the town.

My report was generally favourable to the proposal, though I suggested certain modifications in the reticulation witli a view to saving expense, and to more efiicient working, which were adopted by the Consulting Engineer,

I understand that at a later date the Railway Commissioners offered to supply electricity in bulk within the buun-lary of the Municipality, and that this offer has been aeeepted and the work is now in progress.

Glm Innes.—TWw matter eame to me both from the Chief Engineer for Water Supply and Sewerage, Mr. de Rurgh, and from the LOCHI Government Department in connection with an application from tbe Council for authority to borrow £12 ,000 .

I visited the town and tho waterworks on the 10th April, 1919, and attended the adjourned inquiry in Sydney, and suggested sundry mixlifications in the proposal which were embodied by the Consulting I'jigineer In the scheme. The Commissioner's report was favourable to the carrying out of the work.

(6) Draft Agreements Forwarded for Perusal. Those included agreements in respect of electric supply to Tweed Heads, Maclean, and Wes t

Maitland. Tho draft agreements were different in each case, and each contained provisions which it waa

necessary to modify, this entailing considerable care and attention in order to conserve the intei'oats of the ratepayers.

(c) Proposals for Municipal KUctrkity Schemes connected with Water Supply, d:c. Albiiri/.~1hfi increasing load on the e.tisting plant having reached such a stage as to make it evident

that exteinions were necessary, .seeing that 1 had de3ign(>d the original works and layout, application was inad(^ by the Council for my .services in this connection. Consequently, I visited Albury and conferred with the Council. Tlie question of the supply of power for the Hume Dam Construction Works, distwnt some fi miles from the power station, was at once raised, and, as a result, J recommended to meet the normal e.xpausicn of t!ie undertaking a 300 kw,, set with boilers, i t c , estimati'd to cost £ 1 4 , 0 0 0 complete, anil to provide for tlie l luuie Dam Construction and additional GOO kw., at an ci^timated cost of £"20,000, this adilitional plant to bo provided by tiie Government at its own exjiense, and to be rrpaiil by the Albury Council over a term caminensurate with the period of construction of the dam, whan this larger set would become the Couniril's property. The terms of pajmient included supply at cost by each party, neither to make a profit. This proposal was accepted, and lenders were invited for the plant to carry out the normal extension of 300 kw., together with the additional 600 kw. conjointly. In the meantime the prices in niiu'binery rose, anil, when tenders were received, tlie deliverii's were so nnsatisfiictory, and the prices so high, that it became evident that the estimate v/ould fall considerably short of the mark. Unfortunately, the Albury Council tlid not see its way to modify the arrangement, so that eventually it was deeide<I to pnivitle a separate power station for the dam construction works at the site, and the Albury C-ouneil has t,i.ki'n the necessary steps to obtain sanction to an additional loan to provide for the normal growth of iti business.

Culcairn.—The question of the electric l ighting of Culcairn was raised owing to a suggestion from the Water Supply Rranch of tbe Department that the pumping station might reasonably l)e combined with an electric lighting station. The Council wrote on the 30th January asking for a report on the electrical side of this propo,sal, and after a visit of an officer during March a report was duly submitted recommending a gas engine driven plant, direct current, tliis course being indicated owing to the very special conditions obtaining at Culcairn.

J'amwoith.- -'Vhu plans and specifications referred to in my last Annu;il Report for the new power house plant wore delayed from a variety of uncontrollable causes, but were eventually forwarded for the consideration of the Council in November.

Early this year, however, owing to the tromondous increase in prices which eccurretl aliout that time, i t became neceasarv to inform the Council that the estimates previously submitted required entire revision, causing the total figure for the installation to Iw largely in excess of that previously submitted. The new tiiriff which came into force during March caused a still further increase. The Council thereupon decided to abandon tlie scheme set forth, and to content themselves with a smaller one. for the time being, which they placed in tho hands of a private firm of consulting engineers.

Wagga Wagga —YoWowing the report submitted, referred to in my last Annual Report, with the Minister's approval, detailed plans and specifications relating to the electric supply of this town wei-e pit'pared and forwarded, togeth(U" with estimates, to the Wagga Council. This proposal is now in a fair way to being consummated, the Council having been fortunate in obtaining some second-hand plant at an adv.antageous price.

Hay.—At the request of tbe Municipality, tlie Minister approved that a report should be furnished with regard to the establishment of an electricity supply undertaking for the town.

After one of my otlicers had visited Hay and obtained the necessary information locally, I furnished a report to the effect that tlie cost of a scheme suflicient for the town would be £ 9 , 0 0 0 ; that an electric supply if established should b:> run in conjunction with the Water Supply and Sewerage Services ; but that seeing that tho municipal rating powers are nearly exhausted, the Ctmncil should thoroughly assure itself that the scheme will be su]>ported by a suilicient numlK-r ot ratepayers to make it i>ay Ix^foro incurring the further liability in\olved in the establishment of tbe scheme.

Condobolin.—A request was received from this Municipality for an officer to visit the town and report on a combineii scheme in connection with the Council's existing waterworks plant. Owing to the proHsure of work, however, this lias not been possible up to the present. (rf)

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in he

proposal to supply from Port Kembla. BOM™^.—Following an inquiry from the Department as to whethei tho Bowral Council would

be prepared to take a supply of electricity in the event of tho Department making power available in the vicinity, the Couneil asked for a report, and thereupon I visited Bowral, and interviewed the Mayor and Town Clerk, and left an officer to collect information, which has been used in the preparation of a report. This matter, however, has not been pushed owing to more urgent work in the otEce, and for the cause referred to in connection with Mittagong.

Moss Vale.—Similar postponement of action has been necessitated in connection with Moss Vale, where the Council has signified its williness to buy energy from the Government as soon as the Port Kembla Power is made available.

Picton.—At the request of tho Municipal Council oE Picton an extension of tbe transmission Hnc to this town was investigated. Although the anticipated revenue will nob be sullieient for the present to pay all charges on capital cost, maintenance, A c , good reasons might be put forward for earring out this line as part oE a more comprehensive extension towards Sydney. The Picton extension is included amongst the transmission lines from Port Kembla which are to be referred to the Public Works Committee.

Gampbelltotcn.—Representations were also made by this Municipality, but owing to the large cost of construction and upkeep of tho transmission line, and to the fact that the possible revenue will be insuflScient to make the extension payable for tho present, the proposal has been postponed. This extension would be justified if the transmission lines advocated in my report on the utilisation of the jiower of tho waters of the Cataract and Cordeaux Reservoirs were constructed, and extended to join up with the Sydney system, via Parramatta.

Central Illawarra, Kiama and Nowra.— V^arious portions of the Central l l lawarra Municipality, such as Port Kembla, Unaoderra, Fig Tree, and Mt. Drummond, can be supplied from the Port Kembla Power Station, or from tho existing tiansmission line to Cordeaux without any addition other than tho necessary step-down transformers. The question of immediately supplying this district is under consideration.

