• • I' . HI s tonc Amcri ccn Enqmeeonq Record Deportment of the ln t enor, Washington, D.C. 1 SITE I u F'l0 HAER INVENTORY • Pi'!IORIT( County Engineer Chelan County Courthouse Wenatchee, Washington 98801 -OU', Ti rl.l,t.lE 4 rJlI,.rjGERr:~:~·.':'. -IC',' ~'(lS DNO OUNI(,.r~/" • Bridges, Trest1es"-L--,a",n",d:.....:A=u",e",d",U::.:C::.:t::.:sli7t6110i-,3:-17, ;o;;,,'EE-~l--i,;;-. ;;;~~:;;':;r'rc"~~,:::>:z:',,: ;,,','7' :~ .. :;;.O~E_~".r~:::.,~=.,~=-=::::t:o~b~e~r;::e=p:;:l=a~c;::e=d:::=~::=;::; TRUSS: Steel 1907/00 --_.-,----'---'-.-'-- : "::',~:-, :. . '/ . County Oesignation Number: 306 Chelan County 'J (J'I'·'FH".:'::";:'~~:: 01 d #15 West Monitor Bridge 1 mile llW of Honitor c'.:::.,:.c:-=c--.--~.......".--- tnSTATf W A ::"""",;".'10 l~,r.·"::-".:C( C'~"N" 00 Chel.§.!l. LJ1gnitoL- __ 11 ';1TEA[)QREss,sr~E~T ,', J .-' __ .i!o...L2_!:-",,-, ,c:. ''',sC-r·',J,,~., -'--;:Oo'·.::~-'--;O"'"-"-'--;O=-rl-'::8-S --.-J O =-"-'-EE-'_-'--=o=-'-"-' =OL N =ps:::'-.....L=o"!c- L6 ...J Crossing: \'Jenatchee River susvr v-, Dcor.~ Osr ...re OCOLlNTY Dlt J :::._ OOTHER S.T.R. 11 23N 19E o .... '~'.- ., ot'Tt",'OR INTACT OENVIRONS INTACT "-=:,, , W':: 0 0'''"'''_ Cashmere, Washington <, • 1 0' .' > 0 0,· ..,· _ CU,l,D ~_tlA.'.lf ,"0')'\(.'0 ';O:~'::P''-)l'" "i 1:0;·' '0 _'J'~'J,)~D z: ~.-, ",l, " )', _. . .__ -.lHAER/I,ashington State Bridge Inventory '3;,OOESTR(;(E: dSOOEMOllSHED 7130 AI.li:.HEO DATE J October 1979 -lisa Soderb:=e~r~g=--_ . ~,l ',en,l-TII:,'. ,l,.'.:J B'\:~ '.:.:;_ ,', ~ _ c,: .-, .... , ,'.1: l..:l,,'," :~ ",~':" _ ~. :'1, ~).. I E.S. ,....s· ::. ::. _ ":"'-' _•.• S,C''\, ,."",L'. ','. ',~:';ERIA~S £<T':",-E':'..,-".'o·.' :"'~".l",,-)pTr,~,';,,,.-.t,::>":: c',.· ::"",.; q: In 1907, the Puget Sound Bridge and Oredging Company constructed a two-span steel pinconnected Pratt truss over the Wenatchee River. This 320 foot structure consists of two 140 foot steel trusses, and two 20 foot timber trestle approach spans. Each truss is composed of seven 20 foot panels, and rests on two pairs of riveted steel cylinder piers which are filled with concrete, and are braced by two eyebars with turnbuckles. During the early 20th century, these riveted steel piers were a common, economical means of supporting a bridge. The standardization and widespread use of these concrete-filled cylinders is reflected in J.A.L. Waddell's book, Bridge Engineering where there is a diagram and description of piers identical to the West Monitor Bridge piers. The.bridge supports a timber deck which is 16 feet wide, curb to curb. Of the ten existing pinconnected Pratt trusses (with parallel chords ... lies L.J1oni.to r ..Br:i.dge...and..... the.. L S.t.re.e.LBri.dge...J.lL£alOllse appe.a.r:.. to be .the.......o.L\JC=~..lUl'"-==~.l..J.J=:l.L.t:lIJWlJI="'-.!u..L _ '" ·;"'Irjn,:. "->,, pl=I'.<,E·,·:'.' \AOAPTIVEUSE _~} dge/vt:.h}c.~!.ar __ ..... _... __ . .__ l!?~!..cJ.ge/..':'eh~~~r .. 'J ~[<-tPF~H.~~ •• ,I'",-} ..,r.t.~;';::'~;O~·I'.~', ,'~r,<,·.'·,A\· ')'.;:. '. ",:r,r.,,;r~,f.~ Chelan County BridQe Files. J.A.L. I'iaddell,Bridge Engineering, 2 Vols., (New York, 1916), 1:1027. ICONIOVERl -;-;-;-;-h~'::-'-'-RI-"-"-,l~------~ -,-- .. r-, '-',~C-R\-,,-o-c-'~:-F'2 P(IElI'~ zr : t ': ''l'LITf 0 ,[S ~IMI!~-) fJ.:o .',.,H:T[U ]3 EDITOR '-'01' ')I,,(I(JP~ 0 ('~> e. 1 IN IWI I 0'.') 0 r.:», :J..... INDEXER -.,",7·,,"",,"","',0"',,',,''''N''',,''I'''''',·'''',0'''',,''-·0'',,'''''·'''·,,;:::,-.-._~~:~-l"-!D...1,-'.o'-L_L'-<'-M-'-""--'--"--'='-':"':"'_--"-='--'c..:..=c..:..-----o-,s-,e-,c-,-,o-N-o'Jr--r-I"Ir-1"-+-rr-.-,+-+-1 34 HlIISt60 II/'}
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I'historicbridges.org/washington/oldmonitorbridge/reports.pdf · 11 DESCRIPTION AND BACKGROUND HISTORY INCLUDING CONSTRUCTION DATECS) HISTORICAL OATfeSI PHYSICAL "'MENStONS ... B.
