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Home My WebLink AboutR-382804n R M 1r U) U) W J m QIr 0 CL J 0 02 U Q H Z W 2W J W Y Q CL Z Q Li LL H ADAPTER SKIRT RETRIEVAL STRAP OVERFLOW GEOTEXTILE (TO BYPASS FABRIC PEAK STORM VOLUMES) 24•, CATCH BASIN SEDIMENT ACCUMULATION INLET SEDIMENT PROTECTION NOT TO SCALE GEOTEXTILE FOR SILT rF-1'4 PER WSDOT 9-33.2 (ORANC 2" X 2" BY 14 GA. WI FABRIC OR EQUIVALEP AFFIX TO PO PROVIDE 3/4" - 1 1/2" WASH GRAVEL BACKFILL IN TRENCH Al ON BOTH SIDES OF FILTER FEN, FABRIC ON THE SURFA 2" X 4" WOOD POST OR STEEL FENCE POST ORANGE FILTER FABRI MATERIAL 60" WIDE ROLLS USE RINGS TO ATTACH ATTACH TO WIRE FABRIC SIDE VIEW SILT FENCE NOT TO SCALE Know what's below, W Call before you dig. No. CATCH BASIN INLET PROTECTION NOTES AS APPLICABLE: 1. PLACE CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A SINGLE ROW AROUND THE PERIMETER OF THE INLET, SO THAT THE OPEN ENDS FACE OUTWARD, NOT UPWARD. THE ENDS OF ADJACENT BLOCKS SHALL ABUT. THE HEIGHT OF THE BARRIER CAN BE VARIED, DEPENDING ON DESIGN NEEDS, BY STACKING COMBINATIONS OF BLOCKS THAT ARE 4 INCHES, AND 12 INCHES WIDE. THE ROW OF BLOCKS SHALL BE AT LEAST 12 INCHES, BUT NO GREATER THAN 24 INCHES, HIGH. 2. PLACE WIRE MESH OVER THE OUTSIDE VERTICAL FACE (OPEN END) OF THE CONCRETE BLOCKS TO PREVENT STONE FROM BEING WASHED THROUGH THE BLOCKS. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1/2 INCH OPENINGS. 3. PILE STONE AGAINST THE THE WIRE MESH TO THE TOP OF THE BLOCKS. USE 3/4 TO 3 INCH GRAVEL. 4. PLACE WIRE MESH OVER DROP INLET SO THAT THE WIRE EXTENDS A MINIMUM OF 1 FOOT BEYOND EACH SIDE OF THE INLET STRUCTURE. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH OF 1/2 INCH OPENINGS. IF MORE THAN ONE STRIP OF MESH IS NECESSARY, OVERLAP THE STRIPS. 5. PLACE FILTER FABRIC OVER WIRE MESH. PLACE 3/4 INCH GRAVEL OVER WIRE MESH. THE DEPTH OF STONE SHALL BE AT LEAST 12 INCHES OVER THE ENTIRE INLET OPENING. EXTEND THE STONE BEYOND THE INLET OPENING AT LEAST 18 INCHES ON ALL SIDES. 6. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY FROM THE INLET AND CLEANED OR REPLACED. 7. IF THE CB GRATE BECOMES CLOGGED WITH SEDIMENT, CONTRACTOR SHALL BE RESPONSIBLE TO IMMEDIATELY CLEAN DEBRIS FROM GRATE. NOTES: 1. o N 171 EXISTING TYPE OF PROPORTIONS NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A GRADE I Jill SUPPORT POST WITH A MINIMUM SIX-INCH OVERLAP, AND BOTH ENDS PURITY 'M F.,1r, 2. nil = _ -111-111-111-1 i -iii III 1=1 I 1=I = I �_ I I III I I_ _ (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF SIX 90% FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 3011) N A TRENCH SHALL BE EXCAVATED, ROUGHLY EIGHT INCHES WIDE AND TWELVE 90% INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE 90% 6' MAX. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FRONT VIEW SILT FENCE NOT TO SCALE Know what's below, W Call before you dig. No. CATCH BASIN INLET PROTECTION NOTES AS APPLICABLE: 1. PLACE CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A SINGLE ROW AROUND THE PERIMETER OF THE INLET, SO THAT THE OPEN ENDS FACE OUTWARD, NOT UPWARD. THE ENDS OF ADJACENT BLOCKS SHALL ABUT. THE HEIGHT OF THE BARRIER CAN BE VARIED, DEPENDING ON DESIGN NEEDS, BY STACKING COMBINATIONS OF BLOCKS THAT ARE 4 INCHES, AND 12 INCHES WIDE. THE ROW OF BLOCKS SHALL BE AT LEAST 12 INCHES, BUT NO GREATER THAN 24 INCHES, HIGH. 2. PLACE WIRE MESH OVER THE OUTSIDE VERTICAL FACE (OPEN END) OF THE CONCRETE BLOCKS TO PREVENT STONE FROM BEING WASHED THROUGH THE BLOCKS. