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SANITARY SEWER NOTES & SPECIFICATIONS
1. ALL WORK MATERIALS SHALL BE IN CONFORMANCE WITH THE STANDARDS AND SPECIFICATIONS OF THE CITY OF
RENTVN AND THE LATEST EDITION OF THE WSD0T/4PWA STANDARDS AND SPECIFICATIONS.
2. THE HOURS OF WORK IN THE STREET RIGHT—OF—WAY SHALL BE LIMITED TO 8:30 A.M. TO 3:30 P.M. ON
WEEKDAYS UNLESS OTHERWISE APPROVED IN WRITING BY THE TRANSPORTATION 0|\4S0N AT (425) 277-6222-
ALL STREET CLOSURES, PARTIAL OR FULL, SHALL BE APPROVED BY THE TRANSPORTATION 0\4S0N 24 HOURS IN
ADVANCE. THE POLICE DEPARTWENT, FIRE. DEPARTMENT AND 911 SHALL BE NOTIFIED 24 HOURS IN ADVANCE
3. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH "STANDARD SPECIFICATIONS FOR MUNICIPAL PUBLIC WORKS
CONSTRUCTION" PREPARED BY VVASH|NQTON STATE CHAPTER AMER|CAN PUBLIC WORKS ASSOCIATION, LATEST
EDITION (APWA) AND CITY OF RENTON STANDARD SPECIFICATIONS.
4. 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.
5. A PRE —CONSTRUCTION CONFERENCE AND A 24—HOUR NOTICE SHALL BE REQUIRED PRIOR TO STARTING WEVV
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 RENTDN.)
IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE CITY INSPECTOR 24 HOURS IN ADVANCE OF
BACK FILLING ALL CONSTRUCTION.
6- CONTRACTOR IS SOLELY RESPONSIBLE FOR THE MEANS' METHODS AND SEQUENCES OF CONSTRUCTION AND FOR
THE SAFETY OF WORKERS AND OTHERS ON THE CONSTRUCTION SITE.
7. IT SHALL BE THE� RESPONSIBILITY OF THE CONTRACTOR TO OBTAIN STREET USE AND ANY OTHER RELATED
PERMITS PRIOR TO ANY CONSTRUCTION.
8. PLANS APPROVED BY THE CITY OF REWTOM^ DEVELOPMENT SERVICES DIVISION, SHALL TAKE PRECEDENCE OVER
ALL OTHER PLANS.
9. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS.
10. THE CONTRACTOR SHALL PROVIDE THE CITY OF RENTDN WITH AN AS —BUILT DRAWING OF THE SANITARY
SEWER SYSTEM WHICH HAS BEEN STAMPED AND SIGNED BY A LICENSED PROFESSIONAL ENGINEER OR LICENSED
PROFESSIONAL SURVEYOR.
11. BACKF|LL SHALL BE PLACED EQUALLY ON BOTH SIDES OF THE PIPE IN LAYERS WITH A LOOSE AVERAGE DEPTH
OF 8 INCHES, MAXIMUM DEPTH OF 8 INC-4kHES, THOROUGHLY TAMPING EACH LAYER TO 95 PERCENT OF MAXIMUM
DENSITY. THESE COMPACTED LAYERS MUST EXTEND FOR ONE PIPE DIAMETER ON EACH SIDE OF THE PIPE OR TO
THE SIDE OF THE TRENCH. MATERIALS TO COMPLETE THE FILL OVER PIPE SHALL BE THE SAME AS DESCRIBED.
12. OPEN CUT ROAD CROSSINGS FOR UTILITY TRENCHES ON EXISTING TRAVELED ROADWAY SHALL BE BACK FILLED
WITH CRUSHED ROCK AND MECHANICALLY COMPACTED. CUTS INTO THE EXISTING ASPHALT SHALL BE NEATL|WE
CUT WITH SAW /N A CONTINUOUS LINE. A TEMPORARY MIX PATCH MUST BE PLACED IMMEDIATELY AFTER
BACKF|LL AND COMPACTION. A PERMANENT HOT MIX PATCH SHALL BE PLACED WITHIN 10 DAYS AND SHALL BE
PER CITY OF RENTDN CURRENT STANDARDS.
13. DATUM SHALL BE CITY OF RENTON. U.S.C. AND G.S.
14. ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED OR OTHERWISE STABILIZED TO THE SATISFACTION OF
THE DEPARTMENT FOR THE PREVENTION OF ON —SITE EROSION AFTER THE COMPLETION OF CONSTRUCT}ON,
15. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE NTH
SECTION 7-02'3(1) OF THE CURRENT STATE OF VVASH|NGTON STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE
CONSTRUCTION. THIS SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH BOTTOM OR THE TOP OF THE
FOUNDATION MATERIAL AS WELL AS PLACEMENT AND COMPACTION OF REQUIRED BEDDING MATERIAL TO UNIFORM
GRADE SD THAT THE ENTIRE LENGTH OF THE PIPE WILL BE SUPPORTED ON A UNIFORMLY DENSE UNYIELDING
BASE. PIPE BEDDING SHALL BE PEA GRAVEL 8 INCHES ABOVE AND BELOW THE P|pE,
16. SANITARY SEWER PIPE SHALL BE POLY -VINYL CHLORIDE (PVC) RUBBER—CA3KETED ASTW D 3034' SDR 35, OR
DUCTILE IRON CLASS 50.
17. IN UNIMPROVED AREAS' MANHOLE TO EXTEND A MINIMUM OF 8 INCHES AND A MAXIMUM OF 18 INCHES ABOVE
FINISHED GRADE. IN PAVED AREA, COVER MUST SLOPE IN ALL DIRECTIONS TO MATCH PAVING.
(�����x��T/� SCALE
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( IN FEET )
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CONCEPT ENGINEERING. INC._
455 Rainier Boulevard North
Issaquah, Washington 98027
Copyright c 1999 Concept Engineering, Inc. All rights reserved.
/
SSWH #1 — RIM 209.35
EXISTING 'WAIN |E-205.56.
STRADDLE EXISTING SS MAIN
COR STD. DETAIL B072
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ALL WORK SHALL COMPLY WITH CITY OF RENTDM
STANDARD PLANS FOR ROAC, BRIDGE AND MUNICIPAL
COWSTRUCODN, LATEST EDITION.
CITY OF RENTOhj
APPROVAL FOR ---SITE CONSTRUCTION
Date
Date
mm
OCT 2 8 7OU~
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