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Home My WebLink AboutWWP3202096.2SANITARY SEWER GENERAL NOTES: I. Ail work materials shall be in conformance with the Standards and Specifications of the City of Renton Utility Department and the latest edition of the WSDOT/APWA Standards and Specifications. 2. The hours of work in the street right-of-way shall be limited to 8 : 3 0 am to 3 : 3 0 pm on weekdays unless otherwise approved in writing by the Department of Public Works at 235-2620. All street closures, partial or full, shall be approved by the Department of Public Works 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 Utility Department 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, Public Works Department 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 licensed Professional Surveyor. II. Backf ill 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 fill over 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 saw in a continuous line. A temporary mix patch must be place immediately after backfill and compaction. A permanent hot mix patch shall be placed within 30 days and shall be per City of Renton 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 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. 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. EX. p VEMF_N7. SAW CUT RE -(o2E PE PAVEMEN PATC ING DETAI E . 298' -8"0 C NC. at 0.30 % j J)OT G®N KA�LTOiR T t�tOVlpE' L^A.� AT MEE71At FO& " EX WATER Md; I N i. a r+arcrA WAT J p YE lFY LOCATION- FoR ScT oA$416 wAT It MtA�Al atEr4Ae ca�(tH 1!t T+tA�rt7ta +II4TM +GOO LtAJ(v. ASPHALT CONCRETE (3" MIN.) REPLACEMENT PATCH TO BE 1" THICKER THAN PREVIOUSLY EXISTED. EXISTING ASPHAI -T CONCRETE -FINAL JOINT MUST BE SAW -CUT J. CRUSHED SURFACING 'OURSE COMPACTED CRUSHED ROCK BACKFILL EXISTING ASPHALT CONCRETE OVER PREPARED GRADE 1. SEE SECTIONS 7-18 AND 2-09 FOR PATCHING AND BACKFILLING SPECIFICATIONS. 2. ALL TRENCHES IN ROADWAY .AREAS SHALL BE BACKFILLED AND PATCHED WITH TEMPORARY ASPHALT AT THE END OF EACH WORK DAY, UNLESS PERMISSION IS GRANTED TO DO OTHERWISE BY THE CITY ENGINEER AND TRAFFIC ENGINEER. 3. ALL TEMPORARY PATCHES ON TRENCHES SHALL BE PERMANENTLY PATCHED WITHIN (2) WEEKS OF COMPLETION OF WORK WITHIN THE ROADWAY AREA. 4. SAW CUTS ON CONCRETE PAVEMENTS SHALL BE MADE NO MORE THAN ONE --HALF THE DEPTH OF THE EXISTING SLAB. 5. COMPACTED GRAVEL BACKFILL CLASS "B" MAY BE USED UPON APPROVAL OF THE ENGINEER ON TRENCHES OVER 200 FEET IN LENGTH. PAVEMENT PATCHING DETAILS i i EXISTING ,GROUND L I E at PIPE; - _T11 r 198' -8"0 P.V�C. at 2.90 % RECOMMENDED FOR APPROVAL 13Y &� RECOMMENDED FOR APPROVAL BY .r►� At>�cz �ru.t"Y f • put, I M.H. - 4B" c i 11M.H. • 1-4816 RIM 37 .1 I I NV. 8 (Out) 367. 5 !RIM 368.4 350 INV. 6"0 (0 it 361.30 NEW T E ROP CONN ION ' :INV. 6 0 (I 0) 361.57 1 SANIT RY SEWER MH (Ex.) I RIM E EV.= 369.09 88111wl 1sEl 340 - -crt-- INV. 0"0 (In) N.E. 359.72 'DROP)g01402 j I i i Z CITY OF RENTON �t O 2f O 1270011 y 3f O DEPARTMENT OF PUBLIC WORKS -FROFILE !�A`" �' Iq `I� AN I CELLO SANITARY SEWER EXTENSION I SCALE., keorlzontal /11 20' PROFILE, GENERAL NOTES & DETAILS eN/co/ /" � /O' DESIGNED J•N• JAN. 1993 DATE FILE NO i, DRAWN S.R.N. i SCALE AS SHOWN FIM-D BOOR PAGC- CHECKED NO. REVISION BY APPR. DATE APPROVED SHEET-2-OF--3- 1 1 Of PUBLIC WORKS P qw2016 C z-) _ t -a SCANNED MAR 2 8 2003