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1/2 INCH OPENINGS. 3. PILE STONE AGAINST THE THE WIRE MESH TO THE TOP OF THE BLOCKS. USE 3/4 TO 3 INCH GRAVEL. 4. PLACE WIRE MESH OVER DROP INLET SO THAT THE WIRE EXTENDS A MINIMUM OF 1 FOOT BEYOND EACH SIDE OF THE INLET STRUCTURE. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH OF 1/2 INCH OPENINGS. IF MORE THAN ONE STRIP OF MESH IS NECESSARY, OVERLAP THE STRIPS. 5. PLACE FILTER FABRIC OVER WIRE MESH. PLACE 3/4 INCH GRAVEL OVER WIRE MESH. THE DEPTH OF STONE SHALL BE AT LEAST 12 INCHES OVER THE ENTIRE INLET OPENING. EXTEND THE STONE BEYOND THE INLET OPENING AT LEAST 18 INCHES ON ALL SIDES. 6. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY FROM THE INLET AND CLEANED OR REPLACED. 7. IF THE CB GRATE BECOMES CLOGGED WITH SEDIMENT, CONTRACTOR SHALL BE RESPONSIBLE TO IMMEDIATELY CLEAN DEBRIS FROM GRATE. NOTES: 1. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO 171 THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE TYPE OF PROPORTIONS NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A PERCENT SUPPORT POST WITH A MINIMUM SIX-INCH OVERLAP, AND BOTH ENDS PURITY SECURELY FASTENED TO THE POST. 2. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS 90% (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF SIX 90% FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 3011) 3. A TRENCH SHALL BE EXCAVATED, ROUGHLY EIGHT INCHES WIDE AND TWELVE 90% INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE 90% FILTER FABRIC TO BE BURIED. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS STABILIZER TO BE APPLIED WITH SEED USING HEAVY-DUTY WIRE STAPLES AT LEAST ONE INCH LONG, TIE WIRES, OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF FOUR INCHES AND SHALL NOT EXTEND MORE THAN THIRTY SIX INCHES ABOVE THE ORIGINAL GROUND SURFACE. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND TWENTY INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN THIRTY SIX Y INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 2" X 2" BY 14 GA. 6. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING ARE WIRE FABRIC OR USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A EQUIVALENT CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS to WITH ALL OTHER PROVISIONS OF STANDARD NOTE (S) APPLYING. BURY BOTTOM OF 7. THE TRENCH SHALL BE BACKFILL WITH 3/4 INCH MINIMUM DIAMETER WASHED FILTER MATERIAL GRAVEL. IN 8"X12" TRENCH O 8. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN 2" X 4" WOOD POSTS, PERMANENTLY STABILIZED. STANDARD OR BETTER, 9. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH OR STEEL FENCE RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY POST REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. 10. CONTRIBUTING LENGTH TO FENCE SHALL NOT BE MORE THAN 100 FEET. 11. DO NOT INSTALL BELOW AN OUTLET PIPE OR WEIR. 12. DO NOT DRIVE OVER OR FILL OVER FILTER FABRIC FENCE. REVISION SURVEYED: DESS: A. BRAUN DRAWN: F. KATONA W. FIERST BY DATE APPR o- S. COMFORT BID SET HYDROSEEDING NOTES 1. HYDROSEEDING SHALL BE APPLIED TO ALL DISTURBED NON -PAVED SURFACES. z 2. HYDROSEEDING TO BE THE FOLLOWING MIXTURE: 171 n TYPE OF PROPORTIONS PERCENT PERCENT MIXTURE BY WEIGHT PURITY GERMINATION PERENNIAL RYE GRASS 40% 90% 90% CREEPING RED FESCUE 40% 90% 90% CREEPING RYE GRASS 10% 95% 90% HIGHLAND BENT GRASS 10% 90% 90% 3. APPLICATION TO BE 100 LBS/ACRE. C 4. 