SW1191201_Plan (Misc. Detail)_20200518

1' FLOODAREA TO BEMAX. SEDIMENT DEPTH (CLEAN OUT POINT)#57 WASHED STONESEDIMENT STORAGE(CUT, FILL, ETC.)DISTURBED 5'FLOWSECTION STORAGEZONE1'3'GROUNDNATURALCLASS B STONE3'FLOWPERSPECTIVE VIEWSEDIMENTFLOWSTORAGESECTION THRU BASIN BELOWFLOWCLASS 1 RIP RAP SEE #5 WASHED STONERIP RAPPIPEPIPE INVERTFLOWINVERTFLOW12"12"12"2.51MIN.HEADWALL1' THICK X 3' HIGH MIN.MAINTENANCE NOTES:1. INSPECT THE BARRIER AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL AND REPAIR IMMEDIATELY.2. REMOVE SEDIMENT AND RESTORE SEDIMENT STORAGE AREA TO ITS ORIGINAL DIMENSIONS WHEN SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP.3. CHECK THE STRUCTURE FOR DAMAGE AND REPLACE ANY DISPLACED RIPRAP IMMEDIATELY.4. APPROPRIATELY STABILIZE ALL BARE AREAS AROUND THE INLET.TEMPORARY ROCK PIPE INLET PROTECTIONN.T.S.7TEMPORARY RIPRAP OUTLET PROTECTIONN.T.S.N.T.S.TEMPORARY SEDIMENT FENCE N.T.S.TEMPORARY REINFORCED SILT FENCE OUTLET10'ELEVATIONSECTION18"18"24"21NOTES:1.INSTALL SILT FENCE PER STD. SILT FENCEDETAIL.2.LOCATE REINFORCED OUTLET AT LOW POINTS OFSILT FENCE BARRIER.MAINTENANCE NOTES:1.REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATESTORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ONTHE FENCE/OUTLET. TAKE CARE TO AVOID UNDERMINING THE FENCEDURING CLEANOUT. REMOVE & REPLACE STONE AS NECESSARY AS ITBECOMES CLOGGED WITH SEDIMENT.2.REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENTDEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTERTHE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLYSTABILIZED.N.T.S.TEMPORARY ROCK CHECK DAMDESIGN OF SPILLWAYSMIN. WEIR LENGTH(FT)4.06.08.010.012.054321(ACRES)DRAINAGE AREACLASS 1SIDE VIEWNOTES:FOR STABILIZATION.KEY RIP RAP INTO THE DAMSEDIMENT STORAGE REQUIRED.EXISTING TOPOGRAPHY ANDHEIGHT AND WIDTH DETERMINED BY1/2' - 1'VARIESEXISTING SLOPEEXISTING SLOPE12"- #57 WASHED STONETOP ELEV OF STORMWATERRIP RAPVARIESMAX1/2'-1'11VARIESSTEP SEQUENCEEXISTING SLOPEFRONT VIEW KEYED RIP RAPVARIES#5 WASHED STONEMAINTENANCE NOTES:1.INSPECT CHECK PROTECTION WEEKLY ANDAFTER 12" RAINFALL EVENT AND REPAIRIMMEDIATELY. REMOVE SEDIMENT STRAW,LIMBS, OR OTHER DEBRIS THAT COULD CLOGTHE CHANNEL WHEN NEEDED.2.IMMEDIATELY CORRECT ANY DAMAGECAUSED BY SUBMERGED AND DEPOSITIONABOVE THE CHECK DAM AND FROM HIGHFLOWS AROUND THE EDGES.3.REMOVE SEDIMENT ACCUMULATED BEHINDTHE DAMS AS NEEDED TO PREVENT DAMAGETO CHANNEL VEGETATION, ALLOW THECHANNEL TO DRAINTHROUGH THE STONECHECK DAM, AND PREVENT LARGE FLOWSFROM CARRYING