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SA NI TA R Y SEWER N O TES & SPECIFICATIONS
Sanitary Sewer Notes and Specifications
THESE NOTES SHALL APPEAR ON PROJECTS FOR THE SANITARY SEWER UTILITY.
1. All work and work material shall be in conformance with the standards and
specifications of the City of Renton Planning/Building/Public Works Department
and the latest edition of the WSDOT/APWA Standards and Specifications, as
approved and modified by the City of Renton in the Renton Standard Plans &
Specifications. A set of approved plans shall be kept on site at a// times
during construction.
2. The hours of work in the street right of way shall be per City specifications
on weekdays unless otherwise approved in writing by the Planning/Building/Public
Works Department. An approved traffic control plan must be obtained prior to
beginning any work within public right of way.
J. All locations of existing utilities shown are approximate and it shall be the
contractors responsibility to verify the true and correct location so as to
avoid damage or disturbance.
4. A pre -construction 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
contractors responsibility to notify the Public Works inspector 24 hours in
advance of bockfilling all construction.
5. Contractor is solely responsible for the means, methods and sequences of
construction and for the safety of workers and others on the construction site.
6. It shall be the responsibility of the contractor to obtain street use and any
other related permits prior to any construction.
7. Plans approved by the City of Renton, Public Works Department shall take
precedence over all other plans.8. A copy of these approved plans must be on the
job site whenever construction is in progress.
9. The contractor shall provide the City of Renton with an as -built drawing of
the sanitary sewer system, which has been stomped and signed by a licensed
professional engineer or licensed professional surveyor.
10. 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 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 All over pipe shall be the some as described.
11. Open cut road crossings for utility trenches on existing traveled roadway
shall be backfilled with crushed rock and mechanically compacted unless
otherwise approved by the Public Works inspector. Cuts into the existing
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 within 10 days and sho/I be per City of Renton current
standards.
12. Datum shall be City of Renton, 1988 NA VD.
13. 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.
14. All pipe and appurtenances shall be laid on a properly prepared foundation
in accordance with the standards and specifications of the City of Renton
Planning/Building/Public Works Deportment and the latest edition of the
WSDOT/APWA Standards and Specifications, as approved and modified by the City
of
Renton in the Renton Standard Plans & Specifications. 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 inches above and
below the pipe.
15. Sanitary sewer pipe sholl be polyvinyl chloride (PVC) rubber gasketed ASTM D
3034, SOR 35, or ductile iron class 50, unless otherwise approved by the
Wastewater Utility.
16. In unimproved areas, manhole to extend minimum 6 inches and maximum 12
inches above finished grade or must have minimum 2' diameter concrete ring
poured at grade. In paved area, cover must slope in all directions to match
paving.
1/2"
118" RAISE-112" WIDE
BORDER
10"
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8 314"
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of
7"
7 3 4"
8"
15"
CAST IRON RING AND COVER
3/4" SPACES SPACED-3/4"
AS INDICATED -HT 1/8"
0,,1„
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12"o—
FIBER JOINT -
PACKING
PROPERTY LINE
SIDE SE �v`ER MAIN TO BUILDING SEWER
6 z ! FUTURE
6" SEWER PIPE ' 6.0 ~� B L DG SEWER
6" SIDE OUTLET TEE z; 2"X4" STUD SERVICE ARKER
PAINT UPPER PORTION WHITE
W AND STENCIL ON SIDE WORD
"SEWER" WITH 3 " HIGH
a BLACK LETTERS.
6" SIDE SEWER & BUILDING SEWER
PLAN
6" SIDE SEWER
1: J. 5 MIX NOTE:
CONCRETE , \ 60' ALLOWABLE MAX SIDE SEWER SHALL HA VE A
BLOCKING FOR CAST OR MINIMUM 5' COVER AT PROPERTY
X DUCTILE IRON PiPE. LINE OR 3-5' LOWER THAN THE
61MIN 4 MA LOWEST HOUSE ELEVATION, WHICH-
5' MIN EVER IS LOWER.
6 "MIN HORIZON TA
6" SIDE OUTLET TEE
'-SEWER MAIN
CONC. BLOCKING ANGLE
OF TEE A T MAIN OVER 25 °
EL E VA TI ON
0�
OpAG
�G
0 DEG
G
90 MIN SLOPE
TYPICAL SIDE SEWER
EL E VA TI ON
--- 4 3/4 "
PLUG TO BE SEALED IN SAME
MANNER AS MAIN SEWER JOINTS
PIPE MA TER/AL
AS SPECIFIED. CLEAN -OUT DETAIL
EXISTING SEWER MAIN
�, 6 " SIDE SEWER
�- 6 "TES T TEE
TO BE INSTALLED
A T CONNECTION
NOTE.
MAKE TAP THROUGH CAST IRON
SADDLE SECURED TO SEWER MAIN
WITH STAINLESS STEEL BANDS
WHEN CONNECTING NEW SIDE
SEv ERS TO EXISTING MAIN.
VITRIFIED CLAY, PLAIN &
REINFORCED CONCRETE, DI &
C1 PIPE SEWER MAINS ARE TO
BE CORE DRILLED.
SIDE SEWER SERVICE DETAIL
T YP. SEE SH TS. 14 — 19
MANHOLE FRAME AND COVER
SEE DRA WING BR29
25"
::, ADJUSTME �'T 4" MIN.
CONE
,—MORTAR JOINTS
4 " MIN. STEPS— 3/4 " DEFORMED BAR
STEPS SHALL BE INCLUDED
Z _
6 112"
CONRETE RISER BY PIPE INC.
48" OR APPROVED EQUAL
MAX. PIPE SIZE-21 " 1. D.
fLADDER —STD. ALUMINUM
OR GAL VANIZED STEEL.
l CONCRETE SHELF
i
MOR TAR F LET
PRECAST BASE SECTION
OR CAST IN PLACE
6" MIN. b. .
6" MIN.
SANITARY MANHOLE TYPICAL DETAIL
(NTS)
T YP. SEE SH TS. 15 & 16
NOTES:
1. STEPS TO BE 3/4" 0 DEFORMED BAR GALVANIZED SAFTEY STEPS OR EQUAL
2. STEPS ARE TO BE IN PLACE BEFORE MANHOLE SECTIONS ARE INSTALLED
3. CASTING TO BE ❑LYMPIC FOUNDRY MH30 WITH MH30 D/T OR EQUAL, PER DWG, BR29
4. MANHOLE SECTIONS TO BE OF REINFORCED PRECAST CONCRETE
5. OPENING SHOULD BE ON DOWNSTREAM SIDE,
6. ALL JOINTS SHALL BE GROUTED,
7. SANITARY SEWER MANHOLES SHALL HAVE ALL INTERIOR
SURFACES, INCLUDING CHANNELING, COATED (SEALED)
WITH A HIGH SOLIDS URETHANE C❑ATING,
WASSER MC-C❑NSEAL OR APPROVED EQUAL;
COLOR OF COATING SHALL BE WHITE,
RECOMMENDED
FOR APPR VAL
BY DATE •S—e
BY DATE
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719022R5SITE.DWG
• BY DATE 5`720 OF: 27OS"
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