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UNDERDRAIW <br />PUMPBACK PIPE \, <br />�,_� �- � -�. \ -• -� ` \�� �. � `•_. __- _-- .—��-' /rte .� / <br />\ � _ DER�RAIN�UTOFF - <br />UPI <br />5 1 <br />,1 <br />UNDERDRAIN SUMP PLAN <br />40 0 40 80 FEET <br />must <br />6" DIA. CPe PRIMARY <br />UNDERDRAIN PIPE <br />(PROJECTED TO SECTION) <br />2' <br />1.5' <br />EXISTING SUBGRADE <br />PSSA EMBANKMENT <br />TOE <br />- 10' <br />1 y�i r���r�• <br />3' <br />EXISTING <br />80 mil SMOOTH — BEDROCK <br />LLDPE GEOMEMBRANE <br />UNDERDRAIN <br />FILL <br />V UNDERDRAIN CUTOFF DETAIL <br />255 NTS <br />r11 . ru�w uvu rur <br />EXISTING <br />W (UNDERDRAIN SUMP SECTION <br />255J NTS <br />REFERENCE: <br />EXSIING GROUND TOPOGRAPHY WAS CREAT D BY COMBINING T r Mi MVNG FILES: <br />SQUAW GULCH BASE 'OP "O - PHASF .[M, <br />(RECV MARCH 29, 2010 PROF.( rORESIGF� -I WEST SURVEYING, INC.) <br />SQUAW GULCH BASE ?OP0 - PHASE 2.DA!G <br />i (RECV APRIL 26, 2010 FRONT 1=CRESIGHT WEST SURVEYING, INC.) <br />n SQUAW GULCH BASE 10P0 - PHASE 3.UWG <br />(RECV MAY 4, 2010 FROM FORESIGHT WEST SURVEYING, INC.) <br />09028- COMOSITE- T'OPO MILE LIMITS.DWG <br />L (RECV MAY 28, 2010 FROM CC &V) <br />LEGEND: <br />s EXISTING GROUND SURFACE CONTOUR AND EL, FEET <br />PROPOSED GROUND SURFACE CONTOUR AND EL, FEET <br />EXISTING ROAD /TRAIL <br />PRIMARY UNDERDRAIN PIPE <br />-- UNDERDRAIN PUMPBACK PIPE <br />24" DIA. SDR 11 PERFORATED HDPE <br />UNDERDRAIN CUTOFF MANHOLE PIPE <br />SEE DETAIL V2 <br />CAP <br />2'� <br />1.5/' <br />1 <br />tr <br />\� / \� v `3 v • 3 <br />\ �3'� <br />EXISTING <br />80 and SMOOTH ` BEDROCK <br />LLDPE GEOMEMBRANE <br />UNDERDRAIN <br />FILL <br />V 1 UNDERDRAIN CUTOFF MANHOLE DETAIL <br />A255 NTS <br />DRILL B -HALF -INCH DIA. <br />HOLES EQUALLY SPACED <br />AROUND PERIMETER <br />t45' (TYP.) <br />J <br />V2 \ MANHOLE PERFORATION DETAIL <br />