Loading...
HomeMy WebLinkAboutSW1191201_Plansheet - Misc. Detail_20210818;flc or e ties Ncturc� gri, id Wire fence Cross --Sec:tton V�ew Fidl,er 5teel fabric Sackfill trench Natural post wid compacl ground thorouq�hly a rniin �� r", 8" 24"' a Min Exis"rING SLUPE DESIGN OF SPILLWAYS EXis TING SLOPE RIP RAP D STONE STANDARD METAL POSTS Z-0," IN GROUND GAI V,ANIZED HARDWARE WIRE EXTENDS TO THE T TOP OF THE BOX E 0 n, ........... alcfl� 6P #57 WASHED STONE PLACED TO A HEIGHT OF 12"-18"'MINIMUM ABOVE THE TOP OF BOX NOTE 1, INSPECT INLET PROTECTION AND REMOVE SEDIMENT AFTER EACH RAIN EVENT, GRAVEL SHOULD BE REPLACED AND REPAIRS MADE AS NEEDED. 11 11 11 11111p 11 111111 11111111 IN III III InstaHation 1, T[te base Of boA[i end posts shoLdd, be at least one row higher ihan Ihe Specifications inid(fle, ofthe 6ejice� Check with a level if iiecessary, 2. InstaA posts 4 i�,ct aparl M unt]CA aTeas aud 6 i'M �yad on slandm-d � '11) phcafions, 3. Install posts 2 6ov� dveji on tho (1mvimll-cam mde ol, flic sill foncc, and as close a,; possible to the fiahric, enabling, posr,,,; to quppon flic fabric from upso-cam water pi essurc. 4.1 Install posts %vtfl'l the lnpph�s fiacing a,way frcm�,� ffiesih labric, 5. AtUich the fabfic w each 1!),o�l Nyd.Ai (hroe lies, all sl!xwedm�ithin the top S inches, ol'flie fabric. Attach 42ach tic dMg-omdliy 45 degrees through dw 1`11111-ic, ,vith each puncuire at linist I hich veriically,,ipam. Also. e.ach lie should be positioned to hang on. a pUSI oipple WhC11 ti��AIAC]Ied 10 IIFUVCI�l SLIg,141p. g 6.L W�-�-Jf) 0 inches offiabric aroutad ihe cad Ix.,),sts and secure �Vith 3 ties. 7'. No rnoic: flizal 24 inch" of a 36 ltid,� fabne is ailmed above grotnn,d level, C017111"action. 91 �yllpact I I I oil �s Vitally ilopol"Nuit ficir 01`6�live �Csuhs, Compao ilic, Sod jrnmedime�y nexi lo the silt fence fiabric with the firont �vheel ofthe lrachjr, skid meer, or nAler excaing at least 60 p(,mrnds persquare inch. GonipmA the ul!)SWean side, lirst, a nd dien cach side twice for �,�i IWA of,4 lrips. Maintenance Makeany requit"ed repairs Should the tltbric ol`�n scdiAlem rence colhapse, tear., d"�otnpose oi,r'. bec-onic inefficetive, rep laco it promptly. Rcmovv "'Wiawnt dqlii�s�ts ,�s jwcvs�,,ary to provklo Wcqmft �,4orogv vohllu�: for the next raim aad to reduce pressure on the fiettm 'llike care to avoid undcunining the fQncc during deanoul, RCII'love, III fencing materials m,id unstablL sedfi,ncnt dcpasi�s anid bring the rera to gnade and stabilize ii afier tho cont6buting drainage arc.n has been VIMAX VAR�ES CLASS I RIP RAP, NOTES� HEIGHT AND WIDTH DETERMINED BY EXISTING TOPOGRAPHY AND SEDIMENT STORAGE REQUIRED, KEY RIP RAP INTO THE DAM FOR STABILIZATION, STEP S,EQUEN E MI,AINTENANCE NOTES� I. INSPECT CHECK PROTECTION WEEKLY AND AFTER J" RAINFALL EVENT AND REPAIR IMMEDIATELY. REMOVE SEDIMENTSTRAW, LIMBS, OR OTHER DEBRIS THAT C'OULD CLOG THE CHANNEL WHEN NEEDED. 