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Home My WebLink AboutR-361327S R z 0 V a i f M a m �8 W) �U gWWQ gC�3 <_jmp a iq U�t11J Z jH Es Nj N N r n • O wz Y O C) 3 �z n E-i W a' L) rn 0 m rn c c m Sa 3 s 3 4' it I 5B g `w X x 0 Z Y n SWALE P CHECK A SPACING Z U 150 d 1 100 > 107 zz 0 N °u u. N a X Q z W °n uC M E d N p � M N N O � \ rca _ I Y x x x x m U U U U U i D s N n I � o � I N N y� � W / W d N O z pp o o N a 4� Q 0 m z 0 N 0 z CITY OF RENTON EROSION AND SEDNIEN T CONTROL NOTES 1. CLEARING LIMITS: A PRIOR TO ANY SITE CLEARING OF GRADING, AREAS TO REMAIN UNDISTURBED DURING PROJECT CONSTRUCTION SHALL BE DELINEATED. AT A MINIMUM, CLEARING LIMIT DELINEATION FLAGGING SHALL BE PROVIDED AT THE EDGES OF ALL SENSITIVE AREA BUFFERS. 2. KEEP THE GROUND COVERED: A. MINIMIZE THE AMOUNT OF EXISTING VEGETATION THAT YOU MUST DISTURB FOR CONSTRUCTION. KEEP OFF SENSITIVE AREAS AND THEIR BUFFERS. B. ALL DISTURBED AREAS SHALL BE COVERED AND /OR MULCHED WITHIN 12 HOURS. IF THEY ARE TO REMAIN UNWORKED FOR MORE THAN 7 GOYS FROM MAY 1ST TO SEPTEMBER 30TH. DURING THE MONTHS OF OCTOBER 1ST THROUGH APRIL 30TH, DISTURBED AREAS MUST BE COVERED OR MULCHED IF LEFT UNWORKED WITHIN 2 DAYS C. ACCEPTED MULCH MATERIAL INCLUDES STRAW, WOOD FIBER AND CELLULOSE. D. AREAS NOT BEING WORKED FOR 30 DAYS OR MORE SHALL BE VEGETATED UNLESS THE CITY DETERMIN ES THAT WINTER WEATHER MAKES VEGETATION T STILL BE INFEASIBLE. T IF THIS Z THE CASE, H NS STILL BE MORE PERMANENTLY STABILIZED, USING METHODS SUCH AS BONDED FIBER MATRIX OR OTHER MORE STABLE BMP'S. E. SLOPES AND STOCKPILES 3H:1V OR STEEPER AND MORE THAN 10 FEET OF VE RTI CAL RELIEF SHALL BE COVERED IF THEY ARE UNWORKED FOR MORE THAN 12 HOURS. F. ALL AREAS NOT BEING WORKED PRIOR TO OCTOBER 1, AND ARE BEING SEEDED, SHALL BE SEEDED BY SEPTEMBER 23. MULCHING IS REQUIRED TO PROTECT ALL SEEDED AREAS UNTIL AN ADEQUATE GROWTH IS ESTABLISHED. G. AREAS THAT ARE BEING HYDRO SEEDED SHALL HAVE A UCKIFIER MIXED INTO THE HYDRO SEED TO HELP STABILIZE MIXTURE ONTO THE SOIL. H. ENOUGH COVER MATERIAL TO SUFFICIENTLY PROTECT ALL DISTURBED AREAS SHALL BE STOCKPILED ON THE SITE AT THE BEGINNING OF THE WET SEASON. 3. DUST CONTROL A DUST IS TO BE CONTROLLED ON THE CONSTRUCTION SITE. B. WATER TRUCK WILL BE USED TO CONTROL DUST ON DIRT /GRADED AREAS ONLY. C. NO SITE RUN OFF IS TO BE GENERATED BY OVER USE OF WATERING. D. CONTROLLING DUST ON PAVED ROADWAYS WILL BE DONE BY THE USE OF A SWEEPER WITH WATER -JET SPRAYERS. NO RUN OFF FROM SPRAYERS SHALL REACH THE CATCH BASINS. 