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Home My WebLink About020 C402.pdfROM 1. A MINIMUM OF 6" FROM OUTSIDE DIAMETER OF PIPE .. -1 TO SIDE OF TRENCH MUST BE ALLOWED FOR WASHED Al I STONE. THE METHOD OF COMPACTING BACKFILL MATERIAL IS SUBJECT TO APPROVAL BY THE ENGINEER. AN APPROVED FILTER FABRIC SHALL BE PLACED AROUND STONE AND OVERLAPPED 8" AT TOP. PIPE #57 WASHED STONE SIZE TO BE SHOWN ON PLAN (MINIMUM 6" PIPE). PIPE do 6" to TO BE SCHEDULE 40 PERFORATED PVC OR ADS N-12 110 PERFORATED PIPE AND SHALL BE APPROVED BY ENGINEER PRIOR TO INSTALLATION. 2. SUBDRAIN PIPING SHALL BE NON -PERFORATED UNDER PAVEMENT (INCLUDING SIDEWALKS AND i ®ILIF PERFORATED -I DRIVEWAYS U.N.O.). — VARIES PVC PIPE 3. THE OUTLET PIPES SHALL BE SCHEDULE 80 UNDER (6" MIN. U.N.O.) ROADWAYS. 4. SEE SITE PLAN FOR SLOPE OF SUBDRAIN AND TIE IN TO STORM DRAINAGE. 5. FILTER FABRIC SHALL BE AN APPROVED, TYPE 2 WATER PERMEABLE, SYNTHETIC FABRIC. APPROVED to 6. PREFABRICATED DRAINAGE MAY BE USED WITH FILTER FABRIC APPROVAL OF ENGINEER OR AS NOTED ON PLAN. TYPICAL SUBDRAIN INFILTRATION DETAIL FOR PIPING UNDER 15" IN DIAMETER N.T.S. NOTES: 1. A MINIMUM OF 24" FROM OUTSIDE DIAMETER OF PIPE TO SIDE OF TRENCH MUST BE ALLOWED FOR COMPACTION OF FILL MATERIAL. BACKFILLING OF TRENCHES SHALL BE III. I I BACKFILL ACCOMPLISHED IMMEDIATELY AFTER THE PIPE IS LAID. THE FILL AROUND THE PIPE SHALL BE PLACED IN LAYERS NOT TO EXCEED 6". UNDER NO CIRCUMSTANCES SHALL WATER BE PERMITTED TO RISE IN UN-BACKFILLED TRENCHES AFTER THE SHALLETER T-OUTSIDE DIAMETER PIPE HAS BEEN PLACED. COMPACTION REQUIREMENTS HALL BE ATTAINED BY THE USE OF MECHANICAL TAMPS ONLY. EACH AND EVERY LAYER OF BACKFILL SHALL BE PLACED LOOSE AND THOROUGHLY COMPACTED INTO PLACE. I II 2. ALL BACKFILL MATERIAL SHALL HAVE AN IN PLACE COMPACTED DENSITY OF 95% STANDARD PROCTOR. 3. THE FINAL 2' BELOW FINISHED PAVEMENT GRADES SHALL BE COMPACTED TO 100% STANDARD PROCTOR. 4. ALL TRENCHING OPERATIONS SHALL MEET OSHA STANDARDS. 5. BACKFILL MATERIAL BENEATH ROADWAY SHALL BE SELECT BACKFILL MATERIAL. TYPICAL TRENCH DETAIL FOR INSTALLATION OF R.C.P. STORM DRAIN N,T.S. —NATIVE SOIL TRENCHWIDTH BACKFILL 5- (MIN)— Volum- -4.93 Galbbs (0.6602 cu, ft) per linear Ft fbw Rate - 34.5 &:Am (1% Ajpe) 1 —616 CORRUGA:FED PIPE. (Pdfo.# I LAN VIEW EZ-1501F 10, Stmage Volume - 4.93 Gallons (0.664I2 cm 1) per Bacar ft, flow Rate - 345 8pm (1% alope) EZ-FLOW DRAIN SYSTEM FOR 6" CORRUGATED PIPE N,T,S, (POR NON TRAFFIC AREAS) TRENCH WIDTH FT(MIN) Ijk _7=7 SECTION S"uge Vigil =x - LW QJ (0.14B cu. k) W Ilnear ft Flow Rate- 90 8 Um (1% &3q=) 1 -0 A 0 a, VA I AWN 6 (TYP) 17lik t7 IVP SOIL—T—NAT E EZ-0701F 10, SW=W Vol=e - 110 Gallons (0,1473 cu, fr-) per linear ft Flow Raw - 801 Vm 0% 44c) -3CO5 - TINTERNAL COUPLING 4 PIPE SHALL BE PLACED ON SUITABLE MATERIAL MDDE�,# 35-26-S COLLAP Irl NOTES. 