2, IMMEDIATELY CORRECT ANY DAMAGE CAUSED BY SUBMERGED AND DEPOSITION ABOVE THE CHECK DAM AND FROM HIGH FLOWS AROUND THE EDGES. 3 REMOVE SEDIMENT ACCUMULATED BEHIND THE D�AMS, AS NEEDED TO, PREVENT DAMAGE TO CHANNEL VEGETATION, ALLOW THE CHANNEL TO DRA,INTHROUGH THE STONE CHECK DAM, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER THE DAM. ADD STONES TO DAMS, AS NEEDED TO MAINTAIN DESIGN HEIGHT AND CROSS SECTION. EXCAVATED TRFNCHI NOTES, I� INSTALL SILT FENCE PER STD. SILT FENCE DETAIL. 2, LOCATE REINFORCED OUTLET AT LOW POINTS OF SILT FENCE BARRI'ER,, STEEL POST WOVEN WIRE FABRIC HORIZONTAL POST SILT FENCE FABRIC CLASS'S'IRIP RAP, JYP) .................................. SECTION J ULU rAdMIL, ZON] AL POST 2 #57 WASHED STONE IF FENCE FABRIC MAINTENANCE NOTES: I� REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE/OUTLET. TAKE CARE TO, AVOID UNDERMINING, THE FENCE DURING CLEAN�OUT. REMOVE & REPLACE STONEAS NECESSARYAS IT BECOMES CLOGGED WITH SEDIMENT. 1 REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADEAND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED, 2 TEMPORARY REINFORCED, SILT FENCE OUTLET N.T.S. NOTES: WOODEN STAKE WITH WAI ILE 1, WATTLES SH�ALL BE FILLED WITH STRAW OR ANCHORED "TO THE TOP OTHER APPROVED MATERIAL, FILTER FABRIC OR DITO I LINER 2� SPACING FOR WATTLES SHALL BE AS SHOWN ON EROSION CONTROL PLAN. 3,, STAKE IN ACCORDANCE WITH MANUFACTURER'S REQUIREMENTS. 4� THE SOCK SHALL BE PRODUCED FROM A 5 MIL THICK CONTINUOUS POLYPROPYLENE, WOVEN INTO, A TUBULAR MESH NETTING MATERIAL, WITH OPENINGS IN THE KNITTED MESH OF 1/8`70 3/8" OPENINGS. 5� HARDWOOD 2"x2" STAKES SHALL BE DRIVEN THROUGH CENTER OF COMPOST SOCK AT4' O.C. MAXIMUM SPACING ANGLED, UP SLOPE,, MAINTENANCE NOTES: 1, INSPECT COMPOST SOCKS WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT (1/2 INCH OR GREATER.), 2. REMOVE ACCUMULATED SEDIMENT AND ANY DEBRIS,, THE COMPOST SOCK MUST BE REPLACED IF CLOGGED OR TORN, 1 IF PONDING BECOMES EXCESSIVE, THE SOCK MAY NEED TO BE REPLACED WITH A LARGER, DIAMETER OR A DIFFERENT MEASURE, 4� THE SO�CK NEEDS TO BE REINSTALLED IF UNDERMINED OR DISLODGED. 