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7000 <br />6900 <br />6800 <br />z <br />0 <br />> 6700 <br />W <br />J <br />w <br />6600 L <br />0 <br />500 <br />DISTANCE (FT) <br />SlI PM-i CHANNEL PROFILE <br />d <br />i <br />V <br />O <br />LL <br />°< <br />x <br />SCALE <br />too' o too' ear <br />nowzoNT,u a vExncAl <br /> <br />Channel DBaIGn Flaw <br />O. Icfal <br />19 entl 121 Sloe <br />I~ Bottom Wltlih <br />IBWI <br />Iftl Sltle Slopa <br />IHaV1 Oepih of <br />Flow IDI IRI <br />131 Valoclty <br />Itpal <br />l61 FroaGOartl <br />Ittl Totel Depth <br />Iftl Ripfe D <br />IPnI 50 <br />PM-1 H9 1 f0 3 J.B 4.59 0.3 1J 9 <br /> n9 2-JO tU 3 0.9 n.d9 0.3 L2 17 <br />PM-1 IJe t 13 ] 2.2 0.90 0.3 25 Veg <br />lLa wart <br />l5) !]l lBl <br />LGw> R <br />2.7~ 7.7% <br />5.9% <br />1.2% <br />I <br />2500 3000 3500 4000 45n11 srv <br />1000 <br />DISTANCE (FT) <br />1500 <br />2000 <br />REc~O~~~ <br />JUN ~ 4 X004 <br />Diviaian afMineral <br />2500 <br />sand 6eni~Y <br />RIPRAP THICKNESS <br />TYPICAL RIPRAP LINED CHANNEL <br />NOT TO SCALE <br />FREEBOARD <br />GEOTEXTILE <br />/WHERE REQUIRED/ <br />NOTES: <br />tl CHANNEL WAS ORIGINALLY DES/GNED TO SAFELY CONVEY RUNOFF RESULTING FROM THE <br />10 YEAR, 24 HOUR STORM EVENT, WITH PARTIALLY DISTURBED CONDITIONS (19981. <br />2.l DESIGN FLOW ROUNDED TO NEAREST WHOLE CFS FROM SEDCAD HYDROLOGIC ANALYSIS. <br />3.1 DEPTH OF FLOW BASED ON M/N/MUM GRADE. <br />4.l VELOCITY BASED ON MAN/MUM GRADE. <br />5.1 Sll PM-1 LOWER IS FROM CULVERT 15A TO THE WADGE IMPOUNDMENT /APPROXIMATELY 1500'1. <br />6.1 GEOTEXTILE REQUIRED FOR D50 9" OR GREATER. <br />7.1 CHANNEL WAS DES/GNED TO SAFELY CONVEY RUNOFF RESULTING FROM THE <br />100 YEAR, 24 HOUR STORM EVENT. <br />8.l THE OR/G/NAL SED/MOT ll MODEL (ACZ 79981 WAS CONVERTED TO SEDCAD 4 AND THE ENTIRE <br />RECLAIMED PORTION OF THE WATERSHED WAS ASSIGNED A CURVE NUMBER /CHI OF 62. <br />7000 <br />6900 <br />z <br />6800 <br />w <br />J <br />6700 w <br />6600 <br />.9 <br />PROFESSIONAL ENGINEER'S STATEMENT <br />1, Donfel % Keuscher, sJo PM-l Lower <br />channel design was pr ~a~ supervision <br />and ol/ Jhe informal' NN/.~,2 's true <br />and correct l0 1he ~d~y~yl(Fiaev:O <br />and Jn/ormolion. ~~ ~~ii '__ , <br />QS /T 2Cx,4 <br />Dole Don -A rCeusr. -r. CO F RRn <br />a rn.se avor w;.wen.r ae..w px.wmw <br />a m.u vuE xESrovsra Pne r tavern r twee r Ewoa <br />e ms s ene xmw:r a erw r. traon <br />o rev ene a eX.X. aea.~ c t.lern <br />Ho~ NEV140N5 paiE <br />_ DFy4N BY LR1WH 9Y N E ED •XD <br />ESI6NE0 BY <br />SENECA COAL <br />COMPANY <br />TITLE: <br />CHANNEL PM-1 <br />PROF/LE <br />®Te~~aMat~lx sh°°' +otaasneet <br />MONTG011ENY WATSON SCALE E%hlelT No. <br />1iIFP GrwP ~e &on 1 YO <br />