HomeMy WebLinkAboutS-283201SANITARY SEWER UTILITY - GENERAL NOTES
1. ALL WORK MATERIALS SHALL BE IN CONFORMANCE WITH THE
STANDARDS AND SPECIFICATIONS OF THE CITY OF RENTON AND THE
LATEST EDITION OF WSIiOT /APWA 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 DIVISION AT 277-
6222. ALL STREET CLOSURES, PARTIAL OR FULL, SHALL BE APPROVED
BY THE TRANSPORTATION DIVISION 24 HOURS IN ADVANCE. THE
POLICE DEPARTMENT, 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 WASHINGTON STATE CHAPTER AMERICAN 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 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 CITY
INSPECTOR 24 HOURS IN ADVANCE OF BACKFILLING 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 RENTON, 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 RENTON WITH AN AS-
BUILT DRAWING OF THE SANITARY SEWER SYSTEM WHICH HAS BEEN
STAMPED AND SIGNED BY A LICENSED PROFESSIONAL ENGINEER OR
A LICENSED PROFESSIONAL SURVEYOR.
11. BACKFILL SHALL BE PLACED EQUALLY ON BOTH SIDES OF THE PIPE IN
LAYERS WITH A LOOSE AVERAGE DEPTH OF 6 INCHES; MAXIMUM
DEPTH OF 8 INCHES, THOROUGHLY TAMPING EACH LAYER TO 95% 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 BACKFILL OF THE PIPE
SHALL BE THE SAME AS DESCRIBED.
12. OPEN CUT ROAD CROSSINGS FOR UTILITY TRENCHES ON EXISTING
TRAVELED ROADWAY SHALL BE BACKFILLED WITH CRUSHED ROCK
AND MECHANICALLY COMPACTED. CUTS INTO THE EXISTING ASPHALT
SHALL BE NEATLINE CUT WITH A SAW IN A CONTINUOUS LINE. A
TEMPORARY MIX PATCH MUST BE PLACED IMMEDIATELY AFTER
BACKFILL AND COMPACTION. A PERMANENT HOT MIX PATCH SHALL BE
PLACED WITHIN 10 DAYS AND SHALL BE PER CITY OF RENTON
CURRENTSTANDARDS.
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 CONSTRUCTION.
15. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY
PREPARED FOUNDATION IN ACCORDANCE WITH SECTION 7- 02.3(1) OF
THE CURRENT STATE OF WASHINGTON 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 SO THAT THE
ENTIRE LENGTH OF THE PIPE WILL BE SUPPORTED ON A UNIFORMLY
DENSE UNYIELDING BASE. PIPE BEDDING SHALL BE PEA GRAVEL 6"
ABOVE AND BELOW THE PIPE.
1 16. SANITARY, SEWER PIPE SHALL BE POLYVINYL CHLORIDE (PVC) RUBBER
GASKETED ASTM D 3034, SDR 35, OR DUCTILE IRON CLASS 50.
17. IN UNIMPROVED AREAS, MANHOLE TO EXTEND MINIMUM 6 INCH AND
MAXIMUM 18 INCH ABOVE FINISHED GRADE. IN PAVED AREA, COVER
MUST SLOPE IN ALL DIRECTIONS TO MATCH PAVING.
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