Also, in connection with the exteusions of the Port Kembla System, as far as Moss Vale and Picton, the construction of a transmission line as far south as Kiama, where the Metal Quarries will form a payable load, and thence onward to Xowra, is being included by the Minister in tbe reference to the Public Works Committee.

(e) Applications for advice in connection with electricity supply for Municipalites wJien neither tvcUer supply, sewerage, nor State Power Schetnes are affected.

Lithgow.—In my last report I referred to my first visit to Lithgow, in order to give advice with regard to electric l ighting of the town. I visited Lithgow the second time, in October last, for this purpose, as a result of an application from the Municipal Council inquiring as to whether some relief could be given quickly to their gas undertaking by the initiation of electric supply, if only for lighting purposes.

I attended at a Committee meeting of tl;e Couneil, and one of the Messrs. Hoskins also attended at a later hour, and as a result, I reported under d.itc, 14th November, reconiineiiding that tho offer of Messrs. Hoskins to supply electricity at U d . per unit be accepted, and as to what steps should be taken immediately in order to put the ligliting of the town in hand,

A t the Council's request, with Ministerial approval, the plana and spocificationa for the whole of this work were prepared by this Branch.

Dorrigo.—I referred to tho proposed hydro-electric supply for the township in last year's report. Tiie scheme, as arranged, is shown in Drawing No. 9/14 accompanying this Report.

The Municipal Council, having adopted my proposal, applied to the Minister that I should prepare the necessary plans and specifications, and approval being given, this was done early in the year, and the neces-sary authority for borrowing having been obtained through the Local Government Department, specifications have been issued, and tenders invited for the work.

Junee.—In response to a request from the Municipal Council, which was approved by the Minister, that I should give advice generally as to the electrical works at Junee, I visited this town in September last year and submitted a report recommending certain moditieatlons, principally on account of there being two generating pressures in the power station, and an unnecessary number o£ small transformer positions which militated against the reasonable use of power in the town.

Dubbo.—A request was received from the Dubbo Municipality during March for a report, but this could not be undertaken at the time owing to pressure of work. Tho council therefore engaged a firm of consulting engineers. Forbes.

{d) Proposals for Municipal Electricity Scliemes in connection lotik Pros-pedive Supply from Slate-owned Power Stations.

Of these, all except Maclean, which has been referred to under heading (b) above, are concerned with the supply from Port Kembla.

Wolhngong.—The Municipal Council requested and the Minister approved that the Di'partinent should undertake the preparation of complete plans and specifications for the reticulation at the expense of the Municipality. This work has been completed, and the necessary authority for borrowing £ 1 1 , 0 0 0 having been obtained through the Local Government Department, tenders have been called and a contract let for the reticulation of the town.

With regard to tho necessary transnnssi(m line the Government has undertaken to pay the cost aa far as the Municipal boimdary, and half the cost thence to Swan-street, and to construct the whole of the line, and to provide a pole type substation utilising outdoor transformers. Tliat portion of the work which forms a charge against the Municipality is to be repaid by instalments spread over twenty years. The construction of transmission line is in hand, and a contract has been let for the transformei-s which are to be of Australian manufacture,

Mittagong.—At the request of the Municipality the Minister approved of the Department preparing plans and specifications for tbe reticulation of tho town, aiut preliminary plans and specifications l iave

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Foihcs.—A request similar to that above from Dubbo was received from the Forbes Municipality 1st last year. This also had to be declined owing t:j the inability of the Branch at the time to cope For

in Auguf with the work in hand.

Kyogle.—A request from the Kyoglo Shire for a report to be submitted on the question of an electrical installation was not approved.

Orange.-—'At the request of the council, and on the ap])roval of tho Minister, I visited Orange and furnislied a report reconnnending the council to take steps to borrow £.12,000 for the establishment of electricity works including a power station and the town reticulation. I t is understood that the council proposes to proceed with the scheme, but a request to the Minister for the Department to provide the necessary funds under the Local Government Act was refused.

IX.—Work for Other Branches. PORT KBMULA POWER STATION.—FXTF.SSIOKS.

Reference has bean mado above to wdiolesale bulk distribution of power from this atation, which was constructed out of funds provided by the Port Kembla Harbour Improvements Vote.

The extensions outlined in my previous report have proceeded uninterruptedly, the buildings having been completed, the boilers, generators and Ljiingstrom turbines erected, and since the conclusion of the year under review these have been placed in regular use.

A point of interest with regard to this ])lant is that the boilers work at 200db. pressure with a superheat of 250 dog. Pah., resulting in a higher temperature for the steam than in any other plant in Australia. Overhead vonl bunkers aio included in the boiler-houFC design, sufficient for 2G0-tons of coal, these having been constructed of reinforced concrete by the Stale Monier AN'orks.

The 6,600 volt switehgear, with all accessories, such as storage biittery and motor generator, are in a control-room forming part of the new building. Control is efiected by means of a switchboard nearly on the same level but slightly above the engine-room floor, the switches being in the basement below and operated by remote control gear, all high tension conductors being kept in the basement and low tension current only being led into the control-room.

Tho extra high tension transformers and switehgear for .3.3,000 volts are accommodated in a separate transforming substation on the opp<j?ite side of the railway lino.

PORT KEMBLA, CORDEAUX DAM AND AVON DAM TRANSMISSION LINE. The first portion of tins line, that is as far as Cordeaux Dam, continues to be worked at 17,000

volts pending the completi<tn of the transformer house at Port Kembla and the putting intt) service of the 33,000 volt transformers. The maintenance of this line and sundry inspections have been under the contrul of this Branch, a foreman linesuian having been appointed to sujierintend the maintenance with permanent headquarters at Cordeaux Dam.

Tlie extension t ) Avon Dam is near completion. The preliminary examination, selection and survey of the route, together with th,e preparation of specifications were carried out by this Branch. The erection of tho lino ia in the hands of the Heftident Engineer, Avon D r m , my officers assisting when necessary,

TRAN.SFORMER SUBSTATIONS AT CORDEAUX AND AVON. A t each substation four 210 K V A . single pha.so 33,000/240 volt tran.sformers have been supplied

and both Ingh and low tension switehgear has been obtained to a specification prepared in my Branch. A t tlie Avon Dam a special feature is the provision of a static condenser equipment for power

factor correction. Tins is of the Mansfield type, a British invention of great promise, used for several years for telegrnphie work and rocentiv deveUiped for power work.

Tests of tho lujisting machinery have been carried out on several occasions under my direction, and the equipment of the hoisting machinery for Avon Dam has been the subject of consultation between Mr. do Burgli and myself, the tiesign being as a result somewhat moilified to meet the conditions obtaining.