4. PERIMETER PROTECTION: A PERIMETER PROTECTION TO FILTER SEDIMENT FOR SHEETWASH SHALL BE LOCATED DOWNSLOPE OF ALL DISTURBED AREAS AND PROPERLY INSTALLED PRIOR TO UPSLOPE GRADING. B. 50 LINEAR FEET OF SILT FENCE PER ACRE AND THE NECESSARY STAKES TO HOLD THE FENCE IN PLACE SHAD. BE STORED ON SITE. G/ H SWALE P CHECK A SPACING Z U 150 5% - 107 1 100 > 107 zz 0 N N X Q z W N z 'n C14 CN 0 z 0)00 tow_ N n a 3M7 1 I Zw 11 an z 111 _� Z 1 N N c' Qy�N 4 �aA s 60 s c � n A W (CONTINUED) EROSION AND SEDIMENT CONTROL NOTES 5. TRAFFIC AREA STABILIZATION: A UNSURFACED DRIVEWAY ENTRANCES, ACCESS ROADS AND PARKING AREAS USED BY CONSTRUCTION TRAFFIC WILL BE STABILIZED TO MINIMIZE EROSION AND PREVENT TRACKING MUD. B. STABILIZED CONSTRUCTION ENTRANCES WILL BE INSTALLED AS THE FIRST STEP OF CLEARING AND GRADING. C. CONSTRUCTION ENTRANCES WILL BE SET UP SO THAT ALL TRAFFIC LEAVING A JOB SITE IS REQUIRED TO TRAVEL THE ENTIRE LENGTH OF ENTRANCE. D. ROADS AND PARKING AREAS WILL BE STABILIZED IMMEDIATELY AFTER THE INITIAL GRADING. E. CONSTRUCTION ENTRANCES WILL 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. F. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT WILL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON -SITE. G. IF NON- VACTOR TYPE SWEEPERS ARE USED, THE DEPOSITION OF THESE SWEEPERS MUST BE REMOVED FROM SIDEWALKS AND GUTTERS. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON -SITE. H. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING STREETS. 6. SEDIMENT RETENTION: A SEDIMENT RETENTION IS REQUIRED UNLESS NO OFF -SITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. B. SEDIMENT RETENTION FACILITIES WILL BE INSTALLED BEFORE GRADING. C. IF SEDIMENT RETENTION FACILITIES NEED TO BE REMOVED FOR GRADING, ADDITIONAL PONDS /TRAPS /SYSTEMS TO ACCOMMODATE STORAGE CAPACITY NEED 70 BE INSTALLED ON SITE. THIS WILL BE DONE PRIOR TO REMOVAL OF EXISTING FACILITY. 7. SURFACE WATER CONTROL: A SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFF -SITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. 8. SENSITIVE AREA RESTRICTIONS: A PHASING AND MORE CONSERVATIVE BEST MANAGEMENT PRACTICES (BMP'S) MUST BE EVALUATED FOR CONSTRUCTION ACTIVITIES NEAR SURFACE WATERS.. 9. MAINTENANCE REQUIREMENTS: A LARGE PROJECTS WITHIN IN SENSITIVE AREAS MAY BE REQUIRED BY THE CITY TO HAVE A DESIGNATED ESC SUPERVISOR WHO WILL BE RESPONSIBLE FOR ESC REVIEW, MAINTENANCE AND COMPLIANCE. B. ESC WILL BE INSPECTED A MINIMUM OF ONCE A WEEK DURING THE WET SEASON AND WITHIN 24 HOURS OF SIGNIFICANT STORMS (.5 INCHES /24 HOUR, OR WHERE RUN -OFF IS GENERATED). C. THE ESC SUPERVISOR MUST BE AVAILABLE. 24 HOURS. FOR RAPID RESPONSE TO ESC PROBLEMS AND EMERGENCIES. D. A 24 -HOUR PHONE NUMBER FOR THE ESC SUPERVISOR WILL BE POSTED IN A CLEARLY VISIBLE LOCATION ON THE PROJECT SITE. 10. FINAL STABILIZATION: PRIOR TO FINAL CONSTRUCTION APPROVAL, THE FOLLOWING CONDITIONS MUST BE MET: A ALL DISTURBED AREAS OF THE SITE WILL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED: B. STRUCTURAL MEASURES SUCH AS SILT FENCE, SLOPE DRAINS, ETC. WILL BE REMOVED FROM SITE: C. ALL PERMANENT SURFACE WATER FACIUTIES INCLUDING CATCH BASINS, PIPES, ETC. WILL