ELEVATION VIEW - eng2.lacity.org · city of los angeles standard plan supersedesreferences sheet 1 of 6 sheets street intercept: stormwater aggregate filters-495-1 gary lee moore,

SIDEWALK PER S-444PER S-410 AND/ORINTERCEPT S-495(WIDTH VARIES)

STREET CONVEYANCE SYSTEM OFFLINE CONVEYANCE SYSTEM

GUTTER CURB PARKWAY (OR MEDIAN)STREET

PLAN VIEW

ELEVATION VIEW

FLOW

6"

1'-7" - 2'-0"

1'-6"

2'-0"

2'-1 1/4"

2'-0"

1'-2" 1'-6"

5'-0" MIN.

6"

PL

PARTIAL PLAN "B" ON SHEET 5

NOT TO SCALE

NOT TO SCALE

6" 2'-1 1/2" 8 1/2" 1'-6"

FLOW

1'-0"

6"

3'-4" 2'-0" MIN. 5'-0" MIN.

1 7/8"1'-0"

7 3/4"

6" MIN.

6 1/2"

FLOW

4'-0"

6"

MIN. 1'-6"CONVENIENCE

STRIP

1'-2"

1/2"

1/2"

FLOW

FLOW

FLOW

FLOW

4 3/4"6 1/2" 6 1/2"

2'-8 9/16"

2'-1 1/2"3"

2 1/2"

3'-4"3'-5 3/8"

6 1/4"

4 3/4"

3"

1 3/4"

1 1/2"

1 7/8" 2 3/4"

2" TYP.

(VARIES TO MATCHSTREET SLOPE)

1'-0"

CURB FACEBATTER 1 1/2 :12

DEPARTMENT OF PUBLIC WORKS CITY OF LOS ANGELES

STANDARD PLAN

SUPERSEDES REFERENCES

SHEET 1 OF 6 SHEETS

STREET INTERCEPT: STORMWATER AGGREGATE FILTER S-495-1

GARY LEE MOORE, P.E.

DATE

CITY ENGINEER

EDWARD ARRINGTON, S.E.

KENNETH R. REDD, P.E.

APPROVEDSUBMITTED

DATE

S-323

CHECKED

PREPARED

DATEPATRICK LEE, P.E.

BUREAU OF ENGINEERING

ENGINEER OF DESIGN

DEPUTY CITY ENGINEER

ASST. DIRECTOR


S-470S-342 S-480S-351 S-481S-354 S-482S-355 S-483S-410 S-484S-430 S-487S-444 S-488


LA SANITATION & ENVIRONMENTSHAHRAM KHARAGHANI, PhD, P.E.

DEBORAH DEETS, RLA, FASLA

TOMAS SIPAILA

DESIGNERS

VAULT INDEX NUMBER:

B-4787

4" WIDE x 8" DEEPCONCRETE EDGER, TYP.

PARTIAL PLAN "A" ON SHEET 2

Electronically Signed by Edward Arrington, S.E. on 06/17/2020


OFFICIAL RECORD

B-4790Electronically Signed by Ken Redd on 06/25/2020 3:33:32 PM

06/25/2020

REGI

STER

ED PROFESSIONAL ENGINEER

STATE OF CALIFORNIAC I V I L

GARY LEE MOORE

No. C-49446

06/25/2020Electronically signed by 21866 on 06/25/2020 at 9:12:44 PM

PARTIAL PLAN A

1

2

MODIFIED TOP OPENING CATCH BASIN, SEE DETAIL"B" SHEET 4; NOTES 3, 8, 11 AND 12, SHEET 6.

2" Ø WATER TIGHT RUBBER GASKET, TYP.

3 CONVEYANCE CHAMBER, SEE NOTE 2, SHEET 6.

9

EXISTING UTILITY, SEE NOTE 14, SHEET 6.

12

4

13

6 45 MIL IMPERMEABLE EPDM LINER & WATERBARRIER.

10 PRIMARY CONNECTOR PIPE, SEE NOTE 12,SHEET 6.

7 EPDM LINER PENETRATION WITH WATER PROOFCONDUIT FLASHING, TYP. SEE DETAIL "A" SHEET 4.

14

5

8

STREET WIDTH VARIES PER S-470. SEETABLE THIS SHEET.

LEGEND

CATCH BASIN BACKFILLED W/ APPROVED FILTERGRAVEL. SEE NOTE 4, SHEET 6.

