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Home My WebLink AboutR-397404J n I— rr O _ W l/LU V I..L rr r) W U 0 LU W 17 JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 8' MAX. POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED 2'S2" 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 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. 30-100SIEVESIZE(0.60-0.15MM) FORSILTFILM AOS (ASTM D4751) 50-100 SI EVE SIZE (0.30-0.15MM) FOROTHER FABRICS WATER PERMITTIVITY (ASTM D491) 0.02 SEC^-1 MINIMUM GRAB TENSILE STRENCHT (ASTM D4632) 180 LBS. MIN. 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 2H:1V 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. �1S�1NC'�OPS1 INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS 4"-8" QUARRY SPALLS GEOTEXTILE PORTION OF THE SW 1/4, SECTION 14, T. 23 N., R. 5 E., W.M. DRIVEWAYS SHALL BE PAVED TO THE EDGE OF RAW PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD 12" MIN. I HIGKNt3J ---------- �� PROVIDE FULL WIDTH OF NOTES INGRESS/EGRESS AREA 1. CONDITION OF USE 1.1. CONSTRUCTION ENTRANCE SHALL 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. GRAB TENSILE STREBNGTH(ASTM D4751) 200 PSI MIN. GRAB TENSILE ELONGATION (ASTM D4632) 30% MAX. MULLEN BURST STRENGTH (ASTM D3786-80A) 400 PSI MIN. AOS (ASTM D4751) 20-45 (U.S. STANDARD SIEVE SIZE) 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. HOG FUEL (WOOD BASED MULCH) MAY BE SUBSTITUTED FOR OR COMBINED WITH QUARRY SPALLS IN ARES THAT WILL BOT BE USED FOR PERMANENT ROADS. HOG FUEL IS NOT RECOMMENDED FOR ENTRANCE STABILIZATION IN URBAN AREAS. THE INSPECTOR MAY AT ANY TIME REQUIRE THE USE OF QUARRY SPALLS IF THE HOG FUEL IS NOT PREVENTING SEDIMENT FROM BEING TRACKED ONTO PAVEMENT OR IF THE HOG FUEL IS BEING CARRIED ONTO PAVEMENT. 2.2. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 2.3. WHENEVER POSSIBLE, THE ENTRANCE SHALL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE. 3. MAINTENANCE STANDARDS 3.1. QUARRY SPALLS SHALL BE ADDED IF THE PAD IS NO LONGER IN ACCORDANCE WITH THE SPECIFICATIONS. 3.2. IF THE ENTRANCE IS NOT PREVENTING SEDIMENT BEING TRACKED ONTO PAVEMENT, THEN ALTERNATIVE MEASURES TO KEEP THE STREETS FREE OF SEDIMENT SHALL BE USED. THIS MAY INCLUDE STREET SWEEPING, AN INCREASE IN THE DIMENSIONS OF THE ENTRANCE, OR THE INSTALLATION OF THE WHEEL WASH. IF WASHING IS USED, IT SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK, AND WASHED WATER SHALL DRAIN TO A SEDIMENT TRAP OR POND. 3.3. ANY SEDIMENT THAT IS TRACKED ONTO PAVEMENT SHALL BE REMOVED IMMEDIATELY BY SWEEPING. THE SEDIMENT COLLECTED BY SWEEPING SHALL BE REMOVED OR STABILIZED ON SITE. THE PAVEMENT SHALL NOT BE CLEANED BY WASHING DOWN THE STREET, EXCEPT WHEN SWEEPING IS INEFFECTIVE AND THERE IS A THREAT TO PUBLIC SAFETY. IF IT NECESSARY TO WASH THE STREETS, A SMALL SUMP MUST BE CONDUCTED. THE SEDIMENT WOULD THEN BE WASHED INTO THE SUMP WHERE IT CAN BE CONTROLLED AND DISCHARGED APPROPRIATELY. 