BE CLEANED; D. ANY OFF -SITE CATCH BASINS THAT REQUIRED PROTECTION WILL ALSO BE CLEANED: AND E. IF ONLY THE INFRASTRUCTURE OF THE SITE HAS BEEN DEVELOPED SUCH AS SHORT PLATS AND SUBDIVISIONS, WITH BUILDING CONSTRUCTION TO OCCUR UNDER A DIFFERENT PERMIT, THEN THE SENSITIVE AREA BUFFERS, TRACTS, AND SETBACKS WILL BE CLEARLY MARKED. CITY OF RENTON. DEVELOPMENT SERVICES STAFF IS AVAILABLE TO ANSWER ANY QUESTIONS YOU MAY HAVE ABOUT EROSION AND SEDIMENT CONTROL AND WET SEASON STABILIZATION MEASURES FOR PERMITTED ACTIVITIES IN THE CITY OF RENTON. PLEASE CALL 425- 430 -7300. NOTES. 1. CONTRACTORS RESPONSIBILITY FOR MAINTAINING & CLEANING THE APPROACH ON A REGULAR 2. IF DIRECTED BY THE CITY ADDITIONAL QUARRY SPALLS t �E 3. THHE CONSTRUUCTTIION APPROACH MUST BE LOCATED AT THE PERMANENT APPROACH LOCATION. P 0 O 'O 'tzrp R= 25' MIN, 4 " -6" QUARRY SPALLS TEMPORARY STABILIZED CONSTRUCTION ENTRANCE NOT TO SCALE TEMPORARY EROSION AND SEDIMENTATION CONTROL NOTES AND DETAILS FOR %w*X2 A A PORTION OF THE SE 1/4 OF SECTION 14, TOWNSHIP 23 N., RANGE 5 E., W.M. CITY OF RENTON KING COUNTY, WASHINGTON EROSION CONTROL 'WET SEASOW NOTES FILTER FABRIC FENCE INSTALLATION NOTES FILTER FABRIC MATERIAL IN CONTINUOUS ROLLS; USE STAPLES OR WIRE RINGS 1. ANY SITE WITH EXPOSED SOILS DURING THE WET SEASON (OCTOBER 1. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO ATTATCH FABRIC TO WIRE 1 TO APRIL 30) SHALL BE SUBJECT TO THE SPECIAL PROVISIONS TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN BELOW. THESE SPECIAL PROVISIONS ARE REQUIRED IN ADDITION JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPUCED TOGETHER WIRE MESH SUPPORT FENCE TO THE STANDARD ESC COVER MEASURES. THESE PROVISIONS ONLY AT A SUPPORT POST, WITH A MINIMUM 6 -INCH OVERLAP, AND FOR SLIT FILM FABRICS INCLUDE COVERING ANY NEWLY SEEDED AREAS WITH MULCH AND BOTH ENDS SECURELY FASTENED TO THE POST IDENTIFYING AND SEEDING AS MUCH DISTURBED AREA AS POSSIBLE 2 THE FILTER FABRIC FENCE SHALL BE INSTALLED 70 FOLLOW THE PRIOR TO SEPTEMBER 23 IN ORDER TO PROVIDE GRASS COVER FOR io THE WET SEASON. CONTOURS (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A WIRE MESH SUPPORT FENCE MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND FOR SLIT FILM FABRICS 2. THE ALLOWED TIME THAT A DISTURBED AREA CAN REMAIN UNWDRKED (MINIMUM OF 30 INCHES) WITHOUT COVER MEASURES IS REDUCED TO TWO (2) DAYS, RATHER 3. A TRENCH SHALL BE EXCAVATED, ROUGHLY 8 INCHES WIDE AND 12 FILTER FABRIC MATERIAL EVE THAN SEVEN 7 DAYS. () INCHES DEEP, E AND ADJACENT TO THE WOOD S7 70 ALLOW THE FILTER FABRIC RIC TO TO POST BE BURIED 3. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE � PROTECTED IF UNWORKED FOR MORE THAN 12 HOURS. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH 2 "x2 "x14 GA. WIRE c' SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE FABRIC OR EQUIV. o 4. COVER MATERIALS DISTURBED (PLASTIC, MATTING, ETC.) SUFFICIENT TO OF THE POSTS USING HEAVY DUTY WIRE STAPLES AT LEAST 1 INCH f n / / R I TURBED AREAS SHALL BE STOCKPILED ON SITE. \ \ \ \ \ COVE ALL DS LE LONG. TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE ii /i?\ /i.\\/\0\,, 5. ALL AREAS THAT ARE TO BE UNWORKED DURING THE WET SEASON TRENCH A MINIMUM OF 1 INCHES AND SHALL NOT EXTEND MORE THAN PROVIDE WASHED GRAVEL BACKFILL BURY BOTTOM OF FILSHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE OR COMPACTED NATIVE SOIL AS MATERIAL IN 8 "x12" T SEASON. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED DIRECTED BY LOCAL GOVERNMENT 6. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS. TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED BURY BOTTOM OF FILTER 8" MIN. INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 35 MATERIAL IN 8 "02" TRENCH 6' MAX 7. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL PER ACRE OF DISTURBANCE MUST BE STOCKPILED ON SITE. NOT BE STAPLED TO EXISTING TREES 2 "x2" WOOD POSTS, STANDARD 6. WHEN EXTRA STRENGTH FILTER FABRIC AND CLOSE POST SPACING ARE OR BETTER, OR EQUIVALENT B. CONSTRUCTION ROAD AND PARKING LOT STABIUZATION ARE USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A REQUIRED FOR ALL SITES UNLESS THE SITE IS UNDERLAIN BY CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS 2 "x2" WOOD POSTS, STANDARD COURSE- GRAINED SOIL. WITH ALL OTHER PROVISIONS OF STANDARD NOTE 5 APPLYING PLACE ROCK CROWN OR BETTER, OR EQUIVALENT 9. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE 7 THHEEH TRENCH SHALL BE BACKFILLED WITH 3/4 -INCH MINIMUM DIAMETER - IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. PROPERLY INSTALLED SILT FENCING IS MANDATORY ALONG THE DDWNSLOPE OF ALL DISTURBED AREAS OF THE SITE. PERIMETER PROTECTION g, FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED 1'MIN. DISCHARGE STANDARD DEPT O FILTERS RUNOFF AND REDUCES THE AMOUNT OF SEDIMENT THAT MAY PIPE FILTER FABRIC FENCE DETAIL LAVE THE SITE. THEIR USEFUL PURPOSE. BUT NOT BEFORE THE THEY UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED 10. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE 9. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH & NOT TO SCALE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY FILTER FABRIC REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY LINER UNDER CONSTRUCTION ROCK THICKNESS =1' MIN. 11. P AND MORE CONSERVATIVE BM MUST BE EVALUATED FOR CONSTRUCTION ACTIVITY W IY NEAR SURFACE WATERS. ROCK AS SHOWN ON PLAN) RIP -RAP PAD 12. ANY RUNOFF GENERATED BY DEWATERING SHALL BE TREATED THROUGH N.T.S. CONSTRUCTION OF A SEDIMENT TRAP WHEN THERE IS SUFFICIENT SPACE OR BY RELEASING THE WATER TO A WELL- VEGETATED. GENTLY SLOPING AREA. SINCE PUMPS ARE USED FOR DEWATERING. IT MAY BE POSSIBLE