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Home My WebLink AboutR-381806rr W I- z W U 0 z z_ Q rr w O O Not Used Not Use 2 Y MAX. DRAINAGE CAA-P TRIM GRATE FRAME SEDIMENT AND DEBRIS v y + i f T [YVERFLO+iV BYPASS tr _I BELOW INLET GRATE DEVICE P Ill. FILTERED WATF,R 1 I ' A A h sEeTia a VIEW DRAINAGE GRATE - RECTANGULAR GRAB S41UNN BELOW INLET GRAT? GFVI ISOMETRIC VIEW RETRIEVAL SYSTEM (TYP.) 6VERFLOW BYPASS(TYP, NOTES 1. Slze the Bnlow Inlat Grata DeVlca (BIGD) farthe storm waters4uctura itwill service. 2. The BIGD sha11 have a bullt-In InIWflow relief system (ovenlow bypass) 3. the rattleval system md8t a!=Gw ramovai of the BIGD wlthoul sp.II rig the Dalledad maierlali. 4- Perform maln(er.ance In accordance with Standard Sperifcal nn "1.3(15). � � SM. PLAN — 216.30 `'I"I.L3�IC ti5'OitKS CATCH BASINFILTER 0. VARCTi 2O08 JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 6' MAX. POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED 2"x2" BY 14 Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC MINIMUM 4"x4" TRENCH BACKFILL TRENCH WITH NATIVE SOIL 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT z N 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. 30-100 SIEVE SIZE (0.60-0.15MM) FOR SI LT R LM ADS (ASTM D4751) 50-100 SI EVE SIZE(0.30-0.15MM) FOR OTHER FABRI CS WATER PERMITTIVITY ASTM D491 0.02 SEC^-1 MINIMUM GRAB TENSI LE STRENCHT(ASTM D4632) 180 LBS. MI N. FOR EXTRA STRENGH FABRIC 100 LBS. MIN. FOR STANDARD STRENGHT FABRIC GRAB TENSILE ELONGATION (ASTM D4632) 30 % MAX. ULTRAVIOLATE 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 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. p1�Y �� STD. PLAN — 214.00 + a� + PUBLIC WORKS SILT FENCE DEPARTMENT MARCH 2O08 r /n PP winr nnnr nnn%nnr rrni inr viv nvi vn�vnrn CORNER POST 2.875 INCH O.D. CONCRETE BLOCK NTS Construction Fence 3 3 -4 (1.2m) 1 D -25 \ m (3-Bm) ADJACENT ROLLS SHALL TIGHTLY ABUT SEDIMENT, ORGANIC MATTER, AND NATIVE SEEDS ARE \ CAPTURED BEHIND THE ROLLS 1 ROLL SPACING DEPENDS ON SOIL TYPE AND SLOPE STEEPNESS STRAW ROLLS MUST BE PLACED ALONG SLOPE CONTOURS 3"-5" `. (75-125mm) 8"40" DIA. 4 4+t (200-250mm) LIVE STAKE NOTES 1"x 1" STAKE 1. CONDITION OF USE 1.1. SEEDING SHALL BE USED THROUGH THE PROJECT ON DISTURBED AREAS THAT HAVE REACHED FINAL GRADE OR THAT WILL REMAIN UNWORKED FOR MORE THAN 30 DAYS. 1.2. VEGETATION -LINED CHANNELS SHALL BE SEEDED. CHANNELS THAT WILL BE VEGETATED SHOULD BE INSTALLED BEFORE MAJOR EARTHWORK AND HYDROSEEDED OR COVERED WITH A BONDED FIBER MATRIX (BFM) 1.3. RETENTION / DETENTION PONDS SHALL BE SEEDED AS REQUIRED. 1.4. AT THE CITY'S DISCRETION, SEEDING WITHOUT MULCH DURING THE DRY SEASON IS ALLOWED EVEN THOUGH IT WILL TAKE MORE THAN SEVEN DAYS TO DEVELOP AN EFFECTIVE COVER. 1.5. AT THE BEGINNING OF THE WET SEASON, ALL DISTURBANCES AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHOULD BE SEEDED WITHIN A WEEK OF BEGINNING OF THE WET SEASON. AT FINAL SITE STABILIZATION, ALL DISTURBED AREAS NOT OTHERWISE VEGETATED OR STABILIZED SHALL BE SEEDED AND MULCHED. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. THE BEST TIME TO SEED IS APRIL 1 THROUGH JUNE 30, AND SEPTEMBER 1 THROUGH OCTOBER 15. AREAS MAY BE SEEDED BETWEEN JULY 1 AND AUGUST 31, BUT IRRIGATION MAY BE REQUIRED IN ORDER TO GROW ADEQUATE COVER. AREAS MAY ALSO BE SEEDED DURING THE WINTER MONTHS, BUT IT MIGHT TAKE SEVERAL MONTHS TO DEVELOP A DENSE GROUNDCOVER DUE TO COLD TEMPERATURES. 2.2. TO PREVENT SEED FROM BEING WASHED AWAY CONFIRMED THAT ALL REQUIRED SURFACE WATER CONTROL MEASURES HAVE BEEN INSTALLED. 2.3. THE SEEDBED SHOULD BE FIRM BUT NOT COMPACTED. 2.4. IN GENERAL, 10-20-20N-P-K FERTILIZER MAY BE USED AT A RATE OF 90 POUNDS PER ACRE. IT IS RECOMMENDED THAT AREAS BEING SEEDED FOR FINAL LANDSCAPING CONDUCT SOIL TO DETERMINE THE EXACT TYPE AND QUANTITY OF FERTILIZER NEEDED. DISTURBED AREAS WITHIN 200 FEET OF WATER BODIES AND WETLANDS MUST USE SLOW RELEASE LO-PHOSPHORUS FERTILIZER. 2.5. THE FOLLOWING REQUIREMENTS APPLY FOR MULCHING 2.5.1. MULCH IS ALWAYS REQUIRED FOR SEEDING SLOPES GREATER THAN 3HAV 2.5.2. IF SEEDING DURING WET SEASON MULCH IS REQUIRED 2.5.3. THE USE OF MULCH MAY BE REQUIRED DURING WET SEASON AT THE CITYs DISCRETION IF GRASS GROWTH IS EXPECTED TO BE SLOW, THE SOILS ARE HIGHLY ERODIBLE DUE TO SOIL TYPE OR GRADIENT, THERE IS A WATER BODY CLOSE TO THE DISTURBED AREA, OR SIGNIFICANT PRECIPITATION IS ANTICIPATED BEFORE THE GRASS WILL PROVIDE EFFECTIVE COVER. 2.5.4. MULCH MAY BE APPLIED IN TOP OF THE SEED OR SIMULTANEOUSLY BY HYDROSEEDING. 2.6. HYDROSEEDING IS ALLOWED AS LONG AS TRACKIFIER IS INCLUDED. HYDROSEEDING WITH WOOD FIBER MULCH IS ADEQUATE DURING THE DRY SEASON. HYDROSEEDING WITH WOOD FIBER MULCH IS ADEQUATE DURING THE DRY SEASON. DURING THE WET SEASON, THE APPLICATION RATE SHOULD BE DOUBLED. IT MIGHT BE NECESSARY IN SOME APPLICATIONS TO INCLUDE STRAW WITH THE WOOD FIBER, BUT THIS CAN BE DETERMINED TO GERMINATION. 2.7. AREAS TO BE PERMANENTLY LANDSCAPED SHALL USE SOIL AMENDMENTS. GOOD QUALITY TOPSOIL SHALL BE TILLED INTO THE TOP SIX INCHES TO REDUCE THE NEED FOR FERTILIZER AND IMPROVED THE OVERALL SOIL QUALITY. MOST NATIVE SOILS WILL REQUIRE THE ADDITION OF 4 INCHES OF WELL -ROTTED COMPOST TO BE TILLED INTO THE SOIL TO PROVIDE A GOOD QUALITY TOPSOIL. `�Y STD. PLAN — 213.40 as + PUBLIC WORKS STRAW WATTLES �N LOB DEPARTMENT MARCH 2O08 DRIPLINE NTS Tree Protection 4 NTS Not Used 8 UPERMIT# U15000494 Approved By: Date: City of Renton Std Plan 216.30 NTS NTS Approved By: Date: I I Catch Basin Filter Silt Fence Straw Wattle Approved By: Date: Approved By: Date: I A• Jq DATE: of wasy SURVEYED: SCALE: VERTICAL: NOTED .. CITY OF AUTOMOTIVE TRAINING CENTER / / HORZONiAL:•NAD 1983/1991 �► 04 30 2015 COUGHLIN PORTERLUNDEEN DESIGNED: RENTON TECHNICAL COLLEGE FIELDBOOK: A CONSULTING STRUCTURAL AND CIVIL ENGINEERING CORPORATION DRAWN: LBJ � RENTON RENTON WASHINGTON PAGE: 801 SECOND AVENUE - SUITE 900 P: 206/343-0460 ONE INCH DATUM DRAWING NO: 43667 SEATTLE, WA 98104 F: 206/343-5691 CHECKEDJAJ AT FULL SCALE Planning/Building/Public Works Dept. 1 GI S T F R �� APPROVED: IF NOT ONE INCH SHEET: OF: ()NALE LNO. REVISION BY DATE APPR SCALE ACCORDINGLY T"E"S.C. DETAILS 6 13 R-381806