3.4. ANY QUARRY SPALLS THAT ARE LOOSENED FROM THE PAD AND END UP ON THE ROADWAY SHALL BE REMOVED IMMEDIATELY. 3.5. IF VEHICLES ARE ENTERING OR EXITING THE SITES AT POINTS OTHER THAN THE CONSTRUCTION ENTRANCE(S), FENCING SHALL BE INSTALLED TO CONTROL TRAFFIC. 4'MN 1' OV ERFLOW DEPTH V DEPTH T- 4' ROCK OWPLOW CHANNEL IF OONSTRUCTEDBY EXCAVATION, 2'SE77.INGDEP9 9 TH 1r 1i SMAX 15 SEDIMENT STORAGE FILTER FABRIC FENCING 1' DEPTH 814' • 1.112' WASHED GRAVEL NOTE: MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM CROSS SECTION NTS OVERFLOW SPILLWAY VMIN WIDTH I ROCK MUST COMPLETELY COVER THE BOTTOM AND SIDES OF THE DITCH W MIN. �Doa�ooD��ao�� 24" MIN. 2:1 SLOPES /I NOTES 1. CONDITION OF USE 1.1. WERE CONCENTRATED RUNOFF FROM DISTURBED AREAS TO AND FROM PONDS OR TRAPS. 1.2. TO CONVEY RUNOFF INTERCEPTED FROM UNDISTURBED AREAS AROUND THE SITE TO A NON -EROSIVE DISCHARGE POINT. 2. MAINTENANCE STANDARDS 2.1. ANY SEDIMENT DEPOSITION OF MORE THAN 0.5 FEET SHALL BE REMOVED SO THAT THE CHANNEL IS RESTORED TO ITS ORIGINAL DESIGN CAPACITY. 2.2. THE CHECK DAMS SHALL BE EXAMINED FOR SIGNS OF SCOURING AND EROSION OF THE BED AND BANKS. IF SCOURING AND EROSION HAS OCCURRED, AFFECTED AREAS SHALL BE PROTECTED BY RIPRAP OR AN EROSION CONTROL BLANKET. STD. PLAN - 214.00 e STD. PLAN - 215.10 �Y p~�Y ° PUBLIC WORKS SILT FENCE rnSTD. PLAN — 2n.00 I! PUBLIC WORKS PUBLIC WORKS STABILIZED PUBLIC WORKS SEDIMENT TRAP + � +DEPARTMENT DEPARTMENT CONSTRUCTION ENTRANCE . +DEPARTMENT �,� $DEPARTMENT MARCH 2O08 MARCH 2O0B MARCH 2O08 �'N'ip STANDARD STRENGTH GRATE FILTER FABRIC IIIII IIIII CATCH BASIN NOTES 1. CONDITION OF USE 1.1. 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 CATCHBASIN WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. 1.2. MAY BE USED ANYWHERE AT THE APPLICANT'S DISCRETION TO PROTECT DRAINAGE SYSTEM. 1.3. THE CONTRIBUTING DRAINAGE AREA MOST NOT BE LARGER THAN 1 ACRE. 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. FILTER FABRIC IS ONLY ALLOWED WERE PONDING WILL NOT BE A TRAFFIC CONCERN AND WHERE SLOPE EROSION WILL NOT RESULT IF THE CURB IS OVERTOPPED BY PONDED WATER. 2.2. THE PLACEMENT OF A FILTER FABRIC UNDER GRATES IS GENERALLY PROHIBITED AND THE USE OF FILTER FABRIC OVER GRATES IS STRICTLY LIMITED AND DISCOURAGED. 