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DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
3'-30', SEE NOTE 2.3
ROLL SPACII
DEPENDS 01
TYPE AND SI
STEEPNESS
4'
DIMENT, ORGANIC MATTER,
VD NATIVE SEEDS ARE
NPTURED BEHIND THE ROLLS
STRAW ROLLS MUST BE
PLACED ALONG SLOPE
CONTOURS
ADJACENT ROLLS SHALL
TIGHTLY ABUT
WOODEN STAKE
LIVE STAKE
ToEo S.C. NOTES AND DETAILS
OF
BLUE ORIGIN RENTON ROAD IMPROVEMENTS
0" DIA.
NOTES:
1. CONDITIONS OF USE
1.1. INSTALL ON DISTURBED AREAS THAT REQUIRE IMMEDIATE EROSION PROTECTION.
1.2. USE ON SLOPES REQUIRING STABILIZATION UNTIL PERMANENT VEGETATION CAN BE ESTABLISHED.
1.3. CAN BE USED ALONG THE PERIMETER OF A PROJECT, AS A CHECK DAM IN UNLINED DITCHES AND AROUND TEMPORARY STOCKPILES.
1.4. WATTLES CAN BE STAKED TO THE GROUND USING WILLOW CUTTINGS FOR ADDED REVEGETATION.
1.5. RILLING CAN OCCUR BENEATH AND BETWEEN WATTLES IF NOT PROPERLY ENTRENCHED, ALLOWING WATER TO PASS BELOW AND BETWEEN WATTLES.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. IT IS CRITICAL THAT WATTLES ARE INSTALLED PERPENDICULAR TO THE FLOW DIRECTION AND PARALLEL TO THE SLOPE CONTOUR.
2.2. NARROW TRENCHES SHOULD BE DUG ACROSS THE SLOPE, ON CONTOUR, TO A DEPTH OF 3 TO 5 INCHES ON CLAY SOILS AND SOILS WITH GRADUAL SLOPES.
ON LOOSE SOILS, STEEP SLOPES, AND DURING HIGH RAINFALL EVENTS, THE TRENCHES SHOULD BE DUG TO A DEPTH OF 5 TO 7 INCHES, OR 1/2 TO 2/3 OF THE
THICKNESS OF THE WATTLE.
2.3. START CONSTRUCTION OF TRENCHES AND INSTALLING WATTLES FROM THE BASE OF THE SLOPE AND WORK UPHILL. EXCAVATED MATERIAL SHOULD BE
SPREAD EVENLY ALONG THE UPHILL SLOPE AND COMPACTED USING HAND TAMPING OR OTHER METHOD. CONSTRUCT TRENCHES AT CONTOUR INTERVALS
OF 3 TO 30 FEET APART DEPENDING ON THE STEEPNESS OF THE SLOPE, SOIL TYPE, AND RAINFALL. THE STEEPER THE SLOPE THE CLOSER TOGETHER THE
TRENCHES SHOULD BE CONSTRUCTED. VERTICAL DISTANCE BETWEEN WATTLES IS NOT TO EXCEED 10 FEET.
2.4. INSTALL THE WATTLES SNUGLY INTO THE TRENCHES AND ABUT TIGHTLY END TO END. DO NOT OVERLAP THE ENDS.
2.5. INSTALL STAKES AT EACH END OF THE WATTLE, AND AT 4 FOOT CENTERS ALONG THE ENTIRE LENGTH OF THE WATTLE.
2.6. IF REQUIRED, INSTALL PILOT HOLES FOR THE STAKES USING A STRAIGHT BAR TO DRIVE HOLES THROUGH THE WATTLE AND INTO THE SOIL.
2.7. AT A MINIMUM WOODEN STAKES SHOULD BE APPROXIMATELY 3/4 X 3/4 X 24 INCHES. WILLOW CUTTINGS OR 3/8-INCH REBAR CAN ALSO BE USED FOR STAKES.
2.8. STAKES SHOULD BE DRIVEN THROUGH THE MIDDLE OF THE WATTLE, LEAVING 2 TO 3 INCHES OF THE STAKE PROTRUDING ABOVE THE WATTLE.
3. MAINTENANCE STANDARDS
3.1. INSPECT WATTLES PRIOR TO FORECASTED RAIN, DAILY DURING EXTENDED RAIN EVENTS, AFTER RAIN EVENTS, WEEKLY DURING THE WET SEASON, AND AT
TWO WEEK INTERVALS AT ALL OTHER TIMES OF THE YEAR.
