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Home My WebLink AboutTED4003197.5EROSION/SEDIMENTS TION CON TROL l�lO TS NW 1/4, NW 1/4, SEC. 16, TWP. 23 N., RGE. 5 E., W.M. (f} CL 0. w UJ Q zLLJ Q c� 3 0 o � a LL J UJ UJ 0 i 0 1. APPROVAL OF THIS EROSION/SEDIMENTA TION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (E. G. SIZE AND LOCH TION OF ROADS, PIPES, RESTR/CTORS, CHANNELS, RETEN T/ON FACILITIES, UTILITIES, ETC.). 2 THE /MPLEMENTA TION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES /S THE RESPONSIBILITY OF THE APPLICANT/CONTRACTOR UNTIL ALL CONSTRUCTION /S APPR0 VED. J. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED /N THE FIELD PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR FOR THE DURATION OF CONSTRUCT/ON. 4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED /N CONJUNCTION WITH ALL CLEARING AND GRADING A C T/ K TIES, AND /N SUCH A MANNER AS TO ENSURE THA T SEDIMENT LADEN WA TER DOES NO T ENTER THE DRA/NA GE SYSTEM OR VIOLATE APPLICABLE WATER STANDARDS. 5. THE ESC FA CILI TIES SHOWN ON THIS PLAN ARE THE MINIMUM REQU/REMEN TS FOR AN TIC/PA TED S/ TE CONDI TIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED (E. G. ADDITIONAL SUMPS, REL OCA TION OF D/TCHES AND SIL T FENCES, ETC.) AS NEEDED FOR UNEXPEC TED STORM EVEN IS 6. THE ESC FACILITIES SHALL BE INSPECTED DA IL Y BY THE APPL/CANT/CONIRA CTOR AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTION/NG. 7. ANY AREA STRIPPED OF VEGETA TION, INCLUDING ROADWA Y EMBANKMENTS, WHERE NO FURTHER WORK IS ANT/C/PA TED FOR A PER/OD OF 30 DA YS, SHALL BE /MMED/A TEL Y STABILIZED W/TH THE APPROVED ESC METHODS (E. G. SEEDING, MULCHING, NETTING, EROSION BLANKETS, ETC.). 8. AN Y AREA NEEDING ESC MEASURE, NO T REQUIRING /MMED/A TE A TIEN TION, SHALL BE ADDRESSED Wl THIN TH/R TY (30) DA YS. 9. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MIN/MUM OF ONCE A MONTH OR WITHIN 48 HOURS FOLLOWING A STORM EVENT 10. A T NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO ACCUMULA TE WITHIN A CA TCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT LADEN WA TER INTO THE DOWNSTREAM SYSTEM. 11. STABILIZED CONSTRUCTION ENTRANCES AND WASH PADS SHALL BE INSTALLED A T THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURA TION OF THE PROJECT. ADDITIONAL MEASURES MA Y BE REQUIRED TO ENSURE THA T ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT. (RCW 46.61.665). 12 DURING THE TIME PERIOD OF NOVEMBER 1 THROUGH MARCH 31, ALL PROJECT DISTURBED AREAS GREA TER THAN 5, 000 SQUARE FEET THAT ARE TO BE LEFT UNWORKED FOR MORE THAN 12 HOURS SHALL BE COVERED BY ONE OF THE FOLLOWING MEASURE, MULCH, SODDING, OR PLASTIC COVERING. 13. ANY PERMANENT RETENT/ON/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUA IF STORAGE CAPACITY. IF THE PERMANENT FACILITY /S TO FUNCTION UL T/MA TEL Y AS AN /NFIL IRA TION OR DISPERSION SYSTEM, THE FACILITY SHALL NOT BE USED AS A TEMPORARY SETTLING BASIN. NO UNDERGROUND DETENTION TANKS OR VAUL TS SHALL BE USED AS A TEMPORARY SETTLING BASIN. 14. WHERE SEEDING FOR TEMPORARY EROSION CONTROL IS REQUIRED, FAST GROWING GRASSES SHALL BE APPLIED A T AN APPROPRIA TE RA TE (E. G. ANNUAL OR PERENNIAL R YE APPLIED A T APPROX/MA TEL Y 80 POUNDS PER A CRE). 15. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MIN/MUM THICKNESS OF TWO INCHES. CHECKED FOR COMPLIANCE TO CITY STANDARDS r Date Date Date 11-0� Coff �zw� DESIGN 14711 N.E. 29th Place, # 101 Bellevue, Washington 98007 425.885.7877 Fax 425.885.7963 CORE Job No. 99121 MIES 12-04-04 90-7-04 FIL TER FABRIC MA TER/AL 60" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO A TTA TCH 2" BY 2" 14 GA. FABRIC TO WIRE. WIRE FABRIC OR EQU/ V. i `t W � �WZ� FILTER FABRIC MA TER/AL 2" BY 2" BY 14 GA. WIRE FABRIC OF EQUIV. --- z �o PROVIDE 3/4 " — 1.5" N WASHED GRA VEL BA CKFILL Q-) N IN TRENCH AND ON BOTH SIDES OF FIL TER FENCE FABRIC ON 6 MAX. 8 "MIN. THE SURFACE. 