PORT KEMBLA TO AVON TsLKrnoxs LINE. The necessity of the careful design of a telephone line when paralleling a high tension transmission

line is appreciated by transmission enginecr.s, and, bv the way, i t may be mentioned that i t is proposed that the ([uestion of protection of the Postmaster-General's telegraph and telephone circuits against inductive interference shall be the subject of a conference between suppliers and the Postmaster-General's oflicers at an early date. There are po.ssibilities of danger to human life if certain protective devices aro omitted. This subject haa received the careful attention of the Branch and the necessary protective apparatus for tho telephone line from Port Kembla to Cordeaux has been partly installed, and further apparatus is on order which will be erected before the transmission line extension to Avon is placed in operation,

MrrrAQOKO WATER SUPPLV. A t the tlesire of tho Chief Engineer for Water Supply, Mr. de Burgh, a scheme was prepared for

the electrification of the Mittagong Pumping plant in February of this year. I t is proposed that this work shall bo carried out when power is available from Port Kembla Power House as above referred to.

The eleidrieal plant recommended will comprise one pump capable of delivering 18,000 gallons per hour against a total bead of 365 feet driven by a 60 H.P . motor. The existing steam driven puiops will be retained as stand by plant.

BowEAL WATER SUPI'LY. ' A specification was prepared for the electrical portion of this work providing for an automatically

controlled station, by which, if adopted, when the Port Kembla power is available, the motors and pumps will be started at a predetermined hour by the action of a time switch, and will be shut down by au e.ectrical contact closed when the service reservoir is filled.

- . - GOULBDBH

04

GouLBURS WATER SUPPLY. The existing water pumping plant at Goulburn comprises an old-fashioned beam engine pump, and

a more motiern horizontal direct-acting pump, both supplied with steam from low pressure colonial type boilers.

A proposal was subnutted to tin- IVpartment by the IMunieipal Electrical Engineer to sulistitute for these punnis eiectrically-operatcd pumping plant, to be supplic^l with )iower from the Muidcipal Electric Supply mains and at the request of Mr. E. M . de Burgli, C'iiief Engineer for Water Supply and Sewerage, a report was furnished on this proposal in d u u R last in which it was recommended that funds be provided from water supply votes to the amount of £ 4 , 0 0 0 to cover the cost of the installation of two centrifugal pumps capalde of supplying .'{OfOOO gallons per hour against a total head of 220 feet, direct coupled to 70 H . P . motors, and about 2 | mi'es of 2,-300 volt transmission line. This sum also includes tlic cost of a new motor for the existing high level pump.

On the costs then obtaining it was estimated that a sum of approximately £ 5 0 0 per annum would lie .saved to the Municipality by the adoption of electric i>uniping. This saving would be increased under present conditions.

ALBURY. In my remarks under Albury above I refer to tli<' earlier negotiations willi a view to supplying

power to the Hun\e Dam construction works from the Albury Power Hou.se. When early this year the Council rejected the proposal it wa.s decided b» erect a power station a t

the site of the dam. The two ohi boilers from Port Kembla are to be removed, one to the power station and one to the quarry, the latter being worked direct from steam plant without the aid of electricity, and another smaller boiler being obtained for the power station.

After considering the merits of direct and alternating current, in viow of certain direct current lifting machinery available, the former was chosen for this work, anrl a contract has been entert'd into with tbe Australian General Electric Co. for tbe supply of two iSO volt direirt current steam electric generating sets. The electric generators will be supiilied by tiie General Electric Company of America and the engines and condensing plant by ?Iessrs. Kel ly & Lewis, of Melbourne.

STATE 5IETAL QUARRIES. In reply to a rojuest from th{> Manager of the State Metal Quarries, two reports wero submitted

dealing with the conversion of the Kiama (Quarries from steam to electrical working, the second one in considerable detail, showing that great economies can be cHected if power from Port Kembla is supplied for this purpose.

X.—"Work for other Departments. METROPOLITAN BOARD OF WATER SIIPPLY AND SEWERAGE.

Suhslalion. for the Pumping Station at No. 2 Cordeaux Dam. The exist ing automatic pumping plant a t the N o . 2 Cordeaux Dam used in connection with the

towns north of Wollongong Water Supply, originally carried out to my designs has been working successfully for nearly eiglit years and has given every satisfaction.

Of late yeai's, however, the increasing deinamls fmm Port Kembla and the mines along tho coast have resulted in the simiU plant priividi'd being somewhat over-taxed, and as there is no duplicate jilant, the Board has applied for a supply of power from the Port Kei.'ibla Power Station to be furnished to assist to maintain the sup(ily in dry weather. Consecjuently, a sub sUition building ba-s hocn designed and a contract let for a 100 k V A . transformer for transforming from 33,000 to 210 volts to supply power to a new motor-driven pump which ia being provided by tho Board.

NEW SOUTH WALES STATE ABA'rroias AND MISAT WORKS. Tlie 5,000 volt high tension switchboard, a (contract foi- wliitrh was let to Electric Eiiuipment

Manufacturers Propritdary Ltd., of Melbourne, in 1916, has been supplied and tho erection uouimenced. The completion of this contract has been greatly delayed due to tbe restrictions impo.sed on tho export of machinery, &c., from England during the war, certificates for export only being granted in cases of special urgency, and not being obtainable in this case.

WATERFALL SANATORIUM. A t the request of the Government Architect a report was prepare;! on tho prnpo.^od electric .supply

for tho Waterfall Simatoriuni. Tlu^ cnst of providing plant for tins Institution waa estimated at £ 1 1 , 5 0 0 apart from the neces:iary reticulation and other works to be provided within the Sanatorium walls. In reporting on the matter, I pointed out that this expenditure would be for a small generating jdant necessarily of an uneconomical type, whilst by extending the Port Kembla transmission lines from Wollongong to W^aterfall at a co.it of £25 ,000 , a line would be provided able to (^arn revenue all t h e way along the route, besides being available for tapping sources of power hitherto waste, by which I refer to the utilisation of the surplus heat and gases from the coke ovens on tbe South Coast which are at present allowed uselessly to run to waste.

SuUsequcntly I lie Bulli Sliii-e Council, seeing that it is a retailer ot electricity purchased in bulk fpiun ono of the neighboui-ing mines, expressed itself a.s prepared to supply the San.atorium. The price offerod being n>asotiable, T strongly recommended tho <jffcr for acceptance. In the future it will necessarily happen tlmt a Stcite-owned transmission linc^ will be run along the Coast, and bulk supply from the mines in the neighbourdood to municipilitie^ retiiiling, as in tho case in point, must be looked upon as a transition stage prior to the comph'te establishment of a properly controlled transmission system.

The cost of the necessary transformers, feeder cables, and switehgear for tbe Sanatorium, is estimate^l at £6 ,000 . Thus, if tho UulH Shire Ccmnell's offer be accepted, there will i-esuit a saving of £ 5 , 5 0 0 in capital expenditure, together with a very considerable reduction in annual charges.