3. MAINTENANCE STANDARDS 3.1. ANY ACCUMULATED SEDIMENT ON OR AROUND INLET PROTECTION SHALL BE REMOVED IMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED WITH WATER AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON SITE OR HAULED OFF SITE. (?) PUBLIC WORKS FILTER FABRIC PROTECTION STD. PLAN - 216.20 DEPARTMENT MARCH 2O08 Pacific Z_rj.; j_rj��_ej'_rj1 Destfjj Ir I C1+u1J 91391 lee ein y � Planning can .a1 la1 r , Dlipllne I I I' I � I I E � I ( I 5r I` I i b Ft. Temporary r- Chain Link Fenee I Crilf I r Root ZG11 .!r NO One sign per 50 feet. '. TRESSPA55ING (minimum of 2 signs)PROTECTED 10 Ft. TREES Figure 1. TREE PROTECTION FENCE DETAIL. DRIPLINE METHOD TREE PROTECTION FENCE NOTE: 1. ALL AREAS WITHIN THE REQUIRED FENCING SHALL BE COVERED COMPLETELY AND EVENLY WITH A MINIMUM OF THREE INCHES (3") OF BARK MUCH PRIOR TO INSTALLATION OF THE PROTECTIVE FENCING. 2. PRIOR TO ANY CONSTRUCTION ACTIVITIES THE CONTRACTOR SHALL ERECT AND MAINTAIN SIX-FOOT (6') HIGH CHAIN LINK TEMPORARY CONSTRUCTION FENCING AROUND THE DRIP LINES OF ALL RETAINED TREES OR AT THE DISTANCE SURROUNDING THE TREE EQUAL TO ONE AND ONE QUARTER FEET (1-1/4") FOR EVERY ONE INCH (1") OF TRUNK CALIPER. WHICHEVER IS GREATER OR ALONG THE PERIMETER OF A TREE PROTECTION TRACT. PLACARDS SHALL BE PLACED ON FENCING EVERY FIFTY FEET (50') INDICATING THE WORDS, (NO TRESPASSING - PROTECTED TREES,' OR ON EAT SIDE OF THE FENCING IF LESS THAN FIFTY FEET (50'). SITE ACCESS TO INDIVIDUALLY PROTECTED TREES OR GROUP OF TREES SHALL BE FENCED AND SIGNED. INDIVIDUAL TREES SHALL BE FENCED ON FOUR (4) SIDES. SUPERVISION SHALL BE PROVIDED WHENEVER EQUIPMENT OR TRUCKS ARE MOVING NEAR TREES. 3. NO FILLING, EXCAVATION, STORING EQUIPMENT, INSTALLATION OF IMPERVIOUS SURFACES, OR COMPACTION OF EARTH IN ANYWAY WITHIN THE AREA DEFINED BY THE THE DRIP LINE OF ANY TREE TO BE RETAINED. 4. A CERTIFIED ARBORIST OR LICENSED LANDSCAPE ARCHITECT SHALL BE RETAINED TO ENSURE TREES ARE PROTECTED FROM DEVELOPMENT ACTIVITIES AND/OR TO PRUNE BRANCHES AND ROOTS, FERTILIZE, AND WATER AS APPROPRIATE FOR ANY TREES AND GROUND COVER THAT ARE TO BE RETAINED. vIvlly 1 1ST ROUND REVISIONS PER CITY COMMENTS NO. I REVISION SU DRYCO DESMW. o LARSEN DRAWN, E. MARSHALL ACHEf3E� D, J. FENG BY DATE APPR APPw#mD- FENG 1 "=20' ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY CHECK DAMS SPACING AND CROSS SECTIONS SM. PLAN — 217.40 MARCH 2O08 �J C�Y/)� `1J N O O 'AO 1 T— a J — CM Co N O O I T- n R-397404 1¢ IN COMPLIANCE WITH CITY OF RENTON STANDARDS J SURFACE WATER UTILITY DEVELOPMENT ENGINEERING ' 0 rstraka 07/23/2018 rnair 07/30/2018 O LU DATE, HORIZONTAL.NAD 19671991 CITY OF CEDAR RIDGE SHORT PLAT Fl 88--88-2017 [;%Rl R E N TO N PAGE °C Nxap DRAWING W. DATUM Planning/Building/Public Works Dept. TEMPORARY EROSION CONTROL DETAILS 0 I LU SHEET, OP C04 C22