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I'. HI stonc Amcri ccn Enqmeeonq Record
Deportment of the ln t enor, Washington, D.C.1 SITE I u F'l0 HAER INVENTORY• Pi'!IORIT(
County EngineerChelan County CourthouseWenatchee, Washington 98801
In 1907, the Puget Sound Bridge and Oredging Company constructed a two-span steel pinconnected Pratt truss overthe Wenatchee River. This 320 foot structure consists of two 140 foot steel trusses, and two 20 foot timber trestleapproach spans. Each truss is composed of seven 20 foot panels, and rests on two pairs of riveted steel cylinderpiers which are filled with concrete, and are braced by two eyebars with turnbuckles. During the early 20th century,these riveted steel piers were a common, economical means of supporting a bridge. The standardization and widespreaduse of these concrete-filled cylinders is reflected in J.A.L. Waddell's book, Bridge Engineering where there is adiagram and description of piers identical to the West Monitor Bridge piers. The.bridge supports a timber deck whichis 16 feet wide, curb to curb.
Of the ten existing pinconnected Pratt trusses (with parallel chords...lies L.J1oni.tor ..Br:i.dge...and.....the ..L S.t.re.e.LBri.dge...J.lL£alOllseappe.a.r:..to be .the.......o.L\JC=~..lUl'"-==~.l..J.J=:l.L.t:lIJWlJI="'-.!u..L _'" ·;"'Irjn,:. "->,, pl=I'.<,E·,·:'.' \AOAPTIVEUSE
from J.A.L. Waddell, Bridge Engineering, 2 Vols., (flewYork, 1916), 1:1027.
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NOTEFar .5IU.} Q/I?Qcls.Am :::n..J
Ch:7flr>el.s su TrJb/l!..,u.;
•OESCRt PrION (CONTlNU EDI
this common truss type which once predominated the landscape. The significance of the West Monitor Bridge as represen-tative of a common bridge type is enhanced by the fact that the original riveted steel cylinder piers supporting thetruss remain intact.
Fro. 13a. Details or Open Bracing for Sled Cylinder Pit'N.
REFERENCES (CONTINUEDl
ABSTRACT
GP 0 931 842
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West Honitor Brid~e
West ~onitor Bridge
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West rlonitor Bridge
West.Monitor Bridge
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,lest :'1onitor Bridge
WEST MONITOR BRIDGE
I~'~ t,..~ SitU ' :"P02.q~~#~1Uf I"" .s..!L-T~~fl
HAER INVENTORY Hrsten c Amerocan neerong Record 4Department of the I rlor, Washington, D.C
Lisa Soderberg IHAER/Washington State Bridge InventoryDATEI October 1979
11 DESCRIPTION AND BACKGROUND HISTORY INCLUDING CONSTRUCTION DATECS) HISTORICAL OATfeSI PHYSICAL "'MENStONSMA TERIAlS EXTANT EQUIPMENT AND IMPORT ANT BUILDERS ENGINEERS ETCIn 1907. the Puget Sound Bridge and Dredging Company constructed a two-span steel pinconnected Pratt truss overthe Wenatchee River. This 320 foot structure consists of two 140 foot steel trusses, and two 20 foot timber trestleapproach spans. Each truss is composed of seven 20 foot panels, and rests on two pairs of riveted steel cylinderp1ers which are filled with concrete, and are braced by two eyebars with turnbuckles. During the early 20th century,these riveted steel piers were a common, economical means of supporting a bridge. The standard1zation and widespreaduse of these concrete-filled cylinders is reflected in J.A.L. Waddell's book, Bridee Engineering where there is adiagram and description of piers identical to the West Monitor Bridge piers. The ridge supports a timber deck whichis 16 feet wide, curb to curb.