NEWINCJTON

9 5

Date. Niiiiibcr rif

Ktitercd. D. C.i

\uivcastIo „ Sydney , Broken Hill

Cailia S'ydney ,. .. N ewoastle.. ivingsgate

1919. 7th NoveniL>er

25th 2oth

in2;i. sth January ..

\-ilh May 21st 2iiil June

Iloth Sections.

Practical tests were carried out at Newcast le , Sydney, Cadia, and Kingsgato, Mr. Brown acting as examiner on each occasion.

GKXBUAI,. Matters of minor importance only h a ^ during the year under review been referred for arlvice to

mo as Consulting Engineer t>o the Department of i l i n e s , t*i which position I was appointed in July, 1908, tho duty of Electrical Inspector under the Act having been added (larly in 1909.

Other ollicers of this branch, who are also Electrical Inspectors nndei- the Coal Mint's Act, are Mr. If. (i. Carter, appointed later In 1909, Mr. A. V\'. Bundock and ^Ir. A, C. Brown, both appointed in June, 1918. The extent to which these oHicers have been employed on Mines Department woik is set forth above.

XII.—Staff. Mr. J . J. Richardson, who left for Englanil in November, 191(!, for service with the Ministrv of

Munitions, returned to Sydney and resumed duty with the branch in November, 1919. Mr. Aust in Diamond was re-transferred to this branch in March, I9'i0. Mr. J. Rorison, Wb.Se., was re-transferred to the branch as Engineering Surveyor, his first duty

being tho carrying out of surveys for cixws country transmission lines. Mr. D. L. Davidson, L.S., was appointed Engineering Surveyor in connection with Ilydro-Electrie

Investigation in Ma}', 19 -0 . Tbe Drafting Staff was strengthened by the appointment of Mr. W. F. Dunn in December, 1919.

and Mr. A. B. Robinson in May, 1920.

Nswrsr.TON STATE HOSPITAL. The Btorago Imttory at Xewiiigton Ilaspital has been renewed. Owing to its proximity to the

hoik^r house tho existing battery-room was not in the most suitable position for a battery, and i t was decided to remove i t t o a largo disused undi'rground tank, Means of access t o t h i s tank h a d t o be provided. I t is worthy of uiontion tiiat when tenilers were caHed for tlie alterations t o the tank, those grratly i^xcoodod thi estimate. The work was, liowever, carried out within tho eatimatr by inmate lalwur under tho supervision of Mr. W . J . MeCalUon, of this branch, acting under Mr. Jeil'roy's msiructions, to tlie eomjiifte satisfactitm of the Hospital authorities.

The contract for the battery, which is sptxiifiotl t o be of (iOO ampen' hours capacity, was placed with a local ( inn , but it had not been completed at the end of tbe year under review.

Negotiations for the supply of power t o t h i s institution from tho t'ity Council's mains h a v o been opeiKul, i t is estimated t h a t a considerable saving will h-^ effected in the cost of power by cut t 'ng out the small and relatively inefHcient plant a t the Hosjiitil .

XI.—Special Work for Department of Mines. The following work has been carried out by t h i s branch for the Department of M i n e s : —

ELUCTRIOAL INSPKCTIOX OF COAL MINKS. Periodical inspection of the electrical equipments at the various collieries throughout the State

have been carried out by Mr. A. C . Brown, B.E. (Adelaide), who i s an electrical inspector under t h e Coal Mines Act. The total number of collieries with electrical equipment working during the twelve m o n t h s wan 5.1, and in all 8(5 inspections were nuide.

A prosecution against t h e manager of the Mt. Kembla Colliery for breaches of t h e Electrical Special Rules, heard at Woilongong on the 5th September, 1919, was attended by Mr. A. W . Bundock, w h o i s also an electrical inspector, as prosecution otfieer and chief witness, This resulted in convictions being rceorded on two charges, whilst two were withdrawn.

K.XAMIXATIONS FOR CERTIFICATE OF CoMrETESCV AS MiNE ELKCTIUCIAK.

I wa^, as usual, appiiintod an examiner for the period untJor review, t(tgethcr with Mr. A . E . Warburton and Mr. J. K^lllin^, with Mr. H . (r. Carter as emergency examiner. Mr. Carter, however, tmdertook the responsibility on t!aeb occasion.

Examinations were held a t Ultimo on 15tb July, 1919, a t which out o f 5 candidates 3 pas.sod, and a t Newcastle on the L'Oth January, 19'JO, when 4 out of 7 candidates were suecossful.

EXAMINATIONS FOH CERTIFICATE OF COMI-ETEXCT AS ELECTRIC MOTOR DRIVERS. Papers were set and corrected by Mr. A. C. Brown for examinations at the various centres, with

results as t;ibulated below :—

9 6

Government

Mr. F. S. Hebblewhite was appointed in February, 1920, but left in May at short notice in order to take a much better paid position outside the service. The vacancy was not filled by the Public Service Hoard for three months, Mr. W. H . Rickard being appointed in August , 1920.

I n my last annual report I referred to the difficulties experienced during the war in carrying out work owing to changes at short notice involving continual rearrangement of tbe staff, and owing to tho office being undermanned. W i t h the return of a measure of stability the work of the branch has in accordance with pre-war practice been reorganised, the names of the principal officers, with their respective duties, being as follow ;—

Name. Office. Mr. H G Carter B E (Sj-dney), ABSoc .Mem.InstC.E., M.I .E, I. p , ; , , , ; j A^siBtant.

(Aust . ) , D.S.O. (late Lt.-Colonel, A . I .F . ) . J ^ Mr. A . Diamond (late Lieut. , A . I .F . ) . . . . . . . . . . . . Invest igating Officer. Mr. J. J. Richardson, Assoe .M.I .E.E. . . . . . . . . . . . . I n charge of Drawing Office. Mr. C. S. Jeffrey, Assoe.M.I .E.E, , AssocM.I .Mech .E , , Assoc. ) Steam and General

Amer.LE.E. , A . M . I . E . ( A u s t ) . / Engineering. Mr. W . A. W . Bundock, B.Sc. (Manchester), As.soc.M.I.E.E., ) Transmission Lines, Sub-stations,

Assoc .Amer.LE.E. , A .M.I .E . (Aust . ) . ) Transformers and Switch Gear.

fAuIt f"^"' } Hydraulic Engineering.

The remaining officers of the branch, who are highly trained m tlieir respective duties, are, accord­ing to the work in hand and to their respective experience and suitability, placed under the instructions of the officers named above.

Owing to the present inadequate remuneration of members of the staff, after careful consideration of the relative work and responsibility of each officer and a comparison of salaries of officers in similar organisations elsewhere, I forwarded a report in May last recommending material increase in every case. This report has, I understand, been referred to the Salaries Committee appointed under the Public Service (Amendment) Act , 1919.