TIED BUTT LONGITUDINAL CONSTRUCTION JOINTPER S-430, MODIFIED TO 12" (6+6).

SLOPED COLLAR ON CATCH BASIN WITH 12" RECESSDROP FROM EDGE OF PAVEMENT TO TOP OF GRATE.

CB GRATE COVER. SEE DETAIL "B" SHEET 4 & NOTE5, SHEET 6.12

15

13

14

15

STEEL ANGLE FRAME. SEE DETAIL "B" SHEET 4 &NOTE 6, SHEET 6.

TYPE "C" INTEGRAL CURB AND GUTTER PER S-410

FLOW

11 SECONDARY CONNECTOR PIPE, SEE NOTE 12,SHEET 6.

16 REPAIR AND RECONSTRUCT STREETDAMAGE RESTORATION AREA (SDRA),SEE NOTE 15, SHEET 6.

NOT TO SCALE

FLOW

7

9

11

8

6

STREET INTERCEPT (SI) MINIMUM SPACING TABLE-MAXIMUM SPACING IS ENTIRE EDGE OF PAVEMENT-

S-470 STREET CLASSWIDTH CL TO GUTTERMIN. SI SPACING

BOULEVARD I 50' 77'

BOULEVARD II 40' 96'

AVENUE I 35' 110'

AVENUE II 28' 138'

AVENUE III 23' 168'

COLLECTOR STREET 20' 193'

INDUSTRIAL COL. ST. 24' 161'

INDUSTRIAL LOC. ST. 22' 175'

LOCAL STREET - STD 18' 215'

LOCAL STREET - LIM 15' 258'

10

16

1

16

17

17 JOINT PER S-430, SEE NOTE 9, SHEET 6.

18 WATER TIGHT GASKET THROUGH CURB, TYP.SEE NOTE 12, SHEET 6.

18

19

19 4" Ø END CAP, SOLVENT WELD, TYP.5

4

3

2

SHEET 2 OF 6 SHEETSSTANDARD PLAN NO. VAULT INDEX NUMBERS-495-1

3A

3B

PARKWAY/MEDIANSURFACE NOT SHOWNFOR CLARITY.



OFFICIAL RECORD

B-4790

SECTION A

1

2

3 CONVEYANCE CHAMBER, SEE NOTE 2, SHEET 6.

4

16

PARKWAY / MEDIAN SURFACE, SEE NOTE 16, SHEET 6.

5

6 45 MIL IMPERMEABLE EPDM LINER &WATER BARRIER.

9

7 LINER PENETRATION WITH WATER PROOFCONDUIT FLASHING, SEE DETAIL "A" SHEET 4.

15

17

APPROVED FILTER GRAVEL, SEE NOTE 4, SHEET 6.

LEGENDMODIFIED TOP OPENING CATCH BASIN, SEE DETAIL"B" SHEET 4 & NOTES 3, 8, 11 AND 12, SHEET 6.

1

1

STAINLESS STEEL MESH SCREEN PACK FILTERS.SEE DETAIL "B" SHEET 4 & NOTE 7, SHEET 6.

2

2

16

CB GRATE COVER. SEE DETAIL "B" SHEET 4 & NOTE5 SHEET 6.

413

STEEL ANGLE FRAME, SEE DETAIL "B" SHEET 4 &NOTE 6, SHEET 6.

4 13

12

8 EXISTING UTILITY, SEE NOTE 14, SHEET 6.

SUBGRADE COMPACTED TO 95% PROCTOR DENSITY.

10 4" CONNECTOR PIPE, SEE NOTE 12, SHEET 6.

11

12

13

STREET WIDTH VARIES PER S-470

TIED BUTT LONGITUDINAL CONSTRUCTION JOINTPER S-430, MODIFIED TO 12" (6+6), TYP.

SLOPED COLLAR ON CATCH BASIN WITH 12" RECESSDROP FROM EDGE OF PAVEMENT TO TOP OF GRATE.

14 TYPE "C" INTEGRAL CURB AND GUTTER PER S-410,MAX SLOPE 5% PER S-480.

2" Ø WATER TIGHT RUBBER GASKET, TYP.

5

679 10

9

1114

15

1516

1714

FLOW

FLOW

FLOW

REPAIR AND RECONSTRUCT STREET DAMAGERESTORATION AREA (SDRA), SEE NOTE 15, SHEET 6.

