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A <br />5255-1 <br />ti <br />W <br />0 5245 <br />h <br />W <br />W <br />5235 <br />RIPRAP <br />050 = 12 „ <br />- NA TURAL GROUND <br />PER /METER DITCH <br />i <br />PRINCIPAL SPILL WA Y - l8" CMP <br />WITH A /0" GATED DECANT <br />TRAPEZOIDAL EMERGENCY SP /L L WA Y <br />PLAN VIEW - LOADOUT AREA POND L2 <br />SCALE: I" = 40' <br />NATURAL GROUND -� <br />IOYR. 124HR. EVENT ELEV. 5246_40' <br />SEDIMENT LEVEL ELEV 5243.08' / <br />HORIZONTAL SCALE: I” = 20' <br />CROSS SECTION A -A' <br />LOADOUT AREA POND L2 <br />B <br />5255 <br />TOP OF <br />EMBANKMENT 12' <br />ELEV. 5248.5' <br />2/0' FREE OA RD <br />P1 <br />. <br />N <br />7 - <br />N. <br />5 <br />U-1 <br />W <br />LL –'d: <br />U-1 I / <br />0 <br />Q <br />3 <br />I <br />i <br />AL <br />ov r <br />0 I <br />STORAGE (ACRE -FEET) <br />STAGE / STORAGE CURVE <br />LOADOUT AREA POND L2 <br />A' <br />5255 <br />ti <br />Lai I.5' MIN. NA TURAL GROUND <br />5245 - -- <br />W PERIMETER BERM <br />SCALE: I" = 2' <br />5235 <br />TRAPEZOIDAL EMERGENCY SPILLWAY <br />INVERT ELEV. 5246' <br />18" CMP RISER <br />INV. ELEV. 5246.0' <br />NA TURAL GROUND - <br />25YR. /24HR. EVENT ELEV. 5246.40 <br />V F V IOYR. 124HR. EVENT <br />Q 5245 V — ELEV. 5245.69' <br />SEDIMEN T LEVEL <br />ELEV. 5243.08' <br />W - /0" 0' GATED DECANT <br />W -- l8" CMP INV. ELEV. 5243.08' <br />NATURAL GROUND POND BOTTOM ELEV. 5239.0' <br />5235 <br />HORIZONTAL SCALE: 1" 20' <br />CROSS SECTION B -B' <br />LOADOUT AREA POND L2 <br />�C/ mc A,:;: <br />i <br />5255 <br />ti <br />W <br />5245 ti <br />W <br />W <br />5235 <br />PERIMETER DITCH - DESIGN DETAILS <br />FLOW RATE (C.F.S.) <br />MANNINGS (N) - <br />CHANNEL SLOPE ( %) <br />FLOW DEPTH (Ft.) <br />VELOCITY (F.P.S.) <br />NA TURAL GROUND <br />i <br />1.3' MIN. <br />- -- -- -- -- RIPRAP AS REQUIRED <br />FOR EROSION PROTECTION <br />A <br />PERIMETER DITCH TYPICAL SECTION <br />NO SCALE <br />2 <br />POND BOTTOM <br />SEDIMENT 8 PERMANENT POOL LEVEL <br />F]"161rZV7b9 %� i1IIIIIIIIIIIII <br />�c <br />1 .49 <br />STORAGE CAPACITY TABLE <br />LOADOUT AREA POND L2 <br />APPROX /MA TE <br />- EMBANKMENT FREEBOARD <br />SURFACE <br />- -RIPRAP <br />BW (WHERE REOU /RED) <br />TYPICAL CHANNEL SECTION <br />POND L2 EMERGENCY SPILL WAY - DESIGN DETAIL <br />Permit Number 6-Off —0tv <br />Class: ennit �// t A� <br />_Se_ctio _ uhibit: _ - - -Vd1 y /6 -h_ <br />Class: 3 Revision <br />TYDe✓Se9: ------ _-------- - - - - - <br />- <br />Class: 0Report OHydro OGeneral <br />Doc Type: <br />DApplicatlon (Coal only) ❑ Bond D Enforcement O Inspection <br />NOTE: Refer to Map 13, "LOADOUT AREA SURFACE <br />AND GROUNDWATER HYDROLOGY ", For Struc- <br />ture Locations. <br />NOTE: All "Spillway Dimensions" Supplied by (Great <br />Divide Engineering 8 Surveying), April 9th, 1992. <br />1, Patrick G. \gkft- As.tl. ' % that this map <br />was preparecF rR9gsrvision and all <br />the informaf�,N resente . h eon is true <br />and correctg-f t fy knowledge <br />and informa%rd� ; ZZ <br />Dole Patrick orser, 60 P.E. 28431 <br />A AP 27 <br />. .6ai <br />_ <br />s� <br />-� <br />POND L2 EMERGENCY SPILL WAY - DESIGN DETAIL <br />Permit Number 6-Off —0tv <br />Class: ennit �// t A� <br />_Se_ctio _ uhibit: _ - - -Vd1 y /6 -h_ <br />Class: 3 Revision <br />TYDe✓Se9: ------ _-------- - - - - - <br />- <br />Class: 0Report OHydro OGeneral <br />Doc Type: <br />DApplicatlon (Coal only) ❑ Bond D Enforcement O Inspection <br />NOTE: Refer to Map 13, "LOADOUT AREA SURFACE <br />AND GROUNDWATER HYDROLOGY ", For Struc- <br />ture Locations. <br />NOTE: All "Spillway Dimensions" Supplied by (Great <br />Divide Engineering 8 Surveying), April 9th, 1992. <br />1, Patrick G. \gkft- As.tl. ' % that this map <br />was preparecF rR9gsrvision and all <br />the informaf�,N resente . h eon is true <br />and correctg-f t fy knowledge <br />and informa%rd� ; ZZ <br />Dole Patrick orser, 60 P.E. 28431 <br />A AP 27 <br />. .6ai <br />