For the .satisfactory progress of this State it is essential that tho Department should have profes­sional officers of the highest standing. The branch has lost many good officers in the past owing to higher .salaries being offered to them outside, and is still in danger of losing some of the best of its officers at short notice. Consequently, it is of urgent need that action should be taken as soon as possible to prevent repetition of the disorganisation to which I have previonsly referred as militating against the smooth working of the branch.

I n conclusion, I wish to tako this opportunity of acknowledging the whole-hearted devotion to their duty of my staff and their loyal support to myself during the year under review.

W M . CORIN", M.Inst.C.E., M.LE.E. , M.Amer.I .E.E. , M.I .E.(Aust . ) ,

Chief Electrical Engineer. The Under-Secretary, Department of Public Works,

24th November, 1920.

97

Government Dockyard, Newcastle. The Government Doekynnl at Newcastle has passed through wliat must be conceded to be a very

»;ii(!cessfid jear. The number employed on lat July, 1919, was l,(i67. This had inci-eased to'2,240 on .'10th June, 1920. Shipbuilding formed the main liasis of activity, 23,200 tons of shipping being launched during the year. This tonnage was made up as under :—

- Ship. Tonnage. Launched.

" D i n o g a " . . . t . . I l l 5,600 17 October, i m . " D i l g a " . . . ... ... 5,600 15 November. 1919".

Eurelia " ... ... 6,000 10 Apri!, 1920. • " Enoggera " • • • 6,000 25 June, 1920.

Of these the " D i n o g a " and the " Di lga/ ' having successfully passed their power trialiJ, were hamled over t o the Commonwealth authorities, and are now in commission. Also the " Dehingra," 5,G00 tons, which was launchiHl juvit prior to the close of the previous financial year, was completed and hantled over . This made a t o t a l of 16,800 tons of shipping actually completed and delivery taken during the year. Since tlie year's close the " Eurelia " has completed her power trials, and has l>een handed over .

The launching of the ** Enoggera " was made the occasion of a function wliieh was honoured by the presence i)f His Royal Highness tlie Prince of Wales, by whom the ceremonv of launching was performed. Nearly 8,000 people visited t h e Dockyard as the guests of the State (government to do homage t o His Royal Highness, and, incidentally, to witness the ceremony.

The *' Kronmngn," 6,000 t o n s , is rapidly approaching reafline.ss for launching. The completion of the " I'lromanga" will mark the finish of the Dejiartment's contract witb t h e (^orainouwe;ilth, which wa» (Mitered into in lOlS. Negotiatiims, h o w e v e r , are still in progress with tho Commonwealth authorities for the building of three vessels of 12,800 tons each.

Tliree steel trawlers were completed and Iiandefl over to the Statt> Trawling Industry, which concluded our contract with that Department for four steel trawlers.

The w o o d e n trawler " liar-ea-mul," Imilt in Sydney, and sold to the Queensland Grovernment, was engined at the Dwkyard, and, after successful trials, handexl over.

Practically all the necessary repairs and maintenance work in connection with the Dredge Fleet were carried cmt at the Dockyanl. General repairs were also effected to the trawlers belonging to the Stiite Triiwliii;^ Industry, in n d d i t i o n t o a lar^e amount of miHCellanooi is repairs t o Government plant and

' for private owners.

Full luivantage has been taken of the decision arrived ut bv Mr. 1^11, when Minister for Works, t o make tho Dockyanl's resources available to private firms and individuals. Negotiations aro in progress with several shipowning firms, not only within the State but beyond, which, if brought t o successful finality, will mean tho placing of large constructional orders with the Dockyard.

A big trade has been built up in cast-iron pipes for ga« and water supply. Substantial orders have been received from hical and Interstate Gas Companies and Water Supply Boards. In addition a considerable export trade has been establi.shed, various municipalities in Java liaving become substantial purchasers.

A large locomobile built t o the order of Noyes Bros. Ltd., for the Mount Pleasant Coal Mining Company, is nearing completicm. This engine, which is of 250 b.h.p., i s tbe biggest job of the kinif yet turned out in the Commonwealth.

Extensive ordeifi h a v e been carried through for the Broken Hill Proprietary Co. Ltd., their orders covering a wide range, s u c h lus rope fly-wheels, stoves for blast furnaces, crucibles, i t c , &c.

A large contract was executed for the Ryde Pumping Station, which comprised over 400 tons o f fabricated structural steel.

In addition to providing the main engines and auxiliaries and accessories—such as condens<Ts, evaporators, propellers, shafts, weir type pumps, electric l ight sets, winches, izc, &c.—for the ships which have been built at tho Dockyanl, it has also carried out various sub-contracts for private engineering firms which hold contracts for building Commonwealth ships in other States.

The wages paid for the year amounted to £397 ,347 , and the turnover and works in progress to ^95.5,000.

H. W. F L A 3 H M A N , Secretary.

Testing 7 3 8 7 — 0

9 8

Test ing Branch. DURING tbe past year tbe wide scope of the work of the Testing Branch has been fully maintained. The material inspected was valued at £SGy,198 Is. lOd. This is lowci than the value of the material inspected during tho preceding year, owing to the output at the steel-works at Newcast le being somewhat reduced on account of the shipping restrictions, and also due to the fact that the cement works were short of water owing to the drought.

Reference is made below to several of the sections of work carried out b y the branch, which may be classified under the headings of Inspection at the Steelworks at Newcastle and Litligow, and general testing work carried out at Head Oflice.

I n addition t^ the inspection of iron and steel for the Government of N e w South "Wales and for the Railway Commissioners, it has been the practice for some time past to carry out inspection work for other Government authorities, fees for the latter being charged. The work carried out for the past year included the inspection for the following public authorities:—

Victorian Railw.ays—Rails and fishplates. South Australian Rai lways—Rails and fishplates. South Australian Stores Supply and Tender Board on behalf of the Federated Malay States

Rai lways—Rails and fishplates. Wes t Australian Rai lways—Rails and fishplates. Commonwealth Defence Department, on behalf of South African Rai lways—Rai ls and fishplates. N e w Zealand Rai lways—Rails and fishplates. Consul for Netherlands, on liehalf of Nederlandsche Indie Rai lway—Rai l s and accessories. Noyes Bros., on behalf of the Batavia Government—Cast-iron pipes. Australian Manufacturing and Importing Company, on behalf of the Batavia Water Supply—Cast

iron pipes. Agriculture Department—Miscellaneous steel for silos. N e w Zealand Public Works Department—^Miscellaneous steel bars. Commonwealth Naval Department—Miscellaneous steel bars.

Neiocastle Steelworks.—Tha total steel inspected w.is 51,7-16 tons 1 cwt. 2 qr. 6 lb., valued at £ 6 2 9 , 3 2 1 8s. lOd. Inspecting fees, amounting £ 4 1 6 9s. U d . , have been received from the authorities. The table given below shows the total quantity of steel which passed through the hands of tlie Depart­ment's inspectors. The cost of inspection for the year is slightly higher than that for last year, and amounts to 9jd. per ton. The increased coat is due to the rise in wages now being paid under the Basic Wago Commission, and to alight decrease in tonnage carried, due to .shipping restrictions.