TO PUMP THE SEDIMENT -LADEN WATER WELL AWAY FROM THE SURFACE WATER SO THAT VEGETATION CAN BE MORE MAINTENANCE STANDARDS EFFECTIVELY UTILIZED FOR TREATMENT. A STRAW BALE FILTER 1. SEDIMENT SHALL BE REMOVED SHALL BE PLACED AROUND THE DISCHARGE FROM THE DEWATERING FROM THE POND WHEN IT REACHES PUMP. IF THERE IS NOT SPACE FOR A SEDIMENT TRAP OR 25 FEET OF SUITABLE VEGETATION. OTHER FILTRATION METHODS SHALL BE 1 FOOT IN DEPTH. REQUIRED. 2. ANY DAMAGE TO THE POND EMBANKMENTS OR SLOPES SHALL 13. THE FREQUENCY OF MAINTENANCE REVIEW SHOULD BE INCREASED BE REPAIRED. FROM WEEKLY TO DAILY WHERE WARRANTED. PROVIDE 24" DIAMETER ADEQUATE CORRUGATED STRAPPING METAL RISER POLYETHYLENE CAP TOP OF RISER EL. =438.0 PERFORATED POLYETHYLENE DRAINAGE TUBING, 12" DIA 2 MIN DEWATERING ORIFICE TUBING SHALL COMPLY TACK � SCHEDULE 40 STEEL WITH ASTM 5667 & ASHTO M294 WELD STUB MIN - 4 1/16" DIA WATERTIGHT PER CALCULATIONS COUPLING z_ a v - CONCRETE BASE ALTERNATIVELY, METAL STAKES & WIRE MAY BE �. 2X RISER DIA MIN _1 USED TO PREVENT FLOTATION 1.0' MIN. 3' 3' SWALE ROCK CHECK FLOWLINE DAM 0.5' MIN. KEY ROCK INTO SWALE 0.25' (MIN.) SWALE X-SECTION AT ROCK CHECK DAM KEY ROCK INTO SWALE MIN. 0.25' SUMP BEHIND ROCK CHECK DAM 5' SHALL BE INSPECTED DAILY, AND CLEANED WHEN COLLECTED DEBRIS EXCEEDS 1/2 OF ITS DEPTH NOTE: ROCK SHALL BE 4" MINUS QUARRY ROCK. b i ROCK DAM DAM XM TEMPORARY 'V" DITCH AND ROCK CHECK DAM DETAILS NOT TO SCALE R- 361321 SEDIMENT POND RISER NOT TO SCALE DEPTH =0.5' MAX 6" MIN. DEPTH, 2 " -6" DIA QUARRY SPALLS OVERFLOW SPILLWAY DETAIL NOT TO SCALE PER AS -BUILT REVISIONS 5 -31 -2013 CHECKED FOR COMPLIANCE TO CITY STANDARDS 0 �8f, R -3(o -TOP OF POND EL= 440.0 MIN TOP OF ROCK EL.= 439.0 MIN BOTTOM OF ROCK EL= 438.5 RECORD SET CITY OF RENTON MEPAFRTMENT OF= PUBLIC WORKS DATE O/ 1 D/ I I IFI E NO. LUA 0£- CHECKED AS I SCALE IFIELD BOCK - APPROVED wa w aacrm s 8/ C5 OF vaa¢ ffT CID T Z O U4 m SWALE P CHECK A SPACING 07. - 59, 1 150 5% - 107 1 100 > 107 0 3' 3' SWALE ROCK CHECK FLOWLINE DAM 0.5' MIN. KEY ROCK INTO SWALE 0.25' (MIN.) SWALE X-SECTION AT ROCK CHECK DAM KEY ROCK INTO SWALE MIN. 0.25' SUMP BEHIND ROCK CHECK DAM 5' SHALL BE INSPECTED DAILY, AND CLEANED WHEN COLLECTED DEBRIS EXCEEDS 1/2 OF ITS DEPTH NOTE: ROCK SHALL BE 4" MINUS QUARRY ROCK. b i ROCK DAM DAM XM TEMPORARY 'V" DITCH AND ROCK CHECK DAM DETAILS NOT TO SCALE R- 361321 SEDIMENT POND RISER NOT TO SCALE DEPTH =0.5' MAX 6" MIN. DEPTH, 2 " -6" DIA QUARRY SPALLS OVERFLOW SPILLWAY DETAIL NOT TO SCALE PER AS -BUILT REVISIONS 5 -31 -2013 CHECKED FOR COMPLIANCE TO CITY STANDARDS 0 �8f, R -3(o -TOP OF POND EL= 440.0 MIN TOP OF ROCK EL.= 439.0 MIN BOTTOM OF ROCK EL= 438.5 RECORD SET CITY OF RENTON MEPAFRTMENT OF= PUBLIC WORKS DATE O/ 1 D/ I I IFI E NO. LUA 0£- CHECKED AS I SCALE IFIELD BOCK - APPROVED wa w aacrm s 8/ C5 OF vaa¢ ffT CID T Z O U4 m