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7400 <br />w <br />~ 7300 <br />F <br />w <br />J <br />`'~ 7200 <br />6 7% UPPER <br />9.49, 9.5% <br />LOWER <br />319, <br />0 200 400 600 <br />DISTANCE (FT) <br />SlI PM-86 CHANNEL PROFILE <br />scnte <br />l oo~ o loo zoo' <br />HortlzoNTAL a y>=Rncw <br />LOWER EXISTING MEANDER DESIGN AND UPPER GRASS-LINED DESIGN <br />400 m <br />r <br />m <br />a <br />300 p <br />z <br />200 v <br /> Design Flow Slope Bottom Witlth Sitle Slope Dapth of Velocity Freeboertl Tolel Depth Riprep D60 <br />Ch <br />nel e I%1 IBwI IHnVI Flow <br />3 <br />1 lul a <br />I <br />l dtl htl Ilnl <br />lli 111 AND <br />(2i 1 <br />1 f <br />l <br />PM-86 Roughened <br />meander 10 /6-27 20 2 0.1 4.1 0.3 O.Q Spoil <br />PM-Bb <br />L0 a-10 1.0 2 0.8 1.1 0.3 ~ f Veg <br />Upper <br />NPfe: Sleep design modeled by SEDCAD4, Simons/OSM me MPd <br />LOWER AL 7ERNq TE STEEP RIPRAP DESIGN <br /> Daelpn Flow Slo~e Bottom Witlth Sltle Slope ~ Depth of Veloclty Freeboertl Total Depth Rlprep D50 <br />nel <br />Ch D <br />S IXI IBWI IHaVI Flow <br />3D1 Iltl 1 <br />1 <br />4 1711 Iftl Iinl <br />lll 111 <br />AND <br />121 1 1 <br />1 <br />PM-66 <br />Lower f0 20-31 a.0 3 0.1 na 0,3 0.0 g' <br />PROFESS/OVAL ENGINEER'S STA TEMENT <br />/, Donie/ J Keuscher, slo 's chonne/ <br />design wos prepored ~7f ZE~t/~ 'sion and <br />o// the inlormolion p eP• lrue <br />and correct to the ~~~iny ~4J~q <br />e <br />and inlormo lion. • <br />_• <br />:dam rn~ <br />~/~/7~ ~{ ~ u • <br />Dole Donie .one Scher, v 3330 <br />F <br />0 <br />U <br />RE~~~yE~ <br />r~., ~ ~ ~^~E7 <br />~.~~ <br /> <br />NOTES: <br />1.1 CHANNEL WAS DES/GNED TO SAFELY CONVEY RUNOFF RfSUL T/NG FROM THE <br />70 YEAR, 24 HOUR STORM EVENT. <br />Z.1 DESIGN FLOW ROUNDED TO NEAREST WHOLE CFS FROM SEDCAD HYDROLOGIC ANALYSIS. <br />3.I DEPTH OF FLOW BASED ON M/N/MUM GRADE. <br />4.1 VELOCITY BASED ON MAX/MUM GRADE. <br />5.1 VEGETATION LINED CHANNELS. USE GRASS M/XTURE. <br />TYPICAL LINED CHANNEL <br />NOT TO SCALE <br />_ .~. ~: <br />SENECA COAL <br />COMPANY <br />// <br />CHANNEL S//PM-86 PROF/LE <br />Sn•el B OI 23 Sneet <br />© M W H SCALE: - I KN1911 ~p <br />as SaoWn ].10 <br />