500 LBS/ACRE 10-20-20 FERTILIZER, 2000 LBS/ACRE MULCH AND 40 LBS/ACRE SOIL STABILIZER TO BE APPLIED WITH SEED MIXTURE. 0 c MULCHING NOTES 1. MULCH MATERIALS USED SHALL BE HAY OR STRAW, AND SHALL BE APPLIED AT THE RATE OF 2 TONS/ACRE. 2. MULCHES SHALL BE APPLIED IN ALL AREAS WITH EXPOSED SLOPES GREATER THAN 2:1. 3. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON. 4. ALL AREAS NEEDING MULCH SHALL BE COVERED BY NOVEMBER 1. EROSION CONTROL NOTES 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS, SURFACE WATER UTILITY, WASTE WATER UTILITY, WATER UTILITY, AND TRANSPORTATION PLANS. 2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER. 3. THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION IN ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. 5. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/OR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL EROSION AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ONSITE EROSION HAS PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT, AND ADDITIONS TO EROSION/SEDIMENTATION CONTROL SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITEE. 6. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE PERMITEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES WILL BE NECESSARY TO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE PERMITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 7. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE, NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES. 8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1 THROUGH MARCH 30) OR SEVEN DAYS DURING THE DRY SEASON (APRIL 1 THROUGH SEPTEMBER 30) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). 9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES CLEARING BETWEEN OCTOBER 1 AND MARCH 30 INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY THROUGH AN ADJUSTMENT PROCESS. 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL. 11. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN DAYS. 12. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. 13. AT NO TIME SHALL MORE THAN 1 FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 14. DURING THE TIME PERIOD OF OCTOBER 1 THROUGH MARCH 30, ALL PROJECT DISTRIBUTED SOIL AREAS GREATER, THAT ARE TO BE LEFT UNWORKED FOR MORE THAN 12 HOURS, SHALL BE COVERED BY MULCH, SODDING, OR PLASTIC COVERING. 15. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST 3 FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW. R-381804 Checked for Complian a to City Standards Z x X100011 v°ZONAL E�'v Mao NOWE T A C O M A - SEATTLE • SPOKANE • TRI -CITIES ALMIAIN OF M MMM SIAL MMT X sm MoN s��u E PI�I('� " OF 11011111011T11011111011To ff. WT IMoi2215 North 30th Street, Suite 300 Tacoma, WA 98400111111111112!1111VMMw W DOCu1BIT IS IN MY POR of PMW MM III 1IU R= NO IS Wr TO K USM IN ffW NO& OR 253.383.2422 TEL 253.383.2572 FAX www.ahbi.com WEB ADDI= M IMT FWW OR FOR MY OBER PRINICT. SCAM: IJAM AS NOTED' �� CITY OF TIFFANY PARK ELEMENTARY SCHOOL 20 APRIL 2015 ,�: NAD ,� ,�, PORTABLES � °°" _ RENTON I OW INW DATUM RENTON SCHOOL DISTRICT DRQ NO. AT FULL SCALEPlanning/Building/Public Works Dept. IF NOT C4.0 SCALE ACOORMMIMY NOTES AND DETAILS �: OR 4 7 I I-ININININIAIA • z 171 n z r C Z n 7 m n C 0 w 171 -n Z C n 0 c Y to O r �N O td D -n 0 C n 0 c