1, ALL MATERIAL ExCEPT PVC BOOT IS STEEL IS 30A WELDED JOINT— LLAR ID STS EEL ST AINLES PICO iu L� STEEL IS POWDER COATED tN STANDARD COLORS FIER rUSTEMERS CHOICE f-T-1 WLLDED JOINT 5/16 HOLE ON REAR rOR MOUNTINCI 86' 315�X,1�5 X 1/8' CLEANOUT CO, VER FASTEND WITH SS PAN HEAD HEX 1/4-20 X 112' ATTACHED TO SS NUTS WELDED TO INSHDF� WELDED JOINT NCH 40 4* OR 6* P\ pp ,---'ADAPTER L 4, OR 6' NIRPLr WELDED INTO SQUARE TUBE �'k_trrEs AT Vzrllrlrlllm Im BACKI;-_41 RECOMMENDED MINIMUM TRENCH WIDTHS PIPE DIAM. 4" MIN. TRENCH MDTH 21 23" 8., 101, 26" 28" 12" 30" 151, 34" 18" 39" z/ IN111A 24" 48" SPRINGLINE BACKFILL 30" 56" H'UNC[I 3611 64" 4 1 CIF? 12 2 4" P1 PIE-BEDDING 42" 72" 6 [-'OR 30"-60" PIPE 48" 80" SUITABLE FOUNDA] ION 54R1 88 NOTE5: (SEA TAHLI 60" 96" 1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321, "STANDARD PRACTICE FOR UNDERGROUND INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS", MINIMUM RECOMMENDED COVER BASED ON LATEST ADDITION VECHICLE LOADING CONDITIONS 2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL, WHEN SURFACE LIVE LOADING CONDITION REQUIRED, PIPE DIAM. HEAVY CONSTRUCTION H-25 175T AXLE LOAD) 3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE, THE CONTRACTOR SHALL EXCAVATE TO A DEPTH 12" - 48" 12" 48" REQUIRED BY THE ENGINEER AND REPLACE NTH SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND AT THE DISCRETION OF THE DESIGN ENGINEER, THE TRENCH BOTTOM MAY BE STABILIZED USING 5 60-t 24" 60" A GEOTEXTILE MATERIAL. * VEHICLES IN EXCESS OF 75T MAY REQUIRE ADDITIONAL COVER 4. BEDDING:- SUITABLE MATERIAL SHALL BE CLASS 1, 11 OR 111. THE CONTRACTOR SHALL PROVIDE MINIMUM RECOMMENDED COVER BASED DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. UNLESS OTHERWISE NOTED BY THE ENGINEER, ONRAILWAYLOADING CONDITIONS MINIMUM BEDDING THICKNESS SHALL BE 4" (100mm) FOR 4"-24" (100mm-600mm); 6" (150mm) FOR 30"-60" COOPER (750mm-900mm). PIPE DIAM. 5. INITIAL BACKFILL SUITABLE MATERIAL SHALL BE CLASS 1, 11 OR III IN THE PIPE ZONE EXTENDING NOT LESS UPTO 24" 24" THAN 6" ABOVE CROWN OF PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION 30"-36" 36" TO ENGINEER. MATERIAL SHALL BE INSTALLED AS REQUIRED IN ASTM D2321, LATEST EDITION. 47'-60$48" 6. MINIMUM !QQVER: MINIMUM COVER, H, IN NON -TRAFFIC APPLICATIONS (GRASS OR LANDSCAPE AREAS) IS 12" COVER IS MEASURED FROM TOP OF PIPE TO BOTTOM FROM THE TOP OF PIPE TO GROUND SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO, PREVENT FLOATION. OF RAILWAY TIE. FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS 12" UP TO 48" DIAMETER PIPE AND 24" OF- COVER FOR E-80 COVER REQUIREMENTS, ARE ONLY APPLICABLE 54"-60" DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TO TOP OF RIGID TO ASTM F 2306 PIPE. PAVEMENT. TYPICAL TRENCH DETAIL FOR FINISH INSTALLATION OF ADS N-12 PIPE N.T,S NPDES Stormwater Discharge Permit for Construction Acti\Aties (NCGO1 ) NCIDENRtDivision of Water Quality NEW STABILIZATION TIMEFRAMES (Effective Aug. 3,2011) SITEAREADESCRIPTiON STABILIZATION TiMEFRAME EXCEPTIONS Perimeter dikes, swales, ditches, slopes 7 days None ......... . High Quality Water (HQW) Zones 7 days None If slopes are 10' or less in length and are Slopes steeper than 3:1 7 days not steeper than 2*1, 14 days are allowed. Slopes 3:1 or flatter 14 days 7 days for slopes greater than 50' in length. All other areas with slopes flatter than 4,1 14 days one except for perimeters and HQW Zones. GRADING STABILIZATION TIMEFRAMES IT SHALL SE THE CGIM40TORS RES ITY TO CON TA C T 7W CZI W1 EVa��R TO #VStb5E_ THA T ALI PARTIES ARE hV PC�� OF THE MST CURRENT SET OF CnV5TRUC77CW DOC��M BEFORE COIO VS7RtICTION COMMENCES.