18

LEVEL BASIN FLOOR, SEE NOTE 11, SHEET 6.19

18

19

NOT TO SCALE

3

19

11

8

3

5

20

JOINT PER S-430, SEE NOTE 9, SHEET 6.20

2010

WATER TIGHT GASKET THROUGH CURB, TYP. SEENOTE 12, SHEET 6.

21

21

21

22 4" Ø END CAP, SOLVENT WELD, TYP.

22


2A

SECTION BNOT TO SCALE2

BBUREAU OF ENGINEERING

OFFICIAL RECORD

B-4790

1. CLEAN SURFACES AND REMOVE ALL EXISTING OIL, DEBRIS,ETC. LINER AND PIPE SURFACE MUST BE FREE OF ALLRUST, GREASE, INSULATION, ETC.

2. PIPE MUST BE ANCHORED TO ENSURE STABILITY FOR SEAL.3. PRE-MOLDED PIPE FLASHING CUT TO MATCH PIPE Ø.4. PIPE FLASHING FITS 1"(25 mm) -6" (152 mm).5. DO NOT USE WHEN SERVICE LINE TEMP. EXCEEDS 180°F.6. FOLLOW MANUFACTURER'S INSTRUCTIONS FOR LVOC

ADHESIVE APPLICATION TO EPDM LINER.

3"

CURBCURB PIPE

DETAIL A

DETAIL B

1

2

3

13

1

2

STAINLESS STEEL PIPE CLAMP.

PRE-MOLDED PIPE FLASHING FOR EPDM

3 LVOC ADHESIVE APPROVED UNDERSCAQMD RULE 1168, TYP.

4 45 MIL IMPERMEABLE EPDM LINER, TYP.4

1

2

3

4

5

6

7

CB GRATE COVER, SEE NOTE 5, SHEET 6.

RECESSED VANDAL RESISTANT LOCKING MECHANISM,TYP.STEEL ANGLE FRAME PER S-342, SEE NOTE 6 SHEET 6.

STAINLESS STEEL COURSE #3 (TOP), SEE NOTE 7,SHEET 6.STAINLESS STEEL FINE #16 MESH (BOTTOM), SEENOTE 7, SHEET 6.FILTER GRAVEL AGGREGATE DIRECTLY UNDER SSSCREEN PACK, SEE NOTE 4, SHEET 6.

4 5 6

2

LEGEND A

LEGEND B

8

OPTIONAL PERMEABLE INTERLOCKING CONCRETEPAVERS (PICP), RUNNING BOND PATTERN. SEE NOTE5, SHEET 6.

12

CURB PER S-410

FLOW

NOT TO SCALE

MESH SCREEN PACK - NOT TO SCALE

DETAIL A NOTES

55

COLLAPSE AIR POCKET WITHIN PRE-MOLDEDPIPE FLASHING AND SECURE STAINLESSSTEEL CLAMPING RING IN CLOSE PROXIMITYTO POINT OF EPDM LINER PENETRATION.

9 SLOPED COLLAR ON CATCH BASIN WITH 12" RECESSDROP FROM EDGE OF PAVEMENT TO TOP OF GRATE.

7

10 CB COLLAR OUTER RIM FOLLOWS GRADE OF GUTTER.

10

(ENLARGEMENT) RECESSED VANDALRESISTANT LOCKING MECHANISM, TYP.

RECESS LOCKINGMECHANISM

11 JOINT PER S-430, SEE NOTE 9, SHEET 6.

11 9

6 6" BLACK RUBBER POLYMER SEAM TAPE FOR EPDM

6" SEAM TAPE

6" OVERLAP

3 46

12 TIED BUTT LONGITUDINAL CONSTRUCTION JOINTPER S-430, MODIFIED TO 12" (6+6)

8

EPDM LINER PENETRATION

EPDM LINER SPLICING

1/8"

2

7 7 FLEXIBLE SEALED JOINT THROUGH CURB, TYP.



OFFICIAL RECORD

B-4790

PARTIAL PLAN B

1

2

4

5

3

6

10 45 MIL IMPERMEABLE EPDM LINER & WATER BARRIER.


8


LEGEND

13 EXISTING UTILITY UNDER EPDM LINER, SEE NOTE 14,SHEET 6.

7 PRIMARY CONNECTOR PIPE, SEE NOTES 3 AND 12,SHEET 6.

14

15

9

16

TYPE "C" INTEGRAL CURB AND GUTTER PER S-410

4" Ø WATER TIGHT RUBBER GASKET, SEE NOTE 13,SHEET 6.