Of the ten exist1ng inconnected--West Monito18 ORIGINAl liSE
Bridge/vehicularPRESENT 110;£
IBridge/vehicular1'1 nFrfREUCES -ltistoAlCALREFERENCES PERSONALC'ONTACTS ANDJOnOTHEnChelan County Bridge Files.J.A.L. I~addell, Bridge Engineering, 2 Vols., (New York, 1916), 1:1027.
ICONT OVEA,
In III1I1AtIAREA5DOfJJ 111 'i~Si~lN122 PUBLIC ACCESlIIlBILIry eVES LIMITED liVES UNLIMITED 2J EDITOR''fII' nil MOllE' eVES IIrlO
eNO []UNKNOWN INDEXER
'I ,"r AIIUIliArHIIC;Im4U nrcnmr,"DISTRICT ID NO 1- I -I I I IC11;~ IlINO NAME - . . - . - .
34'7f '
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25 PHoros AND SKETCH MAPOF LOCATION
NOTCr,Jlr~.J"Iibtb An.s Inti
Clwmnrh .... ;r;~41:
I"u. 1:L, Ikinlls or Open 8m. '"I ror Blecl Cyhmll r Pit N
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I \GI•, ReD ,. \\\~
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.....~ )• I """D
from J.A.L. Waddell, Bridge Engineering, 2 Vols., (New York, 1916), 1:1027.DESCRIP1'ION CCONYINUEDIthis common truss type which once predominated the landscape. The significance of the West Monitor Bridge as represen-tative of a common bridge type is enhanced by the fact that the original riveted steel cylinder piers supporting thetruss remain intact.
AEFEAENCES(CONTINUEDI
Project ::-,-C;;-':!~.lJd\N COUN'l''l
WEpT MONITOR BRIDGE
o
DETERMINATION·OF ELIGIBILITYNAMEH-i-storic
Common WEST MONITOR BRIDGE #306Site Number _~c:!:o~u~n:,.:t:.ly~N:.::u:::;mb=e:.:r:......::3:..:0:..:6:...:;:.....:S:.:W:.:I:.:B:..:S:......:C::H::E=-·0::..:.9:..4::.:2:..0=-.0:...0:...0:..:1:..7=-0:...0=-_
LOCATION 1.2 miles north of M0nitor on the Old Monitor Rd. crossing the
DEseRIDf THE PRESENr Af'D iJRIGINAL U' KNOWN' PHYSICAL APPEARANCE
, •• , In 1907, the Puget Sound Brictg"e and Dredging Companyconstructed 'a two-spansteel pinconnected'Pratt truss over the Wenatchee River. This 320 foot structureconsists of two 140 foot steel trusses, and two 20 foot timber trestle approachspans. Each truss is ,composed of seven 20 foot panels, and rests on two pairs ofriveted steel cylinder piers which, are filled with ,concrete, and are braced bytwo eyebars with turnbuckles. During the, early 20th century, these riveted steelpiers were a common, economical means of supporting a bridge. The standardiiationand widespread use of .these concrete-filled cylinders is reflected in J.A.L Waddell'sbook, Bridge, Engineering, where there is a diagram and description of piers identicalto the West 1·10nitor Bridge piers. The bridge supports a timber deck which is 16 feetwide, curb to'curb.
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SIGNIf! CArleEPERIOD AREAS OF SIGNIFlC~NCE -- CMECK AND JUSTIFY BELOW
Of the ten existing pinconQected Pratt,truss~s (with parallel chords) builtbefore 1910 within the state, the ~Jest f,lonitor Brid.ge and the F Street Bridge inPalouse appear' to 'be the oldest, and least altered examples of this commontruss.type which once predominated .the [andscape ," The significance of the West MonitorBridge as representative of a, commonbridge type is enhanced by the fact that theoriginal riveted steel cylinder piers' supporting the truss remain intact.
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Resource: •----------------------FORM PREPARED BY
R.B.DavidsonPlanning & Proceedures EngineerState Aid OrganizationWashington State Department of TransportationHighway Administration BuildingOlympia, Washington 98504 Phone: 753-7531
STATE HISTORIC PRESERVATION OFFICER OPINIONI understand that the Washington State Department of Transpor-tation is requesting the opinion of the State Historic Preser-vation Officer concerning the eligibility of the Hest-140nit0 r Br j dge for inc 1usion in the Na:;:t""'l."::o"'n";a:'ili"'-iR;"e"'g::Tl.::-s:;:t-:::e:::r"""-;;:andiliat my submitted opinion may be submitted to the Secretary ofthe Interior with a formal request for a determination of elig-ibility on this property. This statement confirms that I havebeen consulted as part of the determination of eligibilityprocess .
.xL(1)
(2)
(3)
In my opl.nl.on,the property is eligible for inclusionin the National Register.In my opinion, the property is not eligible forinclusion in tne National Register.I have no opinion and prefer to defer to theopinion of the Secretary of the Interior.
Comments:
Signed:?anneM:Welcheputy State Historic Preservation Officer