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SURFACE WATER DRAINAGE NOTES AND
SPECIFICATIONS
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING
MUST BE HELD WITH THE CITY OF RENTON PLAN REVIEWER.
2, ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE 1996 STANDARD SPECIFICATIONS FOR ROAD,
BRIDGE AND MUNICIPAL CONSTRUCTION PREPARED BY WSDOT AND THE AMERICAN PUBLIC WORKS
ASSOCIATION (APWA), AS AMENDED BY THE CITY OF RENTON PUBLIC WORKS DEPARTMENT.
3. THE SURFACE WATER DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED
PLANS, WHICH ARE ON FILE IN THE PUBLIC WORKS DEPARTMENT, ANY DEVIATION FROM THE APPROVED
PLANS WILL REQUIRE WRITTEN APPROVAL FROM THE CITY OF RENTON PUBLIC WORKS DEPARTMENT,
SURFACE WATER UTILITY SECTION,
4. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN
PROGRESS.
5. DATUM SHALL BE NAVD 88 UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON PUBLIC WORKS
DEPARTMENT. REFERENCE BENCHMARK AND ELEVATIONS ARE NOTED ON THE PLANS.
6. ALL SEDIMENTATION/EROSION FACILITIES MUST BE IN OPERATION PRIOR TO CLEARING AND BUILDING
CONSTRUCTION, AND THEY MUST BE SATISFACTORILY MAINTAINED UNTIL CONSTRUCTION IS COMPLETED
AND THE POTENTIAL FOR ON -SITE EROSION HAS PASSED.
7, ALL RETENTION/DETENTION FACILITIES MUST BE INSTALLED AND IN OPERATION PRIOR TO OR IN
CONJUNCTION WITH ALL CONSTRUCTION ACTIVITY UNLESS OTHERWISE APPROVED BY THE PUBLIC
WORKS DEPARTMENT, SURFACE WATER UTILITY SECTION.
8. GRASS SEED MAY BE APPLIED BY HYDROSEEDING. THE GRASS SEED MIXTURE, OTHER THAN CITY OF
RENTON APPROVED STANDARD MIXES, SHALL BE SUBMITTED BY A LANDSCAPE ARCHITECT AND
APPROVED BY THE PUBLIC WORKS DEPARTMENT, SURFACE WATER UTILITY SECTION.
9. 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
SPECIFICATION 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, ALL PIPE BEDDING SHALL
BE APWA CLASS "C", WITH THE EXCEPTION OF PVC PIPE. ALL TRENCH BACKFILL SHALL BE
COMPACTED TO MINIMUM 957. FOR PAVEMENT AND STRUCTURAL FILL AND 907o OTHERWISE PER ASTM
D-1557-70. PEA GRAVEL BEDDING SHALL BE 6 INCHES OVER AND UNDER PVC PIPE.
ELEVATION
Z ELEV.
= 388.00
til h`
OVERFLOW ELEV. '
TO PROVIDE DETENTION
& OIL SEPARATION
PER PLANS
PIPE SUPPORT -
(SEE NOTE 3) 3"x
075" ALUMINUM
OR .079" STEEL
IN _
390.00
RESTRICTOR PLATE WITH ORIFICE #1
(SEE NOTE 9)
ELEV. = 388, 00
ORIFICE = 3.45" DIA.
?'d- 00 MIAP0d
+
_OUTLET PIPE
SEE NOTES 5,6
ROUND MANHOLE COVER WITH
LOCKING BOLTS MARKED 'DRAIN'
(SEE SP PAGE 8074)
4" MIN
16' MAX
ELEV. = 392.55
ORIFICE = 3.85 DIA #3
STANDARD GALVANIZED
STEEL LADDER/STEPS
ELEV. = 392.25
ORIFICE = 4.05 DIA #2
CLEANOUT GATE: SHEAR GATE
8" DIAMETER MIN.
(SEE DWG NAME BR05)
2' IINJ r,
�ib9.98 a
INLET PIPE
OR PIPES
S
c
0
INV. _
a N-390.00 390.02 •8
z
it
1 54 MIN
N DIAMETER
e
SECTION A -A
TOUT GATE: SHEAR GATE
%METER MIN.
(SEE DWG NAME D-27)
PLAN VIEW
SEC. 15, TWP. 23 N., RNG. 5 E., W.M.
10, GALVANIZED STEEL PIPE AND ALUMINIZED STEEL PIPE FOR ALL DRAINAGE FACILITIES SHALL HAVE
ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE,
11. STRUCTURES SHALL NOT BE PERMITTED WITHIN 10 FEET OF THE SPRING LINE OF ANY STORM DRAINAGE
PIPE, OR 15 FEET FROM THE TOP OF ANY CHANNEL BANK,
12. ALL CATCH BASIN GRATES SHALL BE DEPRESSED 0,10 FEET BELOW PAVEMENT LEVEL.
13, OPEN CUT ROAD CROSSINGS THROUGH EXISTING PUBLIC RIGHT OF WAY WILL NOT BE ALLOWED UNLESS
SPECIFICALLY APPROVED BY CITY OF RENTON PLANNING/BUILDING/PUBLIC WORKS ADMINISTRATOR.