6" Ø SDR-35 PVC END CAP, SOLVENT WELD.SEE NOTE THIS SHEET.

DISTRIBUTION PIPE, SEE NOTE 12, SHEET 6.

6" OVERFLOW OUTLET WITH VECTOR SCREEN @ MIN.0.01% SLOPE TO DOWNSTREAM CONNECTION, PASSIVEIRRIGATION, INFILTRATION, BYPASS, STORAGE OREXISTING STORMWATER INFRASTRUCTURE. SEE NOTETHIS SHEET.

CAST IRON LOCKING COVER EMBOSSED WITH "OV"FOR OBSERVATION VAULT.

6" Ø WATER TIGHT RUBBER PRESSURE GASKET,SEE NOTE 13, SHEET 6.

(2) 2X4 RECYCLED PLASTIC SUPPORTBOARDS, 18" LONG. 3 4" NOTCH HALFWAY, TYP.

12 PROTECTION LAYER OVER IMPERMEABLE EPDM LINERAT OBSERVATION VAULT. SEE NOTE 13, SHEET 6.

SECONDARY CONNECTOR PIPE, SEE NOTES 3 AND 12,SHEET 6.

6

2

3

5

8

7

10

11

12

14

15

FLOW

NOT TO SCALE

PRECAST 12" Ø CONCRETE VAULT.

9

4

1

16

13

FLOW

FLOW

NOTE:

OVERFLOW DRAIN CONNECTION PER S-480 GENERAL REQUIREMENT 5B AT EXISTING STORMDRAIN, ORTO S-323, S-351, S-354, S-355; GREEN STREETS STANDARDS S-481, S-482, S-483, S-484, S-487, S-488;INFILTRATION DRY WELL; DOWNSTREAM STORAGE OR APPROVED DOWNSTREAM APPLICATIONSSHALL BE DETERMINED BY ENGINEER OF RECORD.

9


6C


PARKWAY/MEDIANSURFACE NOT SHOWNFOR CLARITY.


OFFICIAL RECORD

B-4790

NOTES:

1. ALL WORK SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE LATEST STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION ADOPTED BY THE BOARD OF PUBLIC WORKS AS MODIFIED BY THE CORRESPONDING ISSUE OF THE CITY OF LOS ANGELES DEPARTMENT OF PUBLIC WORKS BROWN BOOK AND PER LOS ANGELES GREEN STREET STD S-480. ONE REVOCABLE PERMIT REQUIRED PER INTERCEPT SYSTEM WITH SIGN OFF BY ALL IMPACTED PROPERTY OWNERS.

2. CONVEYANCE CHAMBER: SHALL MEET ASTM F2418 AND TO PREVENT CLOGGING SHALL HAVE MINIMUM 10 SQUARE INCHES OFFSET INTERFACE SIDE HOLES PER LINEAR FOOT OF CONVEYANCE OR APPROVED EQUAL. CONNECTOR PIPES SHALL BE A MINIMUM 2" Ø SCH 40 PVC, ABS, HDPE OR APPROVED EQUAL.

3. STREET INTERCEPT AGGREGATE FILTERS: PER PROJECT DESIGN PLANS AND TRIBUTARY AREAS, LOCATED UPSTREAM TO SUPPLEMENT ANY EXISTING OR NEW CATCH BASIN INLET. TOTAL CONVEYANCE FOR (6) 2" CONNECTOR PIPES UNDER 1' GRAVITY HEAD PRESSURE CONVEYS 0.318 CFS. OFFLINE SYSTEM TO FOLLOW CITY OF LOS ANGELES STORMWATER LID REGULATIONS. A GEOTECHNICAL REPORT, AND PROJECT LANDSCAPE ARCHITECT OR ENGINEER SIGNOFF, IS REQUIRED.

4. GRAVEL: WASHED FILTER GRAVEL AGGREGATE, ASTM C33 #89, 14" - 18" PARTICLE SIZE. TEST RESULTS PROVIDED PRIOR TO INSTALLATION INCLUDING BUT NOT LIMITED TO PERCOLATION RATE OF 1" < 5 SECONDS WHICH SHALL BE MAINTAINED. INSTALL CONVEYANCE CHAMBERS BEFORE BACKFILLING TO PREVENT GRAVEL UNDERNEATH. VIBRA-PLATE COMPACT GRAVEL TO 90% PROCTOR DENSITY. INSPECTOR SIGN OFF REQUIRED.

