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POND No. 516 <br />PLAN VIEW <br />SCALE: 1" -20' <br />A <br />7440 -1 <br />z <br />a 7420 <br />W <br />J <br />W <br />ME <br />I� <br />i <br />i <br />TOP OF EMBANKMENT <br />ELEV. 7417.4' <br />25 YR / 24 HR EVENT <br />l.l' FREEBOARD ELEV. 7416.3' <br />2.4 <br />EMERGENCY SPILL WA Y <br />EL EV. 7415.4' <br />A7n r74" nF PnA/n - F/ FV 7410.0' <br />POND No. 516 <br />CROSS SECTION A -A ' <br />HORIZONTAL SCALE: 1"=20' <br />VERTICAL SCALE: 1 " -20' <br />APPROX /MA TE <br />EMBANKMENT <br />SURFACE <br />I l- <br />3 <br />1_ BIN -� <br />NO SCALE <br />FREEBOARD <br />6° _j I <br />3 <br />�RIPRAP <br />(WHERE REQUIRED/ <br />POND No. 516 <br />CHA NNEL DESIGN <br />f �C� i) <br />STORAGE <br />DESIGN <br />CHANNEL <br />BOTTOM <br />CAPACITY <br />(AC -FT) <br />FLOW <br />FREE- <br />0.0 <br />R/PRAP <br />CHANNEL <br />FLOW <br />SLOPE <br />WIDTH <br />MANAt <br />DEPTH, <br />BOARD <br />VELOCITY <br />050 <br />SECT /ON <br />/IFS/ <br />IX/ <br />8W/FT.) <br />N <br />D/FT/ <br />IF 7.) <br />1FPSl <br />/INCHES/ <br />EMERGENCY SPILLWAY CREST <br />30.09 <br />2.0 <br />5.0 <br />0.035 <br />0.88 <br />1.1 <br />4.5 <br />6 <br />EMERGENCY SPILLWAY OUTSLOPE <br />30.09 <br />50.0 <br />5.0 <br />0.035 <br />0.39 <br />1.0 <br />12.4 <br />18 <br />SOUTH INLET <br />10.79 <br />22.0 <br />3.5 <br />0.035 <br />0.33 <br />0.3 <br />7.2 <br />12 <br />NORTH INLET <br />1 5.99 <br />1 50.0 <br />1 3.0 <br />1 0.035 <br />1 O.I9 <br />1 0.3 <br />1 8.9 <br />IB <br />POND No. 516 <br />CHA NNEL DESIGN <br />f �C� i) <br />STORAGE <br />STAGE <br />ELEVATION <br />AFT) <br />AREA <br />(AC- ) <br />CAPACITY <br />(AC -FT) <br />COMMENTS <br />0.0 <br />7410.0 <br />0.17 <br />0.00 <br />1.0 <br />7411.0 <br />0.20 <br />0.18 <br />2.0 <br />7412.0 <br />0.22 <br />0.39 <br />_- <br />INACTIVE <br />3.0 <br />7413.0 <br />0.24 <br />0.62 <br />BOTTOM OF POND - ELEV. 7410.0' <br />THE ROCKCASTLE COMPANY <br />4.0 <br />7414.0 <br />0.26 <br />0.87 <br />ELEV 7415.4' <br />Approved By: <br />TEL <br />5.0 <br />7415.0 <br />0.29 <br />1.15 <br />5.4 <br />7415.4 <br />0.30 <br />1.27 <br />EMERGENCY SPILLWAY INVERT <br />6.0 <br />7416.0 <br />0.31 <br />1.45 <br />6.3 <br />7416.3 <br />0.31 <br />1.54 <br />25 YR / 24 HR EVENT <br />ACTIVE <br />7.0 <br />7417.0 <br />0.33 <br />1.76 <br />___74__T_ <br />4 <br />7417.4 <br />0.34 <br />1.90 <br />TOP OF EMBANKMENT <br />0 <br />7 <br />0 <br />5 <br />r <br />w 4 <br />cD <br />a <br />V) <br />3 <br />2 <br />0 <br />0 <br />POND No. 516 <br />CAPACITY TA BL E <br />A' B <br />r7440 7440, <br />0.25 0.50 0.75 1.00 1.25 LSO I. /5.00 <br />STORAGE (AC -FT) <br />POND No. 516 <br />S TA GE / STORAGE CURVE <br />7400 <br />tLS*ZWI <br />POND No. 516 <br />CROSS SECTION B -B' <br />HORIZONTAL SCALE.- 1 " -40' <br />VERTICAL SCALE: I " -40' <br />B' <br />r-7440 <br />z <br />0 <br />7420 � <br />w <br />J <br />W <br />7400 <br />RECEIVED <br />NOV 2 6 1991 <br />PROFESSIONAL EN9INE 'SML990 A TION <br />1, Mark S. Chalmers, cer, &SNa9p <br />was prepared under my supervision and all <br />the informationrX ��yyyy hereon is true <br />and correct o �Sf�S#{ my knowledge <br />�-• g. cKq .3 F� <br />and informa o51���b Lfi' °6 - <br />Dote S. Cho/ CO P.E.25657 <br />��Vu�sSln �i�ii [11G\S�� <br />25 YR / 24 HR EVENT / <br />ELEV. 74/6.3' <br />0 0 <br />TOP OF EMBANKMENT <br />F F <br />ELEV. 74174' <br />7420 j 7420 <br />I <br />DESIGN MODIFICATIONS <br />II /9I <br />_- <br />_-J I <br />w w <br />1.. 5 1.5 <br />5 <br />I BY <br />BOTTOM OF POND - ELEV. 7410.0' <br />THE ROCKCASTLE COMPANY <br />GRASSY CREEK COAL MINE No.l <br />EMERGENCY SPILL WAY <br />IScale: <br />A. N. <br />Date: <br />11191 <br />ELEV 7415.4' <br />7400 <br />tLS*ZWI <br />POND No. 516 <br />CROSS SECTION B -B' <br />HORIZONTAL SCALE.- 1 " -40' <br />VERTICAL SCALE: I " -40' <br />B' <br />r-7440 <br />z <br />0 <br />7420 � <br />w <br />J <br />W <br />7400 <br />RECEIVED <br />NOV 2 6 1991 <br />PROFESSIONAL EN9INE 'SML990 A TION <br />1, Mark S. Chalmers, cer, &SNa9p <br />was prepared under my supervision and all <br />the informationrX ��yyyy hereon is true <br />and correct o �Sf�S#{ my knowledge <br />�-• g. cKq .3 F� <br />and informa o51���b Lfi' °6 - <br />Dote S. Cho/ CO P.E.25657 <br />��Vu�sSln �i�ii [11G\S�� <br />ENGINEERING AND ENVIRONMENTAL SERVICES <br />STEAMBOAT SPRINGS, CO 80477 <br />I <br />DESIGN MODIFICATIONS <br />II /9I <br />TWS <br />MSC <br />No. <br />REVISION <br />DATE <br />I BY <br />CHKD <br />THE ROCKCASTLE COMPANY <br />GRASSY CREEK COAL MINE No.l <br />POND 516 DESIGN <br />IScale: <br />A. N. <br />Date: <br />11191 <br />Design By: Drawn By: <br />TEL TWS <br />Approved By: <br />TEL <br />AOZ <br />Inc AA/1O 4P d <br />ENGINEERING AND ENVIRONMENTAL SERVICES <br />STEAMBOAT SPRINGS, CO 80477 <br />