2009-08-27_REVISION - M1983176 (5)

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M O a z a i I i I , APPROXIMATE TOP OF HIGHWALL. I APPROXIMATE I PERIMETER DRAIN d 1 STA 15 +65.6 START OF 'i r PHASF II PERIMETER DRAIN PIPE I I r i I r i I i I r I i I i I I I i I 1 I I i I i 1 i f I I S O u- LL FLOW 12 "0 FIVE SEGMENT 9W BEND 12 "0 THREE SEG "„",ENT 450 BEND AND 450 WYE I I EXISTING I APPROXIMATE � __EXCAVATION SLOPE I PERIMETER DRAIN -------------------------- - - - - -- -- ---- - - - - -- 3 3 1 \\ INSTALL BEND TO STA 15 +65-6 MATCH SLOPE" I /- INSTALL FITTINGS AS 12'0 MOLDED f / REQUIRED 10 CON IINUE PIPE � FUTURE PHASE II PIPE 90° BEND I / DOWN EXISTING HIr+ 1"n.A , !Ji uYV , rI V. .✓VY,L.L FUTURE PHASE II PIPE ------------- - - - - -- END OF PHASE I PERIMETER RG BANKS OF EXISTING ' DEWATER ING DITCH 0� O tL PLAN VIEW OF RUNDOWN. END OF PHASE I & START OF PHASE II FINAL GROUND St;PPAF`F COMPACTED FILL, USING ON SITE GRANULAR SOILS CI ICEr1 CONNECTION n s F Scale In Feet 12"O WRS FLANGE ADAPTOR AND BLIND FLANGE SET IN CONIC. RISER PIPE: 12 "0 HDPE DIPS SOLID PIPE 12"0 THREE SEGMENT 450 BEND I "'IO 45" *EYE PERIMETER DRAIN BEDDING & BACKFILL Mfi %11-0 �1�!4 dI 10 71firMHA -M V2 0 Sam mxom Fez o = 12" HDPE 12" HDPE SOLID WALL SOLID WALL PROFILE VIEW EXISTING EXCAVAT ION SLOPE' A 3 3. RIPRAP, COBBLES, OR CONCRE T E RUBBLE MEETING TYPE'M' PIPRAP GRADATIONS; MATCH EXISTING DEWATERING DITCH GRADE APPROX.6- ) ✓< ° i RUNDOWN & END OF PHASE I PROFILE 6" DIA. STL. CONC. FILLED BOLLARD PAINTED RED (OR APPROVED EQUAL) 12 "121 DIPS FLANGE f ADAPTOR AND / BLIND FLANGE FINAL FILL SURFACE 0 3 6 Scale in Feet PERIMETER DRAIN BEDDING GRADATION SIEVE SIZE %oPASSING 3" 1 100 ?' Y° 1 15 -70 #4 1 0 -15 _ #200 PIT BOTTOM __ — DRAIN PIPE: HDPE DUCTILE IRON PIPE SIZED 12" NOMINAL DIAMETER DR 17 V4111 3 ROWS OF 3" LONG 0.25" WIDE SLOTS - 120° APART. SLOTS 0.75" ON CENTER FILL 12"0 HDPE SOLID PIPE EXISTING -� \ COMPACTED FILL EXCAVATION E \ USING ON SITE :. GRANULAR SOILS �\ E;IST'rivG '`� SAND & GRAVEL — TYPICAL PERIMETER DRAIN CLEANOUT DETAILS n "I F Scale In Feet 3' 1' I (�— 3' - --►C SECTION VIEW 3' EXISTING GRADE 1 OF DITCH FI, OW 10' FUTURE CLEANOUT -— --------------- - - - - -- ----------------- - - -� -- - --I—I L INSTALL fEMPORARY RODENT SCREEN ��- 3. r RUNDOWN & END OF PHASE I CROSS -SEC T iON � 0 3 6 Scale In Feet -- EXISTING EXCAVATION SLOPE \, REMOVE VEGETATION PRIOR TO BACKFILLING NO -FILTER FABRIC ALONG THE `EXISTING EXISTING \ /� EXISTING EXCAVATION SLOPE GROUND SAND & \ / MIRAFI 140N FILTER FABRIC- SUR €ACE GRAVEL '� f _ \ OR APPROVED EQUAL COMPACTED FILL PERIMETER DRAIN (ON SITE SOILS) BEDDING &BACKFILL 12"0 HDPE SLOTTED DRAIN PIPE T 1 1 r _ I 2 6, COMPACTED 1 FIL I _. I � PCRtiV1ET.ER DRA11141 SF_DniNG_R RACKFII I, -12"0 HDPE. SLOTTED DRAIN PIPE PHASE I - SLOTTED PIPE TRENCH DETAIL• STATION 0 +00 TO 15 +55.5 2 3, MIRAFI 140N FILTER FABRIC OR APPROVED EQUAL PERIMETER DRAIN BEDDING -& BACKF[LL FILL —� 0 1 2 Scale In Feet PHASE Il - TYPICAL HIGHWALL PERIMETER DRAIN /2 CROSS - SECTION DETAIL STATION 15+65.6 TO 32+30.9 0 3 ti Scale in Feet APPROXIMATE � RIVER BANK FIND OF PHASE 11 DRAIN PIPE 9 CHECK VALVE FLOW SOUTH PLATTE RIVER LEVEL BELOW 5008FT INV EL =5006 95 % OF THE TIME / - PLACE CURVED LAST 20FT SOLID PIPE J BILL POINTED DOWNSTREAM NO SOIL, RIPRAP, OR WiTn NAT 1VE SOIL ` ANY OTHER FILL TO BACKFILL AND BEDDING PLACED IN RIVER -------------------- PHASE II DRAI": PIPE TERMINA-TIO 223 Scale In Feet REViS]IONS SPEER PIT NO.I DESCRIPTION 1 DATE BY PERIMETER DRAIN DETAILS L L y� i 7 r7� BAR IS ONE INCH ON "D E E R E & A U �:. 1 - GS��,..�:.,,a., au:�. %ti SUITE z ORIGINAL DRAWING LONGMONT CO 80503 T-1. ,s. pis 0 1" r Jt18 N(1, SHEET: IF NOT ONE INCH ON ="Cu1.��IEDBYt CMG +r- "`JIIMMY EIMD THIS SHEET. ADJUST ;_DRAWN E': ITR. WATu Z ?¢-oq SCALES ACCORDINGLY. I- D336.002.00 I ;�Of� - t CHF�'JCFI�RY ( -rCi<; -C(`AI F pS. t�1l1TFFD lJ