5. CB GRATE COVER: SHALL BE H-20 TRAFFIC RATED, BICYCLE PROOF, CONFORM TO ADA STANDARDS PER S-480 SECTION 1. GRATE MOUNTING PARTS AND TECHNIQUES SIMILAR TO S-342 "FRAME AND GRATING FOR CATCH BASINS (BICYCLE SAFE)". CITY ENGINEER APPROVED POROUS SURFACE OR PERMEABLE INTERLOCKING CONCRETE PAVER (PICP) MAY REPLACE CB GRATE IN GUTTER "EDGE OF PAVEMENT" INTERCEPT APPLICATIONS. OMIT FRAME AND ADJUST CB OPENING WIDTH TO ACCOMMODATE WHOLE PAVERS, RUNNING BOND PATTERN, SEE S-480 SECTION 5-E.

6. FRAME: INSTALL FRAME AND GRATING IN THE PLANE OF THE GUTTER, CB RIM FOLLOWS GRADE OF GUTTER. STEEL ANGLE FRAME ANCHORED TO SLOPED CONCRETE COLLAR WITH MINIMUM DROP OF 12" FROM EDGE OF PAVEMENT TO TOP OF CB GRATE. MAXIMUM STREET SLOPE TO INSTALL SI FILTER IS 5% PER S-480 SECTION 4A. FRAME MOUNTING PARTS AND TECHNIQUES SIMILAR TO S-342 "FRAME AND GRATING FOR CATCH BASINS (BICYCLE SAFE)".

7. STAINLESS STEEL SCREEN PACK: SECURED BETWEEN FRAME AND GRATE AND SHALL CONSIST OF TWO LAYERS OF INTERCRIMP: (TOP LAYER) COURSE #3 0.03" WIRE SIZE, 0.3" OPENING WIDTH AND (BOTTOM LAYER) FINE #16 MESH 0.016" WIRE SIZE, 0.047" OPENING WIDTH. CUT SINGLE PIECE(S) WIRE CLOTH TO FIT CB OPENING FRAME. SCREEN PACK SHALL BE MAINTAINED AND CLEAR OF SURFACE SEDIMENTS PER S-480 SECTION 8-A.

8. CONCRETE: SHALL BE THE CLASS SPECIFIED IN SECTION 201 OF THE STANDARD SPECIFICATIONS. SURFACE OF ALL EXPOSED CONCRETE SHALL CONFORM IN SLOPE, GRADE, COLOR, FINISH, AND SCORING TO EXISTING OR PROPOSED PAVING AND FINISHED SURFACES ADJACENT TO THE BASIN.

9. SAWCUT AND REMOVE INTERFERING PORTIONS OF EXISTING CURB AND GUTTER, OR CONCRETE STREET PAVING, TO REPLACE WITH EXPANSION JOINT OR TIED BUTT LONGITUDINAL CONSTRUCTION JOINT PER S-430. BRIDGE DESIGN APPLICATIONS SHALL FOLLOW AASHTO LRFD SPECIFICATIONS PER S-601-3.

10. BYPASS FOR UTILITIES OR OTHER CONFLICTS: SOLVENT WELD AND SLEEVE (2x Ø INTERNAL PIPE) ALL SYSTEM BYPASS CONNECTIONS OUTSIDE EPDM WATER BARRIER TO MAINTAIN IMPERVIOUSNESS. INSTALL CONNECTION PIPE UNDERNEATH TO AVOID OBSTRUCTIONS OR ANY INTERFERENCE WITH HOUSE WALKS, DRIVEWAYS, ALLEYS, OR STREETS. SLEEVE EXTENDS 3 FEET BEYOND EDGE OF PAVING. DOWNSTREAM BYPASS INVERT ELEVATIONS SHALL CONNECT AT EQUALOR LESS ELEVATION OF THE UPSTREAM INVERT.

11. CATCH BASIN FLOOR: SHALL HAVE A LONGITUDINAL AND LATERAL LEVEL PLANE OF +/- 14" TOLERANCE AND BE GIVEN A STEEL TROWEL FINISH.

