HomeMy WebLinkAboutS-208103I SANITARY SEWER NOTES & SPECIFICATIONS
1. All work materials shall be in conformance With the standards and spec ,cations of the Ca•
of Renton Utility Department and tiie latest edition of the WSDOT/APtt A Standards end
Specifications.
2. The hours of work in the street right-of-way shall be limited to 830 a.m. to 330 p -m- on
weekdays unless otherwise approved in writing by the Department of Public Worliks at 235-
2620- Al 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 21
hours in advance.
3- All construction shall be in accordance with "Standard Specifications for Municipal Pubi =c
Works Construction' prepared by Washington State Chapter American Public IVorls
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 sa as to avoid damage or disturbance-
s. 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 io
starting construction. (Inspection will be accomplished by a representative of the City of
Renton.) It shall be the contractor's responsibility to notify the Ltility Department 24 hours
in advance of backfilling all construction.
6. Contractor is solely responsible for the means, methods, and sequences of corsu- action, and
for the safety of workers and others on the construction site-
7 It shall be `her of the contractor to obtain sheet use and any other related
- � r,:.�rb.l�.y
permits prior to any construction.
8. Plans approved by the City of Renton, Public Works Department shall takk-e 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.
11. Backfill shall be placed equally on both sides of the pipe in layer with a loosee average depth
of 6 inches, maximum depth of 8 inches, thoroughly tamping each layer to 95 percent of
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mamum 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 desmbed.
12. Open cut road crossings for utility trenches on existing traveled roadway shall be backf-illed
with crushed rock and mechanically compacted. Cuts into the exacting asphalt. shall be
neatline cut with 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 with 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 rbe prevention of or. -site erosion after the
completion of construction. 5PECI.FIC MIX PE516Ar 514ALL 3E SIR5M ITi<p
TO THE CITY OF RENTON FOR REVIEW PR102 TO UTILIZATIOtI-
15. All pipe and appurtenances shall be laid on a property 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 french -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
D3034, SDR 35, or Ductile Iron Class 50, UULE55 DTLIEfiWISE 5FECIFle-O
Oki PL41.115. -
17. In unimproved areas, manhole to extend minimum 6 inch and maximum IS
inch above finished grade. In paved area, cover must slope in all directions to
match paving.
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SLOPES GREATER THAN -20% AS FOLLOWS:
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G.R. (BOB) PARROTT, P.E.
CONSULTWG MIX 5 TRANSPORTATION ENC-INEEMM
11611 N.E. 116TH STREET KIRKLAND,- WASHINGTON 98034 (206) 823 -4940
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CITY OF RENTON
D E P A R T M E N T O F PUBLIC WORK S
THE CREEKSIDE ON SUNSET
SANITARY SEWER NOTES & DETAILS
:SIGNED r?P DATF ZI 1Z FILE NO.
LAWN
iECKED SCALP 1.1011 I 11-AO
PwOVED SH EEIi/__ ZF 20
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