5� THE COMPOST SOCK SHALL BE INSPECTED UNTIL LAND DISTURBANCE IS COMPLETE AND THE AREA ABOVE THE MEASURE HAS BEEN PERMANENTLY STABILIZED, NOTE.,AN ACCEPTABLE ALTERNATE TO FILTER FABRIC FENCE IS A LINE OF STAKED STRAW BALES PUMP . .... INSERT DISCHARGE HOSE IN TUBE SUCTION HOSE--\ . ....... . . SILT BAG 1=1TI-=-zi-T4� S— — ._T-r Ll Fi + + WATER I IA I I__I 11-11 =1 I DISCHARGE HOSE S I IA I 0 ? " "': "': I I d /A", , 1. CONTRACTOR TO USE SILT BAG PR,IOR TO DEWATER TEMPARARY SEDIMENT BASINS PRIOR TO REMOVAL. 2. SILT BAG CONTENTS TO BE DISPOSED OF OFF SITE. 12' DIIAMETER STRAW FILLED WATTLE —DITCHLINE 12" DIAMETER STRAW Ell ED WATT] E FASTENED, 70, WOODEN STAKE BY NAI STAKE WOODEN STAKE .......... FILTER FABRIC VV D ITO 11LINE OR DT.TCH LINER . . . . . . . . . . . . 6" COVER, 8" FABRIC STAPLE . ..... CROSS SECTION 3, TIMES I.D. PLAN VIEW L....................................... ............ P,IPE .......... . I LIJTI FILTER FA5R( SECTION 'A -A" MAINTENANCE RIP RAP SHOULD BE INSPECTED, PERIODICALLY FOR SCOUR OR DISLODGED STONES. CONTROL OF WEED AND BRUSH GROWTH MAY BE NEEDED IN SOME LOCATIONS. 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 HASACCUMIULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP. 1 CHECK THE STRUCTURE FOR DAMAGE AND REPLACE ANY DISPLACED RIPRAP IMMEDIATELY. 4, APPROPRIATELY STABILIZE ALL BARE AREAS AROUND THE INLET, FLOW Z CLASS I RIP RAP SEE SECTION THRU BASIN BELOW --f LOW\ % % I -_ z IN , R` . ....................... RIP RAP pip HEADWALL 95 WASHED STONE HIICK X 3'fflGH Mft STOR FIL AREA ro BE DISTURBED PERsi�,Ecrm Vim (CUT, Ell L, ETC) /7 V FLOOD PIPE INVERT STORAGE ow ZONE FL 2.5 12" 12..� SEDIMIEN r STORAGE CLASS B STONE Ir' 7 WASHED STONE MIN., MAX, SEDIMENT D�EPTI I (CLEAN OUT POIN I') SECTI.Q.N.., TEMPORARY'WATTLE N.T.S. TEMPORARY ROCK PIPE INLET PROTECTION NJOTES� 1. CONSTRUCT THE ENTRANCE TO THE SLOPE DRAIN OF A STAN DARD FLARED -EN D SECTION OF PIPE W17H A MINIMUM 6-INCH METAL TOE PLATE (CROSS-SECTION VIEW), MAKE ALL FITTINGS WATERTIGHT, A STANDARD T-SECTION FITTING MAY ALSO BE USED AT THE INLET, 2, UISE AN EARTHEN DIVERSION TO DIRECT SURFACE RUNOFF INTO THE TEMPORARY SLOPE DRAIN, MAKE THE HEIGHT OF THE BERM OVER THE DRAIN CONDUIIT A MINIMUM OF 1�5 FT AND AT LEAST 6, INCHES HIGHER THAN THE ADJOINING BERM ON EITHER SIDE, THE LOWEST POINT OF THE DIVERSION BERM SHOULD BE A, MINIMUM OF I FT 3, ABOVE THE TOP OF THE DRAIN 50 THAT DESIGN FLOW CAN FREELY ENTER THE PIPE. 4. PROTECT THE OUTLET OF THE SLOPE DRAIN FROM EROSION 'WITH RIPRAP DISSIPATER, NATLJRA� FLOW MAJOR IMODIFICAT�ON TO S�TORMW,A,TER PERIMIT NOTES: 1. L = THE LENGTH OF TH�E R,IIPRAP APRON. 