HomeMy WebLinkAboutR-382305JOINTS IN FILTER FABRIC SHALL BE SPLICED
AT POSTS. USE STAPLES, WIRE RINGS, OR
FOIJIVAI PNT TO ATTACH PARPIr Tn P' CTS;
6' MAX.
POST SPACING MAY BE INCREASED
TO 8' IF WIRE BACKING IS USED
T'x2'BY 14 Ga. WIRE OR
EQUIVALENT, IF STAI
STRENGTH FABRIC k
FIL'
NOTES
1. CONDITION OF USE
1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2. SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW.
ANY CONCENTRATED FLOW MOST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. THE GEOTEXTILE USED MOST MET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MOST BE
AVAILABLE ON SITE.
AOS (ASTM D4751) 30-100 SIEVE SIZE (0.60-0,15MM) FOR. SILT FILM
50-IOOSIEVE SIZE (030-0.15MM) FOR OTHER FABRICS
WATER PEwMI_TTATY (ASTM D491) 0.02SECA-1 MINIMUM
GRAB TENSILE STRENCHT (ASTM D4632) 180, LBS. MIN. FOR EXTRA STRENGH FABRIC
100 LBS. MIN. FOR STANDARD STRENGHT FABRIC
GRAB TENSILE ELONGATION (ASTM D4632) 30 % MAX, '
JULTRAVIOLATE RESISTANCE (ASTMD4355) 70%MIN.
2.2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST
SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2.3. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V
2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE
IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT
FENCE.
3. MAINTENANCE STANDARDS
3.1. ANY DAMAGE SHALL BE REPAIR IMMEDIATELY.
3.2. IF CONCENTRATED FLOES ARE EVIDENT UPHILL OD THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
3.3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND
THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVED THE TRAP
SEDIMENT.
3.4. SEDIMENT MOST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH.
3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
Y,
STD. PLAN - 214.00
+t PUBLIC WORKS SILT FENCE
MARCH 2008
DEPARTMENT
fly
2:1 MAX. SLOPE
LEVEL BOTTOM
SWALE SPACING DEPENDS ON SLOPE GRADIENT
NOTES
1. CONDITION OF USE
1.1. REQUIRED AT:
1.1-1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1 V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELLOW.
AVERAGE SLOPE SLOPE PERCENT FLOWPATH LENGTH
MINIMUM 4'x4" TRENCH
3-5%
BACKFILL TRENCI
(10 TO 20) H: 1V
NATIVI
200 FEET
2"x4'WOOD POSTS, STEEL FENC
10-25%
POSTS, REBAR, OR EQUIVALENT
NOTES
1. CONDITION OF USE
1.1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2. SILT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW.
ANY CONCENTRATED FLOW MOST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. THE GEOTEXTILE USED MOST MET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MOST BE
AVAILABLE ON SITE.
AOS (ASTM D4751) 30-100 SIEVE SIZE (0.60-0,15MM) FOR. SILT FILM
50-IOOSIEVE SIZE (030-0.15MM) FOR OTHER FABRICS
WATER PEwMI_TTATY (ASTM D491) 0.02SECA-1 MINIMUM
GRAB TENSILE STRENCHT (ASTM D4632) 180, LBS. MIN. FOR EXTRA STRENGH FABRIC
100 LBS. MIN. FOR STANDARD STRENGHT FABRIC
GRAB TENSILE ELONGATION (ASTM D4632) 30 % MAX, '
JULTRAVIOLATE RESISTANCE (ASTMD4355) 70%MIN.
2.2. STANDARD STRENGTH FABRIC REQUIRES WIRE BACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST
SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2.3. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL NOT BE STEEPER THAN 2H:1V
2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE
IS WELL BURIED AND SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT
FENCE.
3. MAINTENANCE STANDARDS
3.1. ANY DAMAGE SHALL BE REPAIR IMMEDIATELY.
3.2. IF CONCENTRATED FLOES ARE EVIDENT UPHILL OD THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
3.3. IT IS IMPORTANT TO CHECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A BARRIER TO FLOW AND
THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE OR REMOVED THE TRAP
SEDIMENT.
3.4. SEDIMENT MOST BE REMOVED WHEN SEDIMENT IS 6 INCHES HIGH.
3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED.
Y,
STD. PLAN - 214.00
+t PUBLIC WORKS SILT FENCE
MARCH 2008
DEPARTMENT
fly
2:1 MAX. SLOPE
LEVEL BOTTOM
SWALE SPACING DEPENDS ON SLOPE GRADIENT
NOTES
1. CONDITION OF USE
1.1. REQUIRED AT:
1.1-1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1 V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF.
1.1.2. AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELLOW.
AVERAGE SLOPE SLOPE PERCENT FLOWPATH LENGTH
20HAV
3-5%
300 FEET
(10 TO 20) H: 1V
5-10%
200 FEET
(4 TO 10) H: 1V
10-25%
100 FEET
(2 TO 4) H: 1V r
25-509`
CATCH BASIN
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. FOR SLOPES STEEPER THAN 21HAV WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER
SPACED INTERCEPTOR SWALES MAY BE USED. THE DESIRE MEASURE MOST 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 FACILITY DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF THE SWALES SHALL BE
INCREASED.
INSTALL D
IS A ROAD
PER CITY
NW L4. NW1144FSEC. 20, TWF 23 N.. RGE. 5 E.. W.M.
