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~~ <br />7700 <br />7600 <br />z <br />0 <br />w 7500 <br />w <br />7400 <br />0 <br />I • <br />a 1 ,I, VEGETATION <br />yi2/oi~~\~iO~~Q \ ~ <br />o' {\ <br />~i~~~\:~i~oiT~i <br />TYPICAL V CHANNEL <br />NOT TO SCALE <br /> <br /> <br />7.1% 7.8% <br /> .99, 12.2% <br /> 5.5% 4.0% <br /> 11.0% <br /> 0.9% <br /> <br />soo looo <br />DISTANCE (FT) <br />Sll PM-21 CHANNEL PROFILE <br />lsoo <br /> Daeipn Flow Sloe <br />~ Bottom Wldib Sitla Slopa Dep1b of Velocity Freeboard Total Deptb Riprep DgD <br /> Cnsnnel O. Icia) I IBWI IH:N1 Flow ID! 1/tl Itpsl IiU INl Ilnl <br />FREEBOARD 19 121 AND 131 Iltl lal Isl <br /> <br /> PM41 1 d-13 0 3 0.8 iP 0.3 Lf NA. <br />O ~~ ~/~~~ NOTES: <br />,,~~. <br />~ 1.1 CHANNEL DESIGNED FOR EkIST/NG WORST CASE, VEGETATED, V-SHAPED COND/T/ONS. <br />2.1 CHANNEL WAS DES/GNED TD SAFELY CONVEY RUNOFF RESULT/NG FROM THE <br />f0 YEAR, 24 HOUR STORM EVENT. <br />3.l DES/GN FLOW ROUNDED TO NEAREST WHOLE CFS FROM SEDCAD HYDROLOGIC ANAL YS/S. <br />4.1 DEPTH OF FLOW BASED ON MlN/MUM GRADE. <br />5.1 VELOCITY BASED ON M.4X/MUM GRADE. <br />7700 <br />7600 <br />z <br />0 <br />7500 w <br />w <br />7400 <br />1924 <br /> <br />SENECA COAL <br />COMPANY <br />DRAWING TITLE: <br />CHANNEL PM-21 <br />PROF/LE <br />© M W H a~„. ?, G. 13 amei. <br />SCeLE OFaWiNG No <br />As Slw~rn ]-ZQ <br />SCAIE <br />IW• o loo• zoo• <br />Naazpxta a vERncAL <br />