2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT LESS THAN 6"' (INCHES), 1 A FILTER, BLANKET OR FILTER. FABRIC SHOULD BE VVI INSTALLED BETWEEN THE RIPRAP AND SOIL FOUNDATION., 4. MAINTAIN ENERGY DISS,IPATERS INSTALLED DURING EARLY SITE WORK THROUGHOUT THE CONSTRUCTION AREA, ENERGY DISSIPATER SCHEDULE PIPE SIZE W I FT) W2 (FT) GTH LENGTH (FT, HICKNESS (IN). CLASS, RR-Cl, 42'" 24�5 10.51 2LO 24 6 1 RR-D1 7,5 4, 5, 610 12 6 8 RR-F1 15" 6�5 4,0 5,0 12 31 A RR-Gl 1,5" 6.5 4.0, 5,,0 12 3 A RR-WETPIOND 'B` 24"' 10.0 61.0 &C 12 6 B RR HI (TEMP) t211 7.0 3.0 6,,0 22 6 8 RR 11 (TEMP) 181, 13,5, 4, r), 1,2.0 24 13 1 RR-J1 (TEMP) 1 7,0 3,0 61.0 22 6 8 RR-K1 (TEMP) 15" 6,5 4,0, 5,0 12 4 A RR-L1 (TEMP) ............... "I'l""I'll""I'll'll""I'll""I'll",'ll""I'll""I'll'll""I'll""I'll""I'll""I'll",'ll""IlI 1,51, — 11.5 "I'l""I'll""I'll'll""I'll""I'll",'ll""I'll""I'll",'ll""I'll,,'ll""IlI 4.0, — 10.01 — 24 "I'l""I'll""I'll'll""I'll""I'll",'ll""I'll""I'll",'ll""I"ll,'ll""I'll""I'll",'ll""I'll""I'll",ll,"'I 13 — 1 — RR-Ml T. 5 4.5, 61.0 12 3 A RR-Ni f rEmp) 18" 6,,5 1 4,0, 9110 22 61 IB I m 11117-01"0111 gig EXCAVATED AREA (AS REQUIRED) SIDE SLOPE 2 1 9 1 F�d F ............... ........ ACCUMULATED SEDIIMEN I , . . .. . .. . .. . .. . .. .......... .......... .......... EXCAVATED DEPT� PIK rl a I JE11 I GRAVE L-SUPPO RTIED BY I 1ARDWARE V - MAX 2' BELOW TOP OF CLOTH TO ALLOW DR,A�NAGE AND INLET ........... 1:9 lz='� I � RESTRICT SEDIMENT MOVEMENT. -I I El I WEEP HOLES rOk DEWATER'fN(� . . ........................... III , — ............ .............. CONSTRUCTION SPECIFICATIONS: L. CLEAR THE AREA, OF ALL DEBRIS THAT MIGHT HINDER EXCAVATION AND DISPOSAL OF SPOIL, 21� GRADE THE APPROACH OF THE INLET UNIFORMLY. FLOW FLOW 1. PROTECT WEEP HOLES BY GRAVEL. 4, WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN PERMANENTLY STABILIZED, SEAL WEEP HOLES, FILL THE EXCAVATED BASINWITHI STABLE N SOIL TO FINAL GRADING ELEVATIONS, COMPACT THE FILL PROPERLY AND N I " 1TA 0 S BILIZE, INSPECT CLEAN, AND PROPERLY MAINTAIN THE EXCAVATED, BASIN AFTER 'N EVERY STORM UNTIL THE COMBINATION DRAINAGE AREA HAS BEEN FLOW PERMANENTLY STABILIZED, TO PROVIDE SATISFACTORY' BASIN FLOW EFFICIENCY, REMOVE SEDIMENT WHEN THE VOLUME OF THE BASIN HAS BEEN REDUCED BYONE-HALF. SPREAD ALL EXCAVATED MATERIAL EVENLY OVER THE SURROUNDING LAND AREA OR STOCKPILING AND STABILIZE IT APPROPRIATELY, CONSTRUCTION SPECIFICATION 1. PLACE SLOPE DRAINS ON UNDISTURBED SOIL OR WELL COMPACTED FILL AT LOCATIONS AND ELEVATIONS SHOWN ON PLAN�. MI,N, BERM 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 TOP 3:1 15MIN WIDTH, AND 3 1 S�I DE SLOPES. HOLD-DOWN1 S�TAKES, 5. ENSURE THAT ALL SLOPE DRAIN CONNECTIONS AREWATERTIGHT. 