Lit/igow Steelworks.—The quantity of steel ins'iected and despatched was 7,603 tons 10 cwt. 1 qr., valued at £ 8 5 , 3 2 9 5s. od. Fees amounting to £ 4 9 l i s , 7d. have been earned in connection with tho inspection work at Lithgow for outside authorities. The cost of inspection, which is naturally higher than at Newcast le owing to tho slow rate of production and to the fact that tbe bulk of the inspection consists of testing numeious small orders of bar steel from 1 cwt, to 10 tons, amounts to Is. 6^d. per ton, tiii.s being an increase on last year.

Six thousand seven hundred and seventy five pieces of earthenware pipeware were also inspected by the Lithgow inspectors at a cost of l^d. per piece.

Work Carried out at Head Office.—Inspection of points and crossings under instructions from the South Australian Store Supply and Tender Board.

Iiiapcction of a, large contract of points aiul cros-sings being manufacturetl for the Federated Malaj' States Railways, is being carried out, and fees will be received for this work upon completion of the contract.

Three hundred and eighty-four samples of cement have been received for test, representii.g 575,500 53,418, The fees received for this work amount to £ 1 , 1 5 2 , This i s somewhat less than

CEMENT TESTING, ed and eighty-four samp

bags, valued a t £153,41H. The fees receive-the preceding year owing to the restricted output at the Cement Works, caused by lack of water.

MISCELLANEOUS INVESTIGATIONS, The technical staff of the Eranch has been fully employed during the year on scientific tests required

by branches of the Department, and also by the public. One hundred and fifty-one special investigations have been uiitlertakcn, a number o£ which have been carried out for tho general public. Fees havo been obtained amounting to £ 8 9 12s.

Extensive investigations have been carried out regarding concrete for sewerage and water supply construction, roofing material, insulating materials, oils, paints, ite.

For some eonsidorablo time there has been a marked shortage in the supply of roofing slatea and tiles, and this, combined with the increased cost of these articles, has resultet! in numerous bi tumen substitutes being placed on the market. Samples of all these materials were obtained, and during the past year extensive investigations were carried out. These are now being finalised, when a report on the subject will Ije issued.

A t the request of the Premier, a series of investigations are being carried out as regai-ds the, comparative qualities of roofing slates produced from local (juarries against the best imported English and foreign slates ; it is expected that these tests will be complete at an early date.

During the preceding year Mr. H . E. Curry, an officer of this branch, was, at the request of the Water Conservation and Irrigation Commission, sent to tbe western districts to undertake local investiga­tions dealing witli the corrosive properties of artesian bore waters. These investigations were continued during the present year, but owing to the vote becoming exhausted they were discontinued in November last. I t ia anticipated that, when funds are available, the work will be continued and finalised.

The

99

The plant required to equip the road-material testing laboratory is being delivered by the eontractors, and is being assembled as it comes forward, and it is anticipated that delivery and erection will lie completed in the course of a few months. •

During the past year the staff in the instrument-maker's workshop has been fully employed. One hundred ami thirty-seven requests for repairs and renewals to departmental instruments were undertaken.

TABLE of Steelwork Inspection.

N.S.W. (iO-lb. Rails .SO-lb. 90-lh. „

lOO-Ib. „

60-lb. Fishplates 80-Ib. <IO-lh.

lOU-U).

"New /(^alaiid Raila Houlh Auatrahan lEails Koiith Africnii Raila Federated Malay States Rails Victorian Raila Wustoni Aufitraliaa Rails

South AuHtralian Fishplates I'Vtlerated Malay States Fishplates \'iotorian Fishplates

Structural Steel Miaoollaneoua Steel Bars. Pig Iron Cast Iron I'ipes

Total for Newcabtle

N.S.W. flO-lh. Rails. SO-lb. ., .

,, CO-lb. Fishphites Miscellanouua Steel Angles and Bars Ti:: lion

Earthenwaro Fipeware, C,77.J pieces

tTeai Offict— Ceniont Testing—384 samples eriuals 575,530 bags. Miacellan(ioua Investigations, 151 jobs Mechanician Shop, 137 jobs

Total value of material inspected

Weight

T. 6,839 S,455 6,754

15 1 10 1 11 3 11 1

858 015 251 310

6 1 10 3 8 1 1 2

2,S52 1,294 5,756 2,ti62 1,512 2,009

S 2 14 0 12 1 17 2 G 1

1(5 2

16

New Zealand Fishplates 129 203

76

17 2 2 2 3 2 4 1

3,954 1,269

!)43 300

11 1 3 3 0 0 0 0

1,190 4 0 10 628 18 0 3

Totftl Wcijtht. Estiiiiftteil Value.

T. c. q. lb.

26,374 8 2 27

2,035 13 2 1

16,0S8 15 3 21

775 S 0 23 3,9.54 11 1 18 1,269 3 3 0

1I4S 0 0 0 300 0 0 0

51,746 1 2 6

24 8 2 11 .1,.534 8 1 4 4,275 11 1 9

1,819 2 0 13 24 8 2 11

1,5:U 8 1 4 4,275 11 1 0

7,6.53 10 I 0

Steel Inspection Fees received from other Govemmenk Authorities Cement Tcpting Fees , Misi;i;llant:oua Inveatiyation Fees from General Piililic

Fees

£ 8. d.

292,750 14 4

32,720 13 0

193,054 9 0

13,572 7 6 60.001 10 0 25,3S3 15 0 8,532 0 0 3,300 0 0

629,321 8 10

15,K82 7 1 291 18 4

r.0,CS0 0 0 38,475 0 0

85,329 5 5

l,or.u 7 7

153,488 0 0

869,198 1 10

466 1 6 1,152 0 0

89 12 tt

1,707 13

Is t August, 1920.

B E R T R A M J. S M A R T , B.Sc.(Lon.), F.C.S., Superintendent of Testing and Inspection.

lOQ

Survey Di-alting Branch. T HAVE the honour to submit herewith a statement of the works in connection with which survey ilrafung has been carried out during the year ending 30tli June, 1920, with tiibulated information as_ to Staff employed, detail survey, jdan records, plan mounting, heliographing, expenditure, and receipts derived from sale of plans.

Murray River Walers,~Hnme Dam. Sydney Water >S'Mj)p/y.—Cordeaux Dam, Avon, and Nepean River Schemes. Country Toivns Water Svpply.—ATmidixlv, Berry, Bowral. Ballina, Cootamundra. Coulburn, (Grafton,

Grenfell, Henty , Hunter District AmpliHcation (Chichester Storage Scheme), Junee, Kandos, Katoomba, Lismore, Lithgow, Mohmg, Mount Hopo, Muswellbrook, Parkes, Picton, Portland, Soutli West Tablelands, Stockton, Tamworth, Tocumwal, and Werris Creek.