3.2. REPAIR OR REPLACE SPLIT, TORN, RAVELING, OR SLUMPING WATTLES
3.3. REMOVE SEDIMENT ACCUMULATIONS WHEN EXCEEDING 1/2 THE HEIGHT BETWEEN THE TOP OF THE WATTLE AND THE GROUND SURFACE.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 213.40
URIPUBLIC WORKS APPR ED: DEPARTMENT STRAW WATTLES GAZ 9/28/2018
Public Works Administrator DATE
BENCHMARK
DATUM
HORIZONTAL DATUM: N ZONE NAD 83/201 1 VERTICAL DATUM: NAVD88
: 4 5
A PORTION OF SECTION 1/4, OF THE NW 1/4 OF SEC. 19 TOWNSHIP 23 N., RANGE 5 E., W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
21'x2" 14 GAUGE WIRE, OR
EQUIVALENT, IF STANDARD
STRENGTH FABRIC USED
FILTER FABRIC 2' MIN.
6' MAX. I I I 12" MIN.
POST SPACING MAY BE INCREASED 4 x4" MIN. TRENCH
TO 8' IF WIRE BACKING IS USED
BACKFLL TRENCH WITH NATIVE SOIL
OR 3/4'! TO 1-1/2" WASHED GRAVEL
2"x4" WOOD POSTS, STEEL FENCE POSTS, OR EQUIVALENT (TYP.)
NOTES:
1. CONDITIONS OF USE
1I .1. SILT FENCE MAY BE USED DOWNSLOPE OF ALL DISTURBED AREAS.
1.2. SLT FENCE IS NOT INTENDED TO TREAT CONCENTRATED FLOWS, NOR IS IT INTENDED TO TREAT SUBSTANTIAL AMOUNTS OF OVERLAND FLOW. ANY CONCENTRATED
FLOW MUST BE CONVEYED THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR POND.
2. DESIGN AND INSTALLATION SPECIFICATIONS
2.1. THE GEOTEXTILE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF THE MANUFACTURER'S FABRIC SPECIFICATIONS MUST BE AVAILABLE ON SITE.
AOS (ASTM D4751)
30-100 SIEVE SIZE (0.60-0.15mm) FOR SILT FILM
50-100 SIEVE SIZE (0.30-0.15mm) FOR OTHER FABRICS
WATER PERMITTIVITY (ASTM D4491)
0.02 SEC"' MINIMUM
GRAB TENSILE STRENGTH (ASTM D4632)
180 LBS. MIN. FOR EXTRA STRENGTH FABRIC
100 LBS. MIN. FOR STANDARD STRENGTH FABRIC
GRAB TENSILE ELONGATION (ASTM D4632)
30 % MAX. (WOVEN)
ULTRAVIOLET RESISTANCE (ASTM D4355)
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 2HAV
2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4"X4" TRENCH MAY BE REDUCED AS LONG AS THE BOTTOM 8 INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND
SECURE IN A TRENCH THAT STABILIZES THE FENCE AND DOES NOT ALLOW WATER TO BYPASS OR UNDERMINE THE SILT FENCE.
2.5. FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE.
3. MAINTENANCE STANDARDS
3.1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY.
3.2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF 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 REMOVE THE TRAPPED SEDIMENT.
3.4. SEDIMENT MUST 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.
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 214.00
URI
DEPARTMENT PUBLIC WORKS SILT FENCE PR D. GAZ 9/2s/zols I
VAMIF
Public Works Al-1111.m1 DATE
:45
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
AX.
5" M
DRAINAGE GRATE TRIM
GRATE FRAME _
C— OVERFLOW BYPASS
d
• BELOW INLET GRATE DEVICE
SEDIMENT AND DEBRIS
FILTERED
U
WATER
SECTION VIEW
DRAINAGE GRATE
(RECTANGULAR GRATE SHOWN) RETRIEVAL SYSTEM (TYP.)
OVERFLOW BYPASS (TYP.)
BELOW INLET GRATE DEVICE
ISOMETRIC VIEW
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
URIPUBLIC WORKS APPR ED:
DEPARTMENT CATCH BASIN INSERT GAZ 9/28/2018VAMIV �
Public Works Administrator DATE
:45
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SURVEYED: SCALE: DATE `
BCE VERTICAL: NAVD 1988 T.E.S.C. NOTES AND DETAILS 2/22/2023 »— ' HORIZONTAL: NAD 1983/1991 CITY O F 00
DESIGNED:ETDM 1 20 =� BLUE ORIGIN RENTON — C
FIELDBOOK: --
DRAWN: TDM RENTON ROAD IMPROVEMENTS PAGE:
_--
• DRAWING N0:
ONE INCH DATU M I 1 1
1 REVISED PER CITY OF RENTON 1/24/23 REVIEW TDM 2/22/2 CHECKED: AT FULL SCALE Planning/Building/Public Works Dept. INTERSECTION OF MAPLE AVENUE S.W AND 22334 U
IF NOT ONE INCH
NO. REVISION BY DATE APPR APPROVED:
SCALE ACCORDINGLY S.W. 16TH STREET, RENTON, WA, 98057 SHEET:�� OF: ^
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