SEDIMENT OVER THE DAM.ADD STONES TO DAMS AS NEEDED TOMAINTAIN DESIGN HEIGHT AND CROSSSECTION.N.T.S.PROFILE VIEWFILTER FABRICOR DITCH LINERDITCHLINEWOODEN STAKE WITH WATTLE ANCHORED TO THE TOP FLOWDITCHLINEFILTER FABRICOR DITCH LINERWOODEN STAKE8" FABRIC STAPLE12" DIAMETER STRAW FILLED WATTLEFASTENED TO WOODEN STAKE BY NAIL ORSTAPLE18"18"6" COVER12" DIAMETER STRAW FILLED WATTLENOTES:1.WATTLES SHALL BE FILLED WITH STRAW OROTHER APPROVED MATERIAL.2.SPACING FOR WATTLES SHALL BE AS SHOWNON EROSION CONTROL PLAN.3.STAKE IN ACCORDANCE WITHMANUFACTURER'S REQUIREMENTS.4.THE SOCK SHALL BE PRODUCED FROM A 5 MILTHICK CONTINUOUS POLYPROPYLENE, WOVENINTO A TUBULAR MESH NETTING MATERIAL,WITH OPENINGS IN THE KNITTED MESH OF1/8"TO 3/8" OPENINGS.5.HARDWOOD 2"x2" STAKES SHALL BE DRIVENTHROUGH CENTER OF COMPOST SOCK AT 4'O.C. MAXIMUM SPACING ANGLED UP SLOPE.MAINTENANCE NOTES:1.INSPECT COMPOST SOCKS WEEKLY AND AFTER EACHSIGNIFICANT RAINFALL EVENT (1/2 INCH ORGREATER).2.REMOVE ACCUMULATED SEDIMENT AND ANYDEBRIS. THE COMPOST SOCK MUST BE REPLACED IFCLOGGED OR TORN.3.IF PONDING BECOMES EXCESSIVE, THE SOCK MAYNEED TO BE REPLACED WITH A LARGER DIAMETEROR A DIFFERENT MEASURE.4.THE SOCK NEEDS TO BE REINSTALLED IFUNDERMINED OR DISLODGED.5.THE COMPOST SOCK SHALL BE INSPECTED UNTILLAND DISTURBANCE IS COMPLETE AND THE AREAABOVE THE MEASURE HAS BEEN PERMANENTLYSTABILIZED.TEMPORARY WATTLECROSS SECTION12456NOTES:1. L = THE LENGTH OF THE RIPRAP APRON.2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT LESS THAN 6" (INCHES).3. A FILTER BLANKET OR FILTER FABRIC SHOULD BE INSTALLED BETWEEN THE RIPRAP AND SOIL FOUNDATION.4. MAINTAIN ENERGY DISSIPATERS INSTALLED DURING EARLY SITE WORK THROUGHOUT THE CONSTRUCTION AREA.AAI.D.3 TIMES I.D. (W2)PLAN VIEWSECTION 'A-A'dLPIPEPIPEMAINTENANCERIP RAP SHOULD BE INSPECTED PERIODICALLY FOR SCOUR ORDISLODGED STONES. CONTROL OF WEED AND BRUSHGROWTH MAY BE NEEDED IN SOME LOCATIONS.ENERGY DISSIPATER SCHEDULEPIPE SIZEW1 (FT)W2 (FT)LENGTH (FT)THICKNESS (IN).STONECLASSD50 SIZE(IN.)W1NOTE:1.INSPECT INLET PROTECTION AND REMOVE SEDIMENT AFTEREACH RAIN EVENT. GRAVEL SHOULD BE REPLACED ANDREPAIRS MADE AS NEEDED.42"24.5RR-C110.521.02461*RR-901-900 SHALL BE INSTALLED WITHIN THE WIDTH OF THE CHANNEL.THE TOP ELEVATION SHALL MATCH EXISTING STREAM BED ELEVATION.RIP RAP SHAPE MAY VARY BASED ON STREAM BED WIDTHS.TEMPORARY EXCAVATED DROP INLET PROTECTION N.T.S.8HARDWARE CLOTH AND GRAVEL YARD INLET PROTECTION N.T.S.9EROSION CONTROL PROTECTION FOR PIPE TRENCHING N.T.S.1011NOTE: