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F 7300 <br />W <br />ssoo <br />SCALE <br />zoo• o zpo• 400• <br />HomzoNTAL s wencAL <br />r,~•E~ z L 2ooa <br />giviL''Dr, or f1~iretal, and Geology <br />RE~Eg~E~ <br />z <br />F 7100 <br />a <br />W <br />J <br />W <br />VEGETA <br />d <br />U <br />a <br />e° <br />i <br />U <br />1 <br />~~ 1 <br />H <br />TYPICAL V CHANNEL <br />NOT TO SCALE <br />FREEBOARD <br /> DaslBn Flow Sloe <br />~ BoliDm Witlth Sitle Slope Depth of Velocity FraeEOartl Total Depth RipreO D5o <br />Channel O. Ic7sl I <br />1 IBWI IH:NI Flow IDI Inl I7PS1 1711 I7t1 Iln) <br /> 111 antl 121 17fl 131 141 <br />PM-11 t0 2-f0 N/A 3 t0 2.0 0.3 13 Veg <br /> 1.0 11-t6 N/A 3 0.3 5,0 0.3 O6 Giavel <br />NOTES: <br />7.1 CHANNEL WAS DESIGNED TO SAFELY CONVEY RUNOFF RESUL TlNG FROM THE <br />70 YEAR, 24 HOUR STORM EVENT. <br />2.I DESIGN FLOW ROUNDED TO NEAREST WHOLE CFS FROM SEDCAO HYDROLOGIC ANAL YS/S. <br />3.1 DEPTH OF FLOW BASED ON M/N/MUM GRADE. <br />4.1 VELOCITY BASED ON MAXIMUM GRADE. <br />5.1 GEOTEXTILE REQUIRED FOR D50 9" OR GREATER. <br />7300 ~ <br />z <br />7100 <br />W <br />J <br />W <br />ssoo <br />'5 <br />PROFESSIONAL ENGINEER'S STATEMENT <br />/, Daniel J. Keuscher, channel <br />design was prepared ~ ~~~6 'sion and <br />al/ the informofion e~! ~ 0~ lrue <br />and correct to fh 6o~.~f m~vAe e <br />and informolion. ; ~ rf1; <br />// /7~0 4 :° 333 7 A• <br />Dote Donie aQ../reus• her..• .E. 3330 <br />-1 <br />SENECA COAL <br />COMPANY <br />OJECT: <br />SENECA // <br />AWING TITLE: <br />CHANNEL PM-1f <br />PROF/LE <br />© M W ~ sneer Ii DI 23 SMeI <br />SCALE: E%HI~BIIT,ENo <br />A. aM~n 7-20 <br />