HomeMy WebLinkAboutR-419007NW 1/4 OF THE NW 1/4 AND THE NE 1/4 OF THE NW 1/4 SECTION 9, TOWNSHIP 23 NORTH, RANGE 05 EAST, W.M.
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DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
SEDIMEN'
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN)
BELOW INLET GRATE DEVICE
ISOMETRIC VIEW
sS
TE DEVICE
RETRIEVAL SYSTEM (TYP.)
OVERFLOW BYPASS (TYP.)
NOTES:
1. PROTECTION SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR
CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE CATCH BASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP.
2. INLET PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3. THE CONTRIBUTING DRAINAGE AREA MUST NOT BE LARGER THAN ONE ACRE.
4. SIZE THE BELOW INLET GRATE DEVICE (BIGD) FOR THE STORMWATER STRUCTURE IT WILL SERVICE.
5. THE BIGD SHALL HAVE A BUILT-IN HIGH -FLOW RELIEF SYSTEM (OVERFLOW BYPASS).
6. THE RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE BIGD WITHOUT SPILLING THE COLLECTED MATERIAL.
7. PERFORM MAINTENANCE IN ACCORDANCE WITH STANDARD SPECIFICATION 8-01.3(15).
8. ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE
STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 216,30
PUBLIC WORKS APPR ED:
PRDEPARTMENT CATCH BASIN INSERT (jAZ 9/28/2018
VAMOV Pubic Wu,k, Adm --t., DATE
CATCH BASIN INSERT
NTS
3
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DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
LEVEL BOTTOM
12" 'AIN.
2' MIN.
SWALE SPACING DEPENDS ON SLOPE GRADIENT
2
2 MAX.
MAX.
-11 1
1. CONDITIONS OF USE
1.1. REQUIRED AT:
1.1.1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELOW.
AVERAGE SLOPE
SLOPE PERCENT
FLOW PATH LENGTH
20HA V (OR LESS)
3-5 %
300 FEET
(10 TO 20)H:1 V
5-10 %
200 FEET
(4TO10)H:1V
10-25%
100FEET
(2 TO 4)H:1 V
25-50 %
50 FEET
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. FOR SLOPES STEEPER THAN 2H:1 V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED
INTERCEPTOR SWALES MAY BE USED. THE DESIRED MEASURE MUST BE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY
RUNOFF TO A SEDIMENT POND OR TRAP.
2.2. CONSTRUCTION TRAFFIC OVER TEMPORARY SWALES SHALL BE MINIMIZED.
3. MAINTENANCE STANDARDS
3.1. DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY.
3.2. IF THE FACILITIES DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE SWALES SHALL BE INCREASED.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 217.10
PUBLIC WORKS D.
INTERCEPTOR SWALE PPR 9/28/2018
DEPARTMENT GAZ
Pubic Works Admini t-.1 DATE
INTERCEPTOR SWALE
NTS
• Call 811
• ® two business days
before you dig
1
CLEAR AND GRADE PERMIT
TJP
08/10/211
JSF
2
CLEAR AND GRADE PERMIT RESUBMITTAL
TJP
08/11/21
JSF
3
CLEAR AND GRADE PERMIT RESUBMITTAL
TJP
09/10/21
JSF
NO.
REVISION
BY
DATE
APPR
4
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SURVEYED:
SCALE:
ZLN
AS NOTED
DESIGNED:
TJP/JRN
DRAWN:
TAD/KSA
ONE INCH
CHECKED:
MNF
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
APPROVED:
JSF
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
0—
K
oc FLOW uy OO <5OOo
PLAN
SECTION B
DITCH
CHECK DAM (TYP.)
NOTES:
1. CONDITIONS OF USE
1.1. WHERE THERE IS CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM SEDIMENT PONDS OR TRAPS.
1.2. TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON -EROSIVE DISCHARGE POINT.
2. MAINTENANCE STANDARDS
2A1 ANY SEDIMENT DEPOSITION OF MORE THAN 6 INCHES SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY,
2.2. THE CHECK DAMS SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING AND EROSION HAS OCCURRED,
AFFECTED AREAS SHALL BE PROTECTED BY RIPRAP OR AN EROSION CONTROL BLANKET OR NET.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 217.40
PUBLIC WORKS DITCH CHECK DAMS PPR D. 9/28/2018 PRI DEPARTMENT GAZ
Pubic Woks Ad.,--m, DATE
CHECK DAM
NTS
R-419007
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IN COMPLIANCE WITH CITY OF RENTON STANDARDS
jKPff EDEVEiLOPMENT ENGINEERINGIL Ekreva:rns
E WATER UTILITY
o 09/27/2021 09/27/2021 '
1601 5th Avenue, Suite 1600
Seattle, WA 98101
206.622.5822
09/10/2021 www•kpff.com
VERTICAL: NAVD 1988 •
HORIZONTAL: NAD 1983/1991 A11016[% I CITY OF
;R
RENTON
DATUM •
Planning/Building/Public Works Dept.
SOLERA
2842 NE SUNSET BLVD
RENTON, WA 98056
TESC DETAILS
DATE:
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