AN ACCEPTABLE ALTERNATE TO FILTER FABRICFENCE IS A LINE OF STAKED STRAW BALESFILTER FABRICEMBEDDED 3"INTO GROUNDSILTFENCEXXMATERIALSTOCKPILEDMATERIALSEXCAVATEDTRENCHTRENCHN.T.S.DEWATERING PUMP WITH SILT BAG315"RR-D115"RR-E14.07.5226B15"RR-F115"RR-G16.55.0123A5.0123A4.07.5226BCONSTRUCTION SPECIFICATIONS:1.CLEAR THE AREA OF ALL DEBRIS THAT MIGHT HINDER EXCAVATION ANDDISPOSAL OF SPOIL.2.GRADE THE APPROACH OF THE INLET UNIFORMLY.3.PROTECT WEEP HOLES BY GRAVEL.4.WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN PERMANENTLYSTABILIZED, SEAL WEEP HOLES, FILL THE EXCAVATED BASIN WITH STABLESOIL TO FINAL GRADING ELEVATIONS, COMPACT THE FILL PROPERLY ANDSTABILIZE.MAINTENANCE:INSPECT, CLEAN, AND PROPERLY MAINTAIN THE EXCAVATED BASIN AFTEREVERY STORM UNTIL THE COMBINATION DRAINAGE AREA HAS BEENPERMANENTLY STABILIZED. TO PROVIDE SATISFACTORY BASINEFFICIENCY, REMOVE SEDIMENT WHEN THE VOLUME OF THE BASIN HASBEEN REDUCED BY ONE-HALF. SPREAD ALL EXCAVATED MATERIAL EVENLYOVER THE SURROUNDING LAND AREA OR STOCKPILING AND STABILIZE ITAPPROPRIATELY.WEEP HOLES FORDEWATERINGEXCAVATED DEPTH, MIN.1' - MAX 2' BELOW TOP OFINLETEXCAVATED AREA (AS REQUIRED)SIDE SLOPE 2:1N.T.S.TEMPORARY SLOPE DRAIN4' MINLEVEL SECTION10' SPACING3:1 4'MIN..5' MINPLAN VIEWSTANDARD T-SECTIONCROSS-SECTION VIEWNOTES:1.CONSTRUCT THE ENTRANCE TO THE SLOPE DRAIN OF A STANDARD FLARED-END SECTION OF PIPE WITH AMINIMUM 6-INCH METAL TOE PLATE (CROSS-SECTION VIEW). MAKE ALL FITTINGS WATERTIGHT. ASTANDARD T-SECTION FITTING MAY ALSO BE USED AT THE INLET.2.USE AN EARTHEN DIVERSION TO DIRECT SURFACE RUNOFF INTO THE TEMPORARY SLOPE DRAIN. MAKETHE HEIGHT OF THE BERM OVER THE DRAIN CONDUIT A MINIMUM OF 1.5 FT AND AT LEAST 6 INCHESHIGHER THAN THE ADJOINING BERM ON EITHER SIDE. THE LOWEST POINT OF THE DIVERSION BERMSHOULD BE A MINIMUM OF 1 FT3.ABOVE THE TOP OF THE DRAIN SO THAT DESIGN FLOW CAN FREELY ENTER THE PIPE.4.PROTECT THE OUTLET OF THE SLOPE DRAIN FROM EROSION WITH RIPRAP DISSIPATER.MAINTENANCE1.INSPECT THE SLOPE DRAIN AND SUPPORTING DIVERSION AFTER EVERY RAINFALL ANDPROMPTLY MAKE NECESSARY REPAIRS. WHEN THE PROTECTED AREA HAS BEENPERMANENTLY STABILIZED, TEMPORARY MEASURES MAY BE REMOVED, MATERIALSDISPOSED OF PROPERLY, AND ALL DISTURBED AREAS STABILIZED APPROPRIATELY.SLOPEA0.27 AREA (ACRES)SIZETOTAL FLOW(CFS)1.2DRAIN12"CONSTRUCTION SPECIFICATION1.PLACE SLOPE DRAINS ON UNDISTURBED SOIL OR WELL COMPACTED FILL AT LOCATIONS AND ELEVATIONS SHOWN ON PLAN.2.SLIGHTLY SLOPE THE SECTION OF PIPE UNDER THE DIKE TOWARDS ITS