12. PIPING: PRIMARY AND SECONDARY 4" Ø CONNECTOR PIPES SHALL HAVE A GASKET THROUGH CURB WITH WATER TIGHT SEAL AND EMBEDDED IN CONCRETE POUROF CB AT MINIMUM INVERT DROP OF 12" DIFFERENCE FROM 1 7/8" ABOVE CB FLOOR TO 1 7/8" ABOVE PARKWAY / MEDIAN SUB-GRADE. PIPE PENETRATION DEPTH INTO DISTRIBUTION PIPE, CONVEYANCE CHAMBER OR CONCRETE VAULT MINIMUM 2". NON-PRESSURIZED CONNECTOR PIPES SHALL BE SCH 40 PVC, ABS, HDPE OR APPROVED EQUAL. 6" DISTRIBUTION PIPE AND FITTINGS SHALL BE SDR-35 OR APPROVED EQUAL. SEE PROJECT PLANS FOR PIPE LAYOUT AND CONNECTIONS.

13. OBSERVATION VAULT INSTALLATION: SEAL ALL PIPE CONNECTIONS WITH WATER TIGHT RUBBER GASKETS FOR WATER CONSERVATION. PROTECT IMPERMEABLEEPDM LINER UNDER OBSERVATION VAULT WITH MINIMUM 18" X 18" ADDITIONAL IMPERMEABLE EPDM PIECE, OR EQUAL, PLACED OVER IMPERMEABLE EPDM LINER DURING VAULT INSTALLATION. INSPECTOR SIGN OFF REQUIRED.

14. EXISTING UTILITIES: SHALL BE ISOLATED FROM INTERCEPT BY IMPERMEABLE EPDM WATER BARRIER.

15. STREET DAMAGE RESTORATION AREA (SDRA): REMOVE AND REPLACE APPROPRIATE STREET BASE LAYERS AND SURFACE LAYERS TO MATCH EXISTING AND/OR NEW SURFACES AFTER CONSTRUCTION.

16. PARKWAY / MEDIAN SURFACES: INSTALL LEVEL AND FLUSH FOLLOWING SLOPE OF SIDEWALK W/ < 1/8" VERTICAL TOLERANCE. IF ON-STREET PARKING IS ALLOWED,INSTALL 1'-6" WIDE (3'-0" WIDE IF PARKING METER IS REQUIRED) CONVENIENCE STRIP PER BUREAU OF STREET SERVICES RESIDENTIAL PARKWAY LANDSCAPING GUIDELINES. ACCEPTABLE PAVING MATERIALS W/ EDGE RESTRAINTS WHERE APPLICABLE INCLUDE: POROUS SURFACES, PERMEABLE INTERLOCKING CONCRETEPAVERS (PICP), CONCRETE, MULCH & VEGETATION PER S-480, S-484 "VSCE" AND/OR S-444 "SIDEWALK". MATERIAL LOCATIONS PER PROJECT PLANS.

17. INTERCEPT SHALL NOT INTERFERE WITH ANY UTILITY, BUS SHELTER, FIRE HYDRANT, FOUNDATION OR THE PATH OF ANY ALLEY, DRIVEWAY, OR HOUSE WALK.

SIDEWALK SEE S-444

1

2

4

5

3

6 45 MIL IMPERMEABLE EPDM LINER & WATER BARRIER.



LEGEND

9 EXISTING UTILITY, SEE NOTE 14, SHEET 6.

4" CONNECTOR PIPE, SEE NOTES 3,12 & 13, SHEET 6.

11

12

13BASE MATERIAL SEPARATED BY GEOFABRIC, TYP.

DISTRIBUTION PIPE CONNECTION, SEE NOTES 12AND 13, SHEET 6.

CAST IRON LOCKING COVER EMBOSSED WITH "OV"FOR OBSERVATION VAULT.RECYCLED PLASTIC SUPPORT BLOCKS, TYP.

8 PROTECTION LAYER OVER EPDM LINER. SEE NOTE13, SHEET 6.

10 PARKWAY / MEDIAN SURFACE, SEE NOTE 16, SHEET 6.

2

31457 11

12 13FLOW PRECAST 12" Ø CONCRETE OBSERVATION VAULT.

1

869

FLOW

4

4" Ø WATER TIGHT RUBBER GASKET, SEE NOTE 13.14

10


SECTION CNOT TO SCALE5

C


OFFICIAL RECORD

B-4790

ELEVATION VIEW - eng2.lacity.org · city of los angeles standard plan supersedesreferences sheet 1 of 6 sheets street intercept: stormwater aggregate filters-495-1 gary lee moore,

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