14. ROCK FOR EROSION PROTECTION OF ROADSIDE DITCHES, WHERE REQUIRED, SHALL BE OF SOUND
QUARRY ROCK PLACED TO A DEPTH OF ONE (1) FOOT AND MUST MEET THE FOLLOWING
SPECIFICATIONS: 4 - 8 INCH ROCK / 40 - 707. PASSING; 2 - 4 INCH ROCK / 30 - 40% PASSING;
AND LESS THAN 2 INCH ROCK / 10 - 20% PASSING.
15. ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE
SYSTEM, UNLESS APPROVED BY THE CITY PLAN REVIEWER OR SURFACE WATER UTILITY SECTION. AN
ACCURATELY DIMENSIONED, CERTIFIED AS -BUILT DRAWING OF THIS DRAINAGE SYSTEM WILL BE
SUBMITTED TO THE CITY UPON COMPLETION.
16, ISSUANCE OF THE BUILDING OR CONSTRUCTION PERMITS BY THE CITY OF RENTON DOES NOT RELIEVE
THE OWNER OF THE CONTINUING LEGAL OBLIGATION AND/OR LIABILITY CONNECTED WITH STORM
SURFACE WATER DISPOSITION. FURTHER, THE CITY OF RENTON DOES NOT ACCEPT ANY OBLIGATION
FOR THE PROPER FUNCTIONING AND MAINTENANCE OF THE SYSTEM PROVIDED DURING CONSTRUCTION.
17, THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARD, SAFETY DEVICES,
PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT THE LIFE, HEALTH,
AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF
WORK COVERED BY THE CONTRACT ANY WORK WITHIN THE TRAVELED RIGHT OF WAY THAT MAY
INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE A TRAFFIC CONTROL PLAN APPROVE BY THE
PUBLIC WORKS DEPARTMENT, TRANSPORTATION SYSTEMS DIVISION. ALL SECTIONS OF THE WSDOT
STANDARD SPECIFICATIONS 1-07-23 TRAFFIC CONTROL SHALL APPLY,
18, SPECIAL DRAINAGE MEASURES WILL BE REQUIRED IF THE PROJECT LOCATION IS WITHIN THE AQUIFER
PROTECTION AREA (APA).
19. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING
MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER.
20. ALL LIMITS OF CLEARING AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN(S)
SHALL BE CLEARLY FLAGGED IN THE FIELD AND OBSERVED DURING CONSTRUCTION,
MAXIMUM OPENING OF
e� GATE
NOTES
1. Except as shown or noted, units shall be constructed in accordance with the
requirements for Catch Basin Type 2, 54" minimum diameter.
2. For details showing grade ring, /odder, steps, handholds, and top slabs, see
Standard Plan "Miscellaneous Catch Basin Details".
3• Pipe supports and restrictor/separator shall be of the some material,
and be anchored at 3' maximum spacing by 5/8" dia, stainless steel
expansion bolts or embedded 2" in wall.
4. The restrictor/seporator shall be fabricated from .060" aluminum, or .064
aluminized steel, or .064" galvanized steel pipe: in accordance with
AASHTO M 36, M 196, and M 274, Galvanized steel shall have Treatment 1.
5. Outlet shall be connected to culvert or storm pipe with a standard coupling
bond for corrugated metal pipe, or grouted into the bell of conc=•ste pipe.
6. The vertical riser stem of the restrictor/seporotor shall be the some diameter
as the horizontal outlet pipe, with on 8" minimum diameter.
7. Frame and ladder or steps are to be offset so that.
A. Cleonout gate is visible from top.
B. Climb -down space is clear of riser and gate.
C. Frame is clear of curb (if any exists).
8. Multi -orifice elbows may be located as shown or all on one side of riser to assure
ladder clearance, Size of elbows and placement to be determined by the Engineer.
9. Restrictor plates with orifice as specified in the contract plans. Omit plate if for
oil pollution only. Specified opening to be cut round and smooth.
10, Cleanout/Sheor gate:
-Aluminum alloy per ASTM B-26-ZG-32a or cast iron ASTM A48 Class 30B as
required.
-Lift Handle either solid or tubing with adjustable hook as required.
-Neoprene rubber gasket required between riser mounting flange and gate flange.
-Mating surfaces of lid and body to be machined for proper fit.
-Flange mounting bolts shall be 3/8" diameter stainless steel.
11. Alternate cleanout/shear gates to the design shown on dwg. D-27 are acceptable,
provided they meet the material specifications above and have a six bolt, 10 3/8"
bolt circle for bolting to the flange connection.
12. Cleanout gate shall not open beyond the clear opening as shown on "Max Opening
of Gate" on dwg. BR05 by limiting hinge movement, stop tab, or some other
device.