OUTLET.3.HAND TAMP THE SOIL UNDER AND AROUND THE ENTRANCE SECTION IN LIFTS NOT EXCEEDING 6 INCHES.4.ENSURE THAT FILL OVER THE DRAIN AT THE TOP OF THE SLOPE HAD MINIMUM DIMENSIONS OF 1.5 FEET DEPTH, 4 FEET TOPWIDTH, AND 3:1 SIDE SLOPES.5.ENSURE THAT ALL SLOPE DRAIN CONNECTIONS ARE WATERTIGHT.6.ENSURE THAT ALL FILL MATERIAL IS WELL-COMPACTED. SECURELY FASTEN THE EXPOSED SECTION OF THE DRAIN WITH GROMMETSOR STAKES SPACES NO MORE THAN 10 FEET APART.7.EXTEND THE DRAIN BEYOND THE TOE OF THE SLOPE, AND ADEQUATELY PROTECT THE OUTLET FROM EROSION.8.MAKE THE SETTLED, COMPACTED DIKE RIDGE NO LESS THAN 1 FOOT ABOVE THE TOP OF THE PIPE AT EVERY POINT.9.IMMEDIATELY STABILIZE ALL DISTURBED AREAS FOLLOWING CONSTRUCTION.STEEL POSTWOVEN WIRE FABRICHORIZONTAL POSTSILT FENCE FABRICCLASS 'B' RIP RAP (TYP)NOTCH AND FOLD FABRICOVER HORIZONTAL POST12" #57 WASHED STONESILT FENCE FABRICSTD SILT FENCEPOST (TYP)POSTFILTERFABRICACCUMULATED SEDIMENTGRAVEL-SUPPORTED BY HARDWARECLOTH TO ALLOW DRAINAGE ANDRESTRICT SEDIMENT MOVEMENT.FLOWFLOWFLOWFLOWBERMHOLD-DOWN STAKESPLASTICCORRUGATED PIPESTABILIZEOUTLETINLETSTANDARD METALPOSTS 2'-0" IN GROUNDGALVANIZED HARDWAREWIRE EXTENDS TO THETOP OF THE BOX#57 WASHED STONE PLACED TOA HEIGHT OF 12"-18" MINIMUMABOVE THE TOP OF BOX6.59.09.04.04.0B0.883.818"C0.281.212"12"RR-H1 (TEMP)3.06.0226B18"RR-I1 (TEMP)12"RR-J1 (TEMP)13.512.0241316.0226B7.07.04.53.015"RR-K1 (TEMP)5.0124A6.54.015"RR-L1 (TEMP)10.02413111.54.0WATERINSERT DISCHARGEHOSE IN TUBESILT BAGPUMPSUCTION HOSEDISCHARGE HOSENOTES:1.CONTRACTOR TO USE SILT BAG PRIOR TO DEWATER TEMPARARY SEDIMENT BASINSPRIOR TO REMOVAL.2.SILT BAG CONTENTS TO BE DISPOSED OF OFF SITE.DUMP STRAPS2 EACHEXPANSIONRESTRAINT(1/4" NYLON ROPE, 2" FLAT WASHERS)DUMP STRAP1" REBAR FOR BAGREMOVAL FORM INLETDUMP STRAPNOTES:1.BAGS SHOULD BE CLEANEDOUT AFTER EVERY RAINEVENT AND/OR AS NEEDED.SILT BAG INLET PROTECTION N.T.S.1218"RR-M16.0123A7.54.518"RR-N1 (TEMP)9.0226B6.54.0N O R T H C A R O L I N
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LE N G I N E E RF R A N C I S S L I N S K Y, I I ISheet Number:Date:Drawn by:Project Number:2020 APR 07FSRevisionsNo.DateNC LICENSE NUMBER C-1652
Timmons Group
Attn: Frank Slinsky, PE
5210 Trinity Road; Suite 102
Raleigh, NC 27607
Phone: [phone]
Fax: [phone]
DPS - NORTH CAROLINA NATIONAL GUARD
MORGANTON REGIONAL READINESS CENTER (NC CONNECT)
SCO#: 16-14394-02B Phase II: New Construction
MILCON Project #: MDT714
5155 Western Avenue, Morganton, NC 286551711-B2020 FEB 1222020 APR 073C8.12SITE DETAILS