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PLAN OF BASE UNIT 24" x 24" HINGED COVER - H-20 LOAD 1/8 x DOOR FLOOR PLATE INS
FLOOR PLATE
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WITH RCP LOCK NSP. COVER
INSPECTION SAMPLING LIFT HOLE PLUG AFTER INST.
TEE 8" MIN. (REF.)
3/8" x 2' x 2' FLOOR PLATE
HINGED RCP LOCK
INSPECTION �3/8" x 12" x 12' DROP
COVERS / i IN FLOOR PLATE
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24"1T 12"
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PLAN OF BASE UNIT 24" x 24" HINGED COVER - H-20 LOAD 1/8 x DOOR FLOOR PLATE INS
FLOOR PLATE
I
WITH RCP LOCK NSP. COVER
INSPECTION SAMPLING LIFT HOLE PLUG AFTER INST.
TEE 8" MIN. (REF.)
3/8" x 2' x 2' FLOOR PLATE
HINGED RCP LOCK
INSPECTION �3/8" x 12" x 12' DROP
COVERS / i IN FLOOR PLATE
T� '' �6" F
24"1T 12"
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6"
23"'
21"
12"
16"
FLOW
4" x 4" x 6/6 GROUT 6 SEAL
72
DISTRIBUTION W.W.F.
OIL RETAINER GRIT/SLUDGE RETAINER
BAFFLE
SECTION B-B
BAFFLE
4 x 4-6-11'2 W.W.P. SECTION A -A
BASE UNIT 5053 LBS.
COVER 1450 LBS.
GENERAL NOTES:
CONCRETE:
MINIMUM 28 DAY COMPRESSIVE STRENGTH = F'C 4000 PSI.
DESIGN LOADS:
DESIGN IN ACCORDANCE WITH NO. 52563 "MINIMl1M"
AASHO
REQUIREMENTS FOR THIN SECTION PRECAST CONCRETE
- H-20
CONSTRUCTION.
GALVANIZING:
REINFORCEMENT:
ALL FABRICATED STEEL ITEMS, EXCEPT
DEFORMED BARS IN ACCORDANCE WITH ASTM
REINFORCING, TO BE HOT DIPPED GALVANIZED
A615 65 GRADE 40, WELDED WIRE FABRIC IN
AFTER FABRICATION, CONFORMING TO
ACCORDANCE WITH ASTM A82-66 6 A155-69,
SPECIFICATIONS ASTM A384, A335, A386, d A123.
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NOTES AND SPECIFICATIONS FOR STORM DRAINS
1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH "STANDARD
SPECIFICATIONS FOR MUNICIPAL PUBLIC WORKS CONSTRUCTION" PREPARED BY
WASHINGTON STATE CHAPTER AMERICAN PUBLIC WORKS ASSOCIATION, 1988 EDITION
(APWA) AND CITY OF RENTON STANDARD SPECIFICATIONS.
2. CONTRACTOR SHALL PROVIDE AND MAINTAIN TEMPORARY SEDIMENTATION/COLLECTION
FACILITIES TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER NATURAL
DRAINAGE SYSTEM. THESE FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING
AND CONSTRUCTION AND MUST BE MAINTAINED UNTIL CONSTRUCTION AND
LANDSCAPING ARE COMPLETED AND THE POTENTIAL FOR ON -SITE EROSION HAS
PASSED.
3. ALL LOCATIONS OF EXISTING UTILITIES SHOWN ARE APPROXIMATE AND IT SHALL
BE THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THE TRUE AND CORRECT
LOCATION SO AS TO AVOID DAMAGE OR DISTURBANCE.
4. A PRECONSTRUCTION CONFERENCE AND A 24 HOUR NOTICE SHALL BE REQUIRED PRIOR
TO STARTING NEW CONSTRUCTION. IT SHALL BE THE CONTRACTOR'S
RESPONSIBILITY TO SECURE ALL NECESSARY PERMITS PRIOR TO STARTING
CONSTRUCTION. (INSPECTION WILL BE ACCOMPLISHED BY A REPRESENTATIVE OF THE
CITY OF RENTON). IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY
THE UTILITY DEPARTMENT 24 HOURS IN ADVANCE OF BACKFILLING ALL
CONSTRUCTION.
5. STORM DRAIN PIPE SHALL BE CONCRETE, RUBBER GASKETED ASTM C14, CL.2 OR
ASTM C-76-II OR PVC, SDR 21 CONFORMING TO ASTM D-3034.
6. BEDDING AND BACKFILL FOR STORM DRAIN PIPE SHALL BE PER APWA STANDARD PLAN
B-11 (CONCRETE) OR (PVC). SUBMIT
MANUFACTURERS SPECIFICATIONS FOR MINIMUM COVER OJ PV,_ Pj -Iec_
7. TRENCH WIDTH IN BEDDING ZONE SHALL BE 1-1/2 TIMES THE PIPE DIAMETER PLUS
18 INCHES.
8. TYPE 1-C CATCH BASINS SHALL BE PER APWA STANDARD PLAN B-1, WITH APWA
STANDARD PLAN B-2a FRAME AND GRATE. TYPE II CATCH BASINS SHALL BE PER
APWA STANDARD PLAN B-16, WITH APWA STANDARD PLAN B-2a FRAME AND GRATE.
9. CONTRACTOR IS SOLELY RESPONSIBLE FOR THE MEANS, METHODS AND SEQUENCES OF
CONSTRUCTION AND FOR THE SAFETY OF WORKERS AND OTHERS ON THE CONSTRUCTION
SITE.
10. ALL ROOF DOWNSPOUTS SHALL BE TIGHTLINED TO THE STORM DRAIN SYSTEM.
11. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN STREET USE AND
ANY OTHER RELATED PERMITS PRIOR TO ANY CONSTRUCTION.
12. PLANS APPROVED BY THE DIRECTOR OF PUBLIC WORKS SHALL TAKE PRECEDENCE
OVER ALL OTHER PLANS.
13. THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE
APPROVED PLANS WHICH ARE ON FILE AT THE CITY OF RENTON DEPARTMENT OF
PUBLIC WORKS. ANY DEVIATION FROM THE APPROVED PLANS WILL REQUIRE WRITTEN
APPROVAL FROM THE CITY OF RENTON DEPARTMENT OF PUBLIC WORKS.
14. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER
CONSTRUCTION IS IN PROGRESS.
15. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0.10 FEET BELOW PAVEMENT LEVEL
16. THE CONTRACTOR SHALL PROVIDE THE CITY OF RENTON WITH AN AS -BUILT DRAWING
OF THE STORM DRAINAGE SYSTEM, THE SANITARY SEWER SYSTEM, THE WATER SYSTEM
AND THE SITE GRADING WHICH HAS BEEN STAMPED AND SIGNED BY A LICENSED
PROFESSIONAL ENGINEER.
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DATE
1" =20'
5- 5 -88
JOB NO
8172 3
3.03
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