Bridges.—Georges River-Taren Point Site, Tom Vgij's Point Site, Kangaroo Po in t Site, and Middle Harbour-Spit Site.

National Roads.—Anztic Parade, Broad Road, Botany Road, City Road, Cook's River Road, Canal Road, Gardeners Road, General Holmes Avenue (Botany to Koekdalel, Jenolan Caves (Roads in vicmit}-). New South Hfad Road, Parramatta Road, and collation of partieulnrs <if main .schedule roads throughout the State.

Sewerage.—Hu\li Hospital, Canterbury-Campsie-Belmoreand Hankstown, Cessnock, Coft.Ht Hospi ta l , Lithgow, Moree Hospital, Narrandera, Newca.stle and Suburbs, Northern Suburbs Ocean Outfall, Portland Hospital, Wes t Maitland, Western Suburbs, and Yarrangobilly Caves House.

Stormwater Cluinnets.—Cimtvrhury, Jenolan Caves, Liverpool, Shea's Creek, and Waverley Swamp Drainage,—Glenrock and Tennessee, and Nowra. Harbours and Rit^rs.—CUxvnce River,|Cook's River, Hastings Rivc-r, Hawkesbury River, Kiama

Basin, Manning River, Nand)ueca River, Newcastle Harbour, P.^rt Kembla, Port Maccjuarie Harbour, and Richmond River.

Hydro-Electric A'cAemct.—Burrinjuck, and Nymboida. General.-Ba\m»m Hospital Site, Bankstown Sanitary DepOt, Cranbrook Subdivision, Charlestown

Police Station, Dacev Garden Suburb, Gladesville Police Station, Homebush Abattoirs Iron Cove l iridge Approach, ^re^ewether Police Station, Montague Island, Mu. willundmh Quarry, Mulwaja Bn. lge Approaeh,

Welfare Centre, and Woodford Island Quarry. Wall Maps.-WMi^ Harbour Bridge at the "The Spit," Rose Bay Reclamation and Improvements

and Water Supplv Developments of New South Wales . Miscellaneous drawings prepared, including plans, sections, diagrams, capacity curves, and tables,

reach a total of about L'04, hi ad<Htion to which 174 plans for resumptions, easements, &c., ha -e bt furnished. Tbe number of Detail Sheets drawn was thirty-eight. Ten revisions were made and btty-tracings completed.

The number of files of papers that have lieen dealt with is about 4,500. The following shows the expenditure :—

been six

lSUC-17. llUT-18. lui'j-ao.

Drawing Office

Salarips Contracts Materiiils

Salaries. Materials

Salaries Materials

Heliogi

£ 8 . <l. 6,489 0 0

56 4 10 14 8

£ B. <1. 6,910 3 10

32 11 8 28 3 10

£ fa. d. 7,210 n 6

277 13 2 32 13 1

£ s. tl. 8,267 14 4*

271 9 1 64 16 1

Heliogi

£6,556 0 0 6,079 19 4 7,520 11 9 8,603 19 6

Heliogi apking and P 734 17 0

1,119 2 6 t

Ian Mounting 099 0 0' 880 5 6

64S 3 4 876 7 0

728 1 8 1,04'i 0 6

£1,S53 19 6 1,579 5 6 1,524 10 4 !,773 2 2

Flan Roo 463 10 0

10 0 0

m. 506 0 0

10 0 0 543 5 6

10 0 0 690 3 4

10 0 0

£473 10 0 me 0 0 553 5 6 700 3 4

Mechanician.

Salary 137 10 0* 300 0 0 75 0 Og 137 10 0* 300 0 0 75 0 Og

£9,020 19 6 9.375 4 10 9,673 7 7 11,077 5 0

• IncreaM oiused through i>»vineiH to all officers •<1 adiiition of basii- wnf-c. t IntTcaee MUsed throueh extra cost of paper and acid. t Salary for (iii inoniha ainue ir»n§(er on 1st JanuAry, IBK.

I TrMsferred to Testing *ud Inspectinc Bruicb, 1st Ootober, 1816.

101

AMOUNT derived from sale of heliographic copies of Detail Sheets, Miscellaneous Tracings, and plans and lithographs of Stundard Designs for Bridges.

1016-17 1917-J8 1918-19. 1919-20

Heliiw to Rnilwuy Comtnisaiouurs ...

£ 8. d. 4> 15 6 40 4 0

lii-l 3 11* 2 7 0

£ 8. d. 11 0

03 5 0 251 10 7

1 12 0

£ 8. d. 33 2 0 47 6 0

244 13 1

£ 8. d. 45 19 0 42 18 :t

511 3 3

£ 8. d. 4> 15 6 40 4 0

lii-l 3 11* 2 7 0

£ 8. d. 11 0

03 5 0 251 10 7

1 12 0

£ 8. d. 45 19 0 42 18 :t

511 3 3

254 10 5 371 18 7 325 0 1 £600 0 6

rho Under Secretary.

• For [u'liixl of six iiionilia.

D. R. A L D E R T O N , Chief Survey Draftsman,

24 July , 1920.

[8 folded plans and 23 pages photographs.]

Sydnpy : Wimani ApplBfrste Gnllick, Oovemment Printer—IKa

7 3 8 7 — H

Cordeaux Township, showing Workmen's Barracks. 17 2 20.

Cordeaux Dam. Grouting the Foandafions.

Chichester Dam. 5,10, l9 .

Hume Dam. Inaugural Ceremony, 28 12 19.

Goulburn Sewerage Treatment Works.

Goulburn Sewerage Treatment Works.

Teachers' Training College, Sydney: Interior ot one of the Laboratories.

The Coast Hospital, Sydney: View showing the Entrance to one of the New Pavilions.

The Coast Hospital, Sydney: View of two of the New Pavilions.

The Coast Hospital, Sydney: Interior of one of tlie Wards.

Two 90 rr. timlwr tnittes KleveD 3(1 ft. plain be&m spans ... Two 28 It. „ ,. .. ...

Total length of deck li> It. deck width between ker t^

Rankin's Bridge. ft. in.

... 180 0

... 330 U 56 0 3 0

0

Contractor, C. J. Foord, Completed. 24/7/20. CoDtraot cost, £7,494 69. Jleplacea old atnioture boUt ia 1S73.

Barrington Bridge at Harrington. Two 90ft. timber truss spans; three 30It . plain beam spans; 15ft. roadway in the clear.

Launch of " Enoggera," 6.000 Ions by H.R.H. the Prince of Wales, at Government Dockyard. Newcastle, 25(6/20.

Launch of s.s. " E n o g g e r a " 26'6/20. Vessel just taking water.