2" BY 4" WOOD POST BURY BOTTOM OF FABRIC AL T.- STEEL FENCE POSTS. MA TER/AL IN 8" BY 12" TRENCH J SEC TION Purpose ELEVA TION Conditions Where Proctice Applies To retain sediment from very small disturbed Be/ow disturbed areas subject to sheet and rill areas by construction of c temporary barrier erosion, where enough residue material is mode from residue materials cmilab/e from available for construction of such a barrier. clearing and grubbing the site. Note, does not rep/ace the need for a sediment trap or pond. FIL TER FA BRI C FENCE DE TA IL PROVIDE ADEQUATE STRAPPING POL YETHYLENE CAP PERFORA TED POL YETHYLENE DRAINAGE TUBING, DIAMETER MIN. 2" LARGER THAN DEWA !ERING ORIFICE. TUBING SHALL COMPL Y WITH ASTM F667 AND AASHTO M294. 0 VERFL OW RUNOFF WA TER w/ SEDIMENT - NO SCALE 12" CORRUGA TED METAL RISER WA7ERRGHT COUPLING i r- TACK WELD 6" MIN 18" MIN. CONCRETE BASE 21 RISER D/A. MIN. DEWA TER/NG ORIFICE, SCHED. 40 STEEL STUB 1 ~ DIAMETER SEE PLAN FOR OUTLET PIPE SIZE AL TFRNA77VEL Y, METAL STAKES AND WIRE MAYBE USED TO PREVENT FLOTATION. TEMPORA R Y SEDIMENT POND RISER DETAIL NO SCALE SUMP WIRE SCREEN FIL TERED WA TER 7" SUMP 2�%��/sumL CA TCH 5 SED/MENT BA SIN 1E 4 S/N GRA TE BURLAP FABRIC FIL TERED STAKES WA TER RUNOFF WA TER w/ SED/MEN T 6" SUMP 2' 1 5' R/W EXISTING GROUND 100' MIN. Z oo � R = 25'M/N. 0 Lr) 0 0 0 0 0 0 0 00 0 O O 4"— 8" QUARRY EX/STING DR/VEWA Y SPALL S, 12" THICK. RAMP OR SITE ACCESS (MIN.) ROAD DR/ VEWA Y CURB OR EDGE OF PA VEMEN T 1. Use 4" to 8" quarry soa//s or crushed rock for surfacing as shown. Material with fines is not acceptable. 2. The 100' minimum length shall be lengthened cs necessary to insure mctericl is not tracked into the public right—of—way. CONSTRUCTION ENTRANCE DETAIL NO SCALE R wk 13140 7 FIL TER FENCE BAFFLE (SEE DETAIL, SHEET CZ 31) STAKE UPRIGHT 6'M/N. EXIST. GROUND TOP OF BERM --- I' FREEBOARD EUrRGENCY SPILLWAY SEE DETAIL STANDP/PE OVERFLOW -----_ 0.5 OUTLET PIPE I.E.' OUTLET PIPE SECURE STANDP/PE IN CONCRETE PAD OR TO METAL Pt TE TO PREVENT FL 0TA 770N. (SEE RISER DETAIL, THIS SHEET) NO TE.- SEE PLAN FOR POND DIMENSIONS & ELEVATIONS FILTER FABRIC RETRIEVAL STRAP 0 E t V" OVERFLOW BYPASS FOR PEAK STORM VOLUMES RLTFRED WA7FR NOTES- 1. REMOVE CATCH BASIN GRA 77NG 2. CLEAN DIRT AND DEBRIS FROM GRA 77NG LEDGE. J LAY 17/E CATCH BASIN INSERT INSIDE THE BASIN. 4. REPLACE 7HE GRA 77NG, PINCHING THE INSERT FABRIC BETWEEN THE GRA 77NG AND THE CATCH BASIN FRAME. 5. CUT OFF THE EXCESS FABRIC Wl11 A BLADE KNIFE. A J TO 5 INCH WIDE S7R/P OF FABRIC SHOULD BE LEFT AROUND THE OUTSIDE OF lHE GRA TEING /F THE INSERT IS TO BE USED MORE THAN ONCE. AL TERNA TE 1 (BEFORE PA WN6 I AL TERNA TE 2 (BEFORE PA IWING) I AFTER PA WIVG CA TCH BASIN PROTECTION OPTIONS NO SCALE SEDIMEN TA TION POND DETAIL 2' NO SCALE J /I/-lLL ! LV // Lll VL INTERCEPTOR SWALE X-SECTION & ROCK CHECK DAM THE SUMP BEHIND THE ROCK CHECK DAM SHALL BE INSPECTED DA IL Y AND CLEANED TOP OF SWALE ^ WHEN COLLECTED DEBRIS EXCEEDS 0.5 FEET. L 1.5' FLOW L DEEP v / FLOW 0. 75' SWALE .\\�\\�\.\/.\ A NOTE- 1. ROCK SHALL BE 4 " MINUS QUARRY ROCK. 2. DISTANCE "L " SHALL BE SUFFICIENT THAT THE TOP OF THE DAM WILL NOT BE LOWER THAN THE TOE OF THE PREVIOUS DAM. ROCK CHECK DAM X- SECTION i ROCK CHECK DAM NO SCALE SURVEYED: SCALE HORIZONTAL' NAD 1983/1991 ,► STOR-HOUSE SELF STORAGE / / DESIGNED: NONE ��- C T Y OF 0 8 18 0 4 R H STEVENS EROSION CONTROL DETAILS PACE.FIELDOK: DRAWN: RENT 0 N PAGE J E HAYWOOD ONE INCH DATU V DRAWING NO: CHECKED: AT FULL SCALE Planning/Building/Public Works Dept. C2371 R H STEVENS IF NOT ONE INCH NO. REVISION BY DATE AP P R APPROVED: SCALE ACCORDINGLY SHEET: OF: R H STEVENS 3 9 reo - (to -tIq%