RIVEWAYS SHALL BE PAVED TO THE EDGE
lF R -O -W PRIOR TO INSTALLATION OF THE
,CONSTRUCTION ENTRANCE TO AVOID
AMAGING OF THE ROADWAY
F IS RECOMMENDED THAT THE
:.NTRANCE BE CROWNED SO THAT
'UNOFF DRAINS OFF THE PAD
14 ----------- PROVIDE FULL WIDTH OF
NOTES INGRESS/EGRESS AREA
1. CONDITION OF USE
tt CONSTRUCTION ENTRANCE SHALL BE STABILIZED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND TRAVELING ON
PAVED ROADS OR OTHER PAVED AREAS WITHIN 1,000 FEET OF THE SITE.
IGRAB TENSILE STREBNGTH (ASTM 04751) 200 PSI MIN.
GRAB TENSILE ELONGATION (ASTM D4632) 30-A MAX.
MULLEN BURST STRENGTH (ASTM D3786 -80A 400 PSI MIN
AOS (ASTM D4751) 21 -45 (U.S. STANDARD SIEVE SIZE)
2. DESIGN AND INSTALLATION SPECIFICATIONS
21. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN AIRES THAT WILL BOT BE USED
FOR PERMANENT ROADS. HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY
AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO
PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT.
22, FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE.
2.3. WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY
INCREASE THE EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE,
3. MAINTENANCE STANDARDS
3,1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS.
3,2. IF THE ENTRANCE IS NOT PREVENTING SEDIMENT BEING TRACKED ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO KEEP THE
STREETS FREE OF SEDIMENT SHALL BE USED, THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE
ENTRANCE, OR THE INSTALLATION OF THE WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH
CRUSHED ROCK, AND WASHED WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND,
3.3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY
SWEEPING SHALL BE REMOVED OR STABILIZED ON SITE, THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET,
EXCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS A THREAT TO PUBLIC SAFETY. IF IT NECESSARY TO WASH THE STREETS, A
SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND
DISCHARGED APPROPRIATELY.
3.4. ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY.
15. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE
INSTALLED TO CONTROL TRAFFIC.
STD. PLAN - 215.10
PUBLIC WORKS STABILIZED
- - ------------------------ — ;_--------------- - -----
DEPARTMENT CONSTRUCTION ENTRANCE - - —
MARCH 2008
ROCK MUST COMPLETELY COVER THE
2:1 SLOPES
100-1
-11 F -El
A
L = THE DISTANCE SUCH THAT POINTS
A AND B ARE OF EQUAL ELEVATION
L
2"-4" ROCK
MIN.
NOTES
1. CONDITION OF USE
1.1. WERE CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM PONDS OR TRAPS.
1.2. TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON-EROSIVE DISCHARGE POINT.
2. MAINTENANCE STANDARDS
2.1. ANY SEDIMENT DEPOSITION OF MORE THAN 0.5 FEET 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.
STANDARD STRENGTH
GRATE
FILTER FABRIC
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1. CONDITION OF USE
1.1. 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 CATCHBASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP.
1.2. MAY BE USED ANYWHERE AT THE APPLICANT'S DISCRETION TO PROTECT DRAINAGE SYSTEM.
1.3. THE CONTRIBUTING DRAINAGE AREA MOST NOT BE LARGER THAN 1 ACRE.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. FILTER FABRIC IS ONLY ALLOWED WERE PONDING WILL NOT BE A TRAFFIC CONCERN AND WHERE SLOPE EROSION WILL NOT RESULT IF THE
CURB IS OVERTOPPED BY PONDER WATER.
2.2. THE PLACEMENT OF A FILTER FABRIC UNDER GRATES IS GENERALLY PROHIBITED AND THE USE OF FILTER FABRIC OVER GRATES IS STRICTLY
LIMITED AND DISCOURAGED.
3. MAINTENANCE STANDARDS
3.1. ANY ACCUMULATED SEDIMENT ON OR AROUND INLET PROTECTION SHALL BE REMOVED IMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED
WITH WATER AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON SITE OR HAULED OFF SITE.
y-,
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0 STD
+ PUBLIC WORKS FILTER FABRIC PROTECTION . PIAN 216.20
MIL
\ 11 DEPARTMENT
7
MARCH 2008
L I
DATUM
_VAilW; ;
BASIS OFBEAR/NGS
N895925 IW ALONG THE NORTH LINE OF THE N6141H#E5T WARIER OF SECT16W 20 BETHEEN
THE FOUND N6RTH OUARTER CORNER AND 7W FOUND 5ECTIOV CORNER PER REC60 OF
SURVEY RECORDED UNDER RECORDING NUMBER 200010101290OW1.
BENCHMARKS
y CITY OF RENTOV BENCHMARK NUMBER 418
Y_ Y
7 -7
STD. PIAN 217.10 STD. PIAN - 217.40 259RA55 PIN IN 0WRt F MWUMENT
PUBLIC WORKS INTERCEPTOR SWALE PUBLIC WORKS CHECK DAMS SPACING AND
+! ------ - --- - ------------ - ---- - - ---------------------------
L 0 CA 70 AT THE IN TERSEC T16 W OF SOUTH 7TH 5 TREE T
DEPARTMENT DEPARTMENT CROSS SECTIONS
17 7
MARCH 2008
MARCH 2008 AND RENT0IV A VENUE SOUTH.
ELEVATIOV 30580 (0216W)
R-382305
THIS TES.C. PLANAPPLIES
TO THE DRY SE4 SON Oft Y
IN COMPL 1A NCE WITH CITY OF RENTON
STANDARDS
BY: DATE
BY: DATE
BY: DATE
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