6� ENSURE THAT ALL FILL MATERIAL IS WELL -COMPACTED, SECURELYFASTEN THE EXPOSED SECTION OF' THE DRAIN WITH GROMMETS OR 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. 10' SPACING 8. MAKE THE SETTLED, COMPACTED DIKE RIDGE NO LESS, THAN 1 FOOT ABOVE THE TOP OF THE PIPE AT EVERYPOINT, 91, IMMEDIATELY STABILIZE ALL DISTURBED AREAS FOLLOWING CONSTRUCTION, ......................................... . MAINTENANCE ........... PLASTIC .......................................... I INSPECT THE S,LOPE DRAIN AND SUPPORTING DIVERSION AFTER EVERY RAINFALL AND CORRUGATED PIPE, INLET PROMPTLYMAKE NECESSARY REPAIRS, WHEN THE PROTECTED AREA HAS BEEN PERMANENTLY STABILIZED, TEMPORARY MEASURES MAY BE REMOVED, MATERIALS DISPOSED OF PROPERLY,AND ALL DISTURBED, AREAS STABILIZED, APPROPRIATELY. STABILIZE SLOPE TOTAL FLOW !SIZE DRAIN AREA (ACRES) (CFS) A 0,,2,7 1�2 112"' ........................... 3.8 18" C 0,2,8 1.2 Maximum Drainage lPipe, 011ameler A,rea per Pipe (acres) (Inehes) 0.50 12 0,75 is 1.0110 la, >1 OW as designed 111,11[pt 1*�qion bemones nRmp crin''iplex beyond 11fis SUe. gi III I 1119 �NSTALLA1'10N DETAil- �=j OUTLET ___r_ � � too ........... . EXPANSION ................................ RESTRAINT DUMP STRAPS NOTES: 1, SAGS SHOULD BE CLEANED (114"'NYLON'ROPE, 2 EACH OUTAFTER EVERY RAIN 2- FLAT WASHERS) EVENT ANDIOR AS NEED�,ED. 4'MIN LEVEL SECTION BAG DETA�L -0 CROSS�-SECTION VIEW PLAN VIEW STANDARD T-SECTION E 0 0 J > z Ln 0 r,4 Q Cd r14 Or.) N CL �h A 00 M .1 OL 4-0 "E U rG W :E CL n, LO Q uj Lu C) r-- Ln ce), 5 M m �0 C6 (5 z z 0 'T", E- �5 0 2�1 0 6 L .4 LL11 _6 0) L) o LL F- Zi E 0 t " C,4 m _i -_ m z < kn 0� 0, u� NOT FOR CONSTRUMON _1kj e. %!6k1k% C RO �41.- % % % z S,EAL m 0, 3 3 612' tit A SD/DD REVIEW Lu z z z %*4-0*4 ^100 LL LLJ Z ui f r% vi LU Z Z 0 LO LO 4-J CD CAI 100 Lu C: 0 z fy_ z C: z z 0 z C: co 4- 0 — 0 -1-1 ^,00 0 LL Ott Lu go ^100 LL q > 5 < LL CY) (10 — Z 0 01 0 0 Lo 0 CL _j Ill 0 V-1 CD U) Lo RevisiOns 0� Date COP #27 2021 JULY09 SWR 1 2,021 AUG 13 ................................ ....................................................... Project Number 1711-13 Date: 2021 AUG 13 Drawn by� FS SITE D�E,TAILS She!el Number ..........................................................................................................................................................................................................................................................................