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Home My WebLink AboutR-393505TU-) V,'�r'J� `- J C) 1- I W I- J 4' PAIN T DEPTH 2"- 4" ROCK v 3 2'SETTLI NG DEPTH 1.i' SEDIMENT STORAGE - T DEPTH 314' - 1-112" WASHED GRAVEL CROSS SECTION NTS 1'OVERFLOW DEPTH OUTFLOW CHANNEL IF �- 9 1 1 5TAAX CONSTRUCTED BY EXCAVATION. FILTER FABRIC FENCING 1.5' SEDIMENT STORAGE 2' SETTING DEPTH & V DEPTH OF 2"-4' ROCK, VD EPTH OF 14"-112' WASHED GRAVEL. NOTE: MAY BE CONSTRUCTED BY EXCAVATION OR BY BUILDING A BERM - PUBLIC WORKS SEDIMENT TRAP STD. PLAN 211.00 DEPARTMENT •;�,� IvLARCII 2008 STANDARD STRENGTH GRATE FILTER FABRIC - II IIII CATCH BASIN -J NOTES 1. CONDITION OF USE 1-1- SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNS LOPE 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 PONDER 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 ORAROUND 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. 'f YSTD PITRI,IC W'ORWS FILTER FABRIC PROTECTION 'PLAN - 218'20 DEPARTMENT MARCH 2O06 JOINTS IN FILTER FABRICSHALL BE SPU CEO AT POSTS. USE STAPLES, WIRE RINGS, OR EOU IVAL ENT TO ATTACH FABRIC TO POSTS. R' MAX. u � POST SPACING MAY BE INCREASE❑ TOW IF WIRE BACKING IS USE❑ 2'Lx2" BY 14 Ga. WIRE OR EQUIVALENT. IF 5TAN DARD STRENGTH FABRIC USED FILTER FABRIC �- MINIMUM 4"x4" TRENCH BAG KFILL TRENCH WITH ' NATIVE SOIL 2"x4' WOOD POSTS. STEEL FENCE POSTS, RE BAR, 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. _C�IM SI EVE SIZE(0-6CrC. 19 mrNjj FC R 31 LT F I LM AO5 (ASTM 0.751I 50 1W SIEVE SIZE (0-30 C.15 VArvl) FCR QTH ER FABRICS WATFR PFRIVITTIVITY I. STM D411; fl. ll75FC.'•-1 MI N I MI PM 5KAB I ENSILE S I R EN C H I WI I M 17L6321 18C LBS. M1 N. FOR EXTRA STREN GH F.AS RI C .0 LBS. h11N-FOR STANDARD STRENGHT FABRIC GRAB TEN S I LE ELO N GATION •;ASTM D4632I 30',ti MAX. I II TR VInI ATF RESISTANT �"TI41 f#.WSi 717?f 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:1 V 2.4. IF A TYPICAL SILT FENCE IS USED, THE STANDARD 4X4 TRENCH MAY NOT BE REDUCED AS LONG AS THE BOTTOM S 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 5 INCHES HIGH. 3.5. IF THE FILTER FABRIC (GEOTEXTILE) HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. PUBLIC WORKS SILT FENCE STD. PLAN - 214.00 DEPARTMENT MARCH 2O08 Q LEVEL BOTTOM 'a 1' MIN - 2' M1N- SWALE SPACING DEPENDS ON SLOPE GRADIENT 2:1 MAX. SLOPE NOTES 1. CONDITION OF USE 1.1. REQUIREDAT: 1.1.1. THE TOP OF ALL SLOPES IN EXCESS OF 3H:1 V AND WITH MORE THAN 20 FEET OF VERTICAL RELIEF. 1-1-2- AT INTERVALS ON ANY SLOPES THAT EXCEEDS THE DIMENSIONS SPECIFIED BELLOW - AVERAGE SLOPE SLOPE PERCENT FLOW PATH LENGTH 20H:1V 3-5% 300 FEET 10TO20 H:1V 5-10% 200FEET (4TO10)H:1V 10-25°% 100FEET (2TO4)H:IV 25_W% 50FEET 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. FOR SLOPES STEEPER THAN 2H:1 V WITH MORE THAN 10 FEET OF VERTICAL RELIEF, BENCHES MAY BE CONSTRUCTED OR CLOSER SPACED INTERCEPTOR SWALES MAY BE USED. THE DESIRE MEASURE MOST BE DESIGNED BY AN ENGINEER TO EFFECTIVELY INTERCEPT THE HIGH VELOCITY RUNOFF TO A SEDIMENT POND OR TRAP. 2-2. CONSTRUCTION TRAFFIC OVER TEMPORARY $WALES SHALL BE MINIMIZED- 3. MAINTENANCE STANDARDS 3.1. DAMAGE RESULTING FROM RUNOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY. 3-2- F THE FACILITY DO NOT REGULARLY RETAIN STORM RUNOFF, THE CAPACITY ANDIOR FREQUENCY OF THE SWALES SHALL BE NCREASED- 1� STD. PLAN - 217.10: �7 PUBLIC WORDS INTERCEPTOR SWALE DEPARTMENT MARCH 200B 1 REWSED DRIVEWAYS, SSMH 2 & SELECT SERVICES 2 ADJUST LOTS 6-6 3 UPDA TED CURB RAMP PER CITY COMMENTS 4 WATER UPDATES PER FIELD CONDITIONS 5 REWS1ONS TO EAST END OF ALLEY (SW 3RD CT) NO. REVISION m DRIVEWAYS SHALL BE PAVED TO THE EDGE S igOpCON OF R-O-W PRIOR TO INSTALLATION OF THE STRUCTIO N ENTRANCE TO AVOID DAMAG NG OF THE ROADT AY -� IT IS RECONIPA EN D ED THAT THE R = 25' MIN. ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD r� �Y INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER CITY ROAD STANDARDS 4"-B' QUARRY SPALLS GEOTEXTILE 12' MIN. THICKNESS - 4 _1 �� PROVIDE FULL WIDTH OF NOTES JI IN GRES5;'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- GRABTENSILESTREBNGTII(ASTMD4751) 20DPSI MIN. GRAB TENSILE ELONGATION (ASTM D46321 30K MAX. MULLEN BURSTSTRENGTH (ASTM ❑37E6-WA) 400 PSI MIN - ADS (ASTM 34751} 20-45 (U.S. STANDARD SIEVE 51ZE) 2. DESIGN AND INSTALLATION SPECIFICATIONS 2.1. HOG FUEL (WOOD BASED MULCH) MAYBE 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 $PALLS 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. PUHLIC 1VORKS STABILIZED STD. PLAN - 215.10 + '+ DEPARTMENT CONSTRUCTION ENTRANCE `f0 MARCH 2O08 2:1 SLOPES I i 1 l I ROOK MUST COMPLETELY GOVER THE L = THE DISTANCE SUCH THAT POINTS A AND B ARE OF EQUAL ELEVATION B L _r 2"-4" ROCK 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 0.3 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- 1� J PU13LIC WORKS CHECK DAMS SPACING AND STD' FLAN - 217.40 DEPARTMENT CROSS SECTIONS ,q f MARCH 2O08 LMT 412118 S'RNSY MOH EVENS, PLS � AS NOTED LMT 5122118 DESIGNm: SHAWN COOPER LMT 6115118 SDC 7110118 SHAWN COOPER ONE INCH AT FIlf L may, F IF NOT 0 NCH SCALE 1CCOMNMY CH 8/10/18 CHECI MI BREfr K. PUDMS, PE BY DATE APPR APPwluo: BREF K. PUDI51'5, PE POLYETHYLENE CAP PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER MIN. 2' LARGER THAN DEWATERING ORIFICE. TUBING SHALL OOMPLY WITH ASTM F667 AND AASHTO M294. PROVIDE ADEQUATE STRAPPING CORRUGATED METAL RISER WATERTIGHT COUPLING TACK WELD 1 S' MIN- 3.5' NIA. DEWATERING ORIFICE, SCHEDULE -40 STEEL TUB MIN. J` DIAMETER AS PER CALCULATIONS 18' HIN. ALTERNATIVELY, METAL STAKES AND WIRE MAY BEUSED TO CONCRETE BASE PREVENT FLOTATION ON 2x RISER DIA. h1=H. PUBLIC WORKS SEDIMENT POND STD. PLAN - 216.1D +;� + DEPARTMENT RISER DETAIL MARCH 2008 H°I W3/I I CITY OF REN TON DATUM Planning/Building/Public Works Dept. UNDERGROUND UTILITY NOTE UNDERGROUND U77LI TIES ARE SHOWN IN THE APPROXIMATE LOCATION THERE IS NO GUARANTEE THAT ALL UTILITY LINES ARE SHOWN, OR THAT THE LOCA77ON, SIZE AND MATERIAL IS ACCURATE. THE CONTRACTOR SHALL UNCOVER ALL INDICATED PIPING WHERE CROSSING, INTERFERENCES, OR CONNECTIONS OCCUR PRIOR TO TRENCHING OR EXCAVA77ON FOR ANY PIPE OR STRUCTURES, TO DETERMINE ACTUAL LOCATIONS, SIZE AND MATERIAL. THE CONTRACTOR SHALL MAKE THE APPROPRIATE PROVISION FOR PROTECTION OF SAID FACILITIES THE CONTRACTOR SHALL NOTIFY Qp[-CALL AT 8-1-1 (WASHINGTON811. COW) AND ARRANGE FOR FIELD LOCA 770N OF EXIS77NG FACILITIES BEFORE CONSTRUCTION. R-393505 APPROVED FOR CONSTRUCTION SUBJECT TO ERRORS AND OMISSIONS BY- BY - BY: BY: LANGSTON ALLEY PROJECT ROAD AND UTILITY IMPROVEMENTS TESL DETAILS AND NOTES AS -BUILT DATE: DATE: DATE: DATE: 9/18/20 PIGS: DRAWING NO: TD-01 5 27 ��ik�i�ll�7�►l��li'1�H;7i1►1