REMOVABLE
WATER -TIGHT
COUPLING
ORIFICE
ELEVATION
STATED ON
PLANS
PLATE WI
ORIFICE A
SPECIFIED
ELBOW DETAIL
Y a ADOPTED
+ + CITY OF RENTON
F N T Standard plans
LST DATE: 12/96
FLOW RESTRI CT OR/OIL POLLUTION
CONTROL TEE TYPE CB 19
DWG. NAME : BR-04 SP PAGE : 8029
21. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN
OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO ENSURE THAT SEDIMENT LADEN
WATER DOES NOT ENTER THE NATURAL DRAINAGE SYSTEM, ALL EROSION AND SEDIMENT FACILITIES
SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR
CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED, THE
IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTATION CONTROL
SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITEE.
22. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO
BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES
AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE PERMITEE SHALL ANTICIPATE THAT MORE
EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO ENSURE COMPLETE
SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE
THE OBLIGATION AND RESPONSIBILITY OF THE PERMITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY
BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM
REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE
RECEIVING DRAINAGE SYSTEM,
23, APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE
AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS,
OR RETENTION FACILITIES.
24. DURING THE TIME PERIOD OF OCTOBER 1ST THROUGH APRIL 30TH, ALL PROJECT DISTRIBUTED SOIL
AREAS GREATER THAN 5,000 SQUARE FEET, THAT ARE TO BE LEFT UN -WORKED FOR MORE THAN 12
HOURS, SHALL BE COVERED BY MULCH, SODDING OR PLASTIC COVERING,
25. IN ANY AREA WHICH HAS BEEN STRIPPED OF VEGETATION AND WHERE NO FURTHER WORK IS
ANTICIPATED FOR A PERIOD 30 DAYS OR MORE, ALL DISTURBED AREAS MUST BE IMMEDIATELY
STABILIZED WITH MULCHING, GRASS PLANTING OR OTHER APPROVED EROSION CONTROL TREATMENT
APPLICABLE TO THE TIME OF YEAR. GRASS SEEDING ALONE WILL BE ACCEPTABLE ONLY DURING THE
MONTHS OF APRIL THROUGH SEPTEMBER, INCLUSIVE. SEEDING MAY PROCEED, HOWEVER, WHENEVER IT
IS IN THE INTEREST OF THE PERMITEE, BUT MUST BE AUGMENTED WITH MULCHING, NETTING OR OTHER
TREATMENT APPROVED BY THE CITY OF RENTON, OUTSIDE THE SPECIFIED TIME PERIOD.
26. FOR ALL EROSION/SEDIMENTATION CONTROL PONDS WHERE THE DEAD STORAGE DEPTH EXCEEDS 6
INCHES, A FENCE IS REQUIRED WITH A MINIMUM HEIGHT OF THREE (3) FEET, 3: 1 SIDE SLOPES,
27, A TEMPORARY GRAVEL CONSTRUCTION ENTRANCE, 24 FEET X 50 FEET X 8 INCHES OF 4 TO 6 INCH
QUARRY SPALLS SHALL BE LOCATED AT ALL POINTS OF VEHICULAR INGRESS AND EGRESS TO THE
CONSTRUCTION SITE,
HANDLE WITH LOCK PIN
ADJUSTABLE LOCK HOOK
WITH LOCK SCREW
LIFT HANDLE SHALL BE ATTACHED PER
MANUFACTURER'S RECOMMENDATIONS
o
ROD OR TUBING,
VARIABLE LENGTH
o�I"
LIFT HANDLE
ADJUSTABLE HOOK
tEVEt LINE
SIX EVENLY SPACED HOLES FOR BOLTING
TO FLANGE CONNECTION
0
FRONT SIDE
NOTES:
1. Shear gate shall be aluminum alloy per ASTM B-26-ZG-32a or cast iron ASTM
A48 Class 308 as required,
2. Gate shall be 8" diameter for pipe 12 inches or less in diameter, 12" diameter for
pipes greater than 12".
3. Gate shall be joined to tee section by bolting through flange.
4. Lift Rod: As specified by mfr. with handle extending to within one of cover and
adjustable hook lock fastened to frame or upper handhold.
5. Gate shall not open beyond the clear opening by limited hinge movement, stop
tab, or some other device.
6. Neoprene rubber gasket required between riser mounting flange and gate flange.
7. Mating surfaces of lid and body to be machined for proper fit.
8. Flange mounting bolts shall be 3/8" diameter stainless steel.
9. Alternate shear gates to the design shown are acceptable, provided they meet the
material specifications above.
�Y ADOPTED
+ + CITY OF RENTON
Standard plans
LST DATE: 8/97
PIVOTING FROP-T SMEAR GATE DETAIL
DWG. NAME : 13RO5
SP PAGE : B033
SPIGOT END
FLANGED END
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CHECKED FOR COMPLIANCE
TO CITY STANDARDS
Date_
Date -
Date
RECOMMENDED
FOR APPROVAL
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EXPIRES: MAY 6, 2007
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PROJECT NO.: 02054
DRAWN BY: AA/JGC
ISSUE DATE: 03-07-05
SHEET REV,: 06-13-05
t
STORM DRAINAGE
DETAILS
AND NOTES
02054DT03--C20
AW07tN
M7 Ab Z -V4b21
SCANNED OCT 2 8 2005