Launch of s.s. " Eurelia," 6,000 tons. 10 4 20. First of E class type, shelter deck, launched in Australia.

Erection of two sets of Marine Engines for Commonwealth Ships, D and £ classes, 25 in., 41 in., 68in. diameter x 45 stroke. 3,400 i.h.p. Height 23 ft., length 21 ft. 3 in-, nidth 16 ft. Weight over 100 ton each.

General Foundry. The largest and most complete foundry in Australia.

Central Railway Station, Sydney: Prlrcip.'^l Elevation as seen from Belmore Park.

Central Railway Station, S y j n e y : North-west corner, showing Clock Tower.

rrii i r r 171 ffi KIT

h i 11

1 si II

1

Teachers' Training College, Sydney: View from the south-east.

Teachers' Training College, Sydney: Detail o( Principal Entrance.

L O C A L I T Y P L A N

S c a l e C t m i f i g IO IO

C H I t F C U C . C T R . I C A I - E N G I N i e t R .

P o w e r S t a t i o n a z i f c - ' ^ o ' F l o o d L e v e l

a a o s - r o ' ' N o r m a l ^ ^ a t * r L « v c l

P R O F I L E O F P I P E L I N E

S c a l e ? 1 0 0

D E P A R T M E N T O P P U B L I C W O R K S . N . S . W .

D O R R I G O H Y D R O - E L E C e D E V E L ^

L o c a l i t y P l a n &

P r o f i l e o f

P i p e L i n e .

9-14

PHOTO-UTMOORAPHED BV W. A. QULUCK, OOVERNMENT PRINTER, flVDHEV. N.S.W.

C O U N T Y O F H A R D E N

O e P A R T M t N T O F PUBLIC W O R K S . N.S.W , j

BARREN JACK HYDRO-ELEC^ DEVEL-aTJ

T r a n s m i s s i o n L i n e s , •

L o c a l i t y P l a n &

P r o f i l e of P r a s e u r e P i p e 2 4 5 - 6 4

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Power S r a t i o n

L O C A L I T Y P L A N S c a l e "" ^

.Balance Tank

C L A ^ E N

; SOUTHAMPTONI

c o u n t J y

a E l l a n d

General W-L. 3feg-3l'

P R O F I L E O F P I P E L I N E ,

S c a l e "

KOUKA NOOWfEi

F I T Z R O Y

T R A N S M I S S I O N L I N E . Miles K

D E P A R T M E N T OF PUBLIC WORKS. N.S.W.

N Y M B O I D A H Y D R O - E L E C S O E Y E I _ i ^

T r d n » m i » » i o n L i n e , /' " ^ ^ S ^

L o c a l i t y P l a n 8. ( | | 6 . | 8 P r o f i l e o f P i p e L i n e . )

PHOTO-L'TWWtaPHED BV W. • . OUILICI I , O O n i l H t l l H T H I X T I I t , t T D H t V , H . C W . :

Y X I L G I L B A R

^ ^ ^ ^

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7 ( S T A W N i

ft.,

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A7£/?/v ^^ok^ A3oi/r 6.000 ci/s^cs

L O P M A N H U R S H " !

G R A F T O N

^€i/i/f£NC£ /f/i<f>p Hydm-Electric D e y e l o f m e n t -

Miu. o I a a » « ? f ? ! 2 U -|? ""^

1 1 2 0 -47

7387

7 3 8 7 P M O T O - L I T M O C * ^ H £ D BY W . * . C U L O C K OOWBtlMeitT P R I H T t H . B r D H E V , O . S . W .

S y d n e y W a t e r S u p p l y C o r d e a u x D a m

Mass D iagram of R u n - o f f of C o r d e a u x R IVER Scale, 20 ,000 Million Gallons one inch vertical.

Calendar Year - •• - horizontal.

C o s t - Sa f e D r a f t C u r v e Scale, fOO.OOO Pounds Sferling fo one inch vertical.

Half a million | a l lon3 per day to one in horizontgj.

Horizontally hatched porhans show periods whBf) fi&SBrvoJr of 20, SW milh'on gallons capacity tvas o^rfhviin^

Safe - draff figures are noli alloreing ibr 3 3'depth of loss by evapor^ion but not altomn^ for reducfion in ttiB efficiBncy of fhspcct

- Millions of Gallons B U ^ ' ^ ^ M£J}. - faillms GaiUm per day The term Safe draft as representing fhe amount of water fin trillion ef_f3ffons per da/) which It is estimated can be drawn from a reservoir durin£3 selected period of tow l-ainfall is herein substrtuted for the term efficiency as used in MrE.M.de Surjh's report of September 2019J8.

340 000

320 COO

1888 I 1889

S Y D N E Y W A T E R S U P P L Y

A V O N D A M

M A S S C U R V E O F R U N - O F F O F T H E A V O N R I V E R Scales 30,000 Milltxin (iallons to t inch Verftcal

I Calendar Year " • . . . Ho r i zon ta l

A N D

C O S T - S A F E D R A F T C U R V E Scales 50,000 Pounds sterling ID I inch Vertical

Half a Million gallons per day to I inch horizon+al

The term Safe d r a f t " a s r e p r e s e n t i n g t h e amount of wate r (in Million of ga l lons per day) which it .s estimated can be drawn from a reservoir during a selected period of low rainfall is herein substituted for the term efficiency a s used rn MfE.M.de Burjghs report of September 26!!' 1918.

1888

Notes Horizonially hatched portrons stiow periods of overflow of a Reservoir of 4$.Z00 Million gallons capacity Safe draft figures art nctt 3Mov^in| for 3'3" m depth lost by evaporation per a n n u m i '" but not allowing for the reduction in the efficiency of fVospect

M. G • Mtliions of Gallons M.G. D - Millions of Gallons per day

ifB draft in.._... Millions G llorfs per

Notes. — I r i ' I i ' Figures io left of black circles denele tieight of storage to Full Supply level Pigures lo nght • - - • contents of storage in millions of gallifhs hbures within circles denotes capital cost In thousands of pounds (sfg) per M.G D safe draft

' I t . I I • I t I 1 ,

1893 1 1300

allowing "or evaporat:

t i l ' ' Rtiparcd for ttie mformahon of the Special Board of Spney V/ata Supfrfy Augmentation under instruction from W E M d e Burgh Chief Er^meer tor Water SuppfyantfSBwerage, from data at -

' ' present availabfe.

fVog ssional Secretary /9>o

C O

n

Sfijoo

CO CO

o

540,000

450,000

420,000

390,000

360,000

330,000

300.000

270.000

240,000

210,000

180,000

150,000

120.000

30,000

60,000

30,000

d

C_3

CO c: o

o I

cz

-C3 CO CO in

PHOTO- I . ITHO(»I«PHEO-BY Wl A . . 3 0 1 . U C K , Q O V E R N H E N T PHIHTEB, SYnHEY, N.S.W.