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Appendix B <br />Summary Coal Mine Waste Disposal Area Ditches and Culverts <br />Ditch Grade <br />Minimum Grade <br />IMaximum Grade <br />I RipRap <br />I Peak <br />Min <br />I Max <br />Depth <br />Velocity <br />Depth I Velocity <br />50 Inch <br />Flo <br />Feet <br />Ft/Sec <br />Feet I Ft/Sec <br />cfs <br />F1 <br />1 3.1%1 <br />3.1%1 <br />0.371 <br />3.41 <br />0.371 3.41 <br />4.10 <br />F2 <br />1 2.0%1 <br />2.0%1 <br />0.411 <br />2.91 <br />0.411 2.91 <br />4.39 <br />F3 <br />1 3.2%1 <br />3.2%1 <br />0.411 <br />3.71 <br />0.411 3.71 <br />1 5.66 <br />F4 <br />1 30.0%1 <br />30.0%1 <br />1.201 <br />12.81 <br />1.201 12.81 <br />241 <br />26.80 <br />F5 <br />1 2.0%1 <br />2.0%1 <br />0.371 <br />2.71 <br />0.371 2.71 <br />1 3.46 <br />F6 <br />1 2.0%1 <br />2.0%1 <br />0.381 <br />2.81 <br />0.381 2.81 <br />1 3.66 <br />F7 <br />1 2.0%1 <br />2.0%1 <br />ITrapezoidal <br />Channe-l------F <br />151 <br />33.44 <br />F7a <br />1 33.0%1 <br />33.0%1 <br />1.101 <br />13.51 1.101 13.51 <br />241 <br />33.44 <br />F8 <br />1 1.3%1 <br />1.3%1 <br />0.551 <br />2.91 0.551 2.91 <br />1 7.63 <br />F9 <br />1 42.0%1 <br />42.0%1 <br />ITrapezoidal Channel <br />1 91 <br />0.32 <br />IF 10 <br />1 2.0%1 <br />2.0%1 <br />0.521 <br />3.41 0.521 3.41 <br />1 8.18 <br />F11 <br />1 16.0%1 <br />16.0%1 <br />ITrapezoidal Channel <br />1 31 <br />8.72 <br />F12 <br />1 3.0%1 <br />3.0%1 <br />0.371 <br />3.31 0.371 3.31 <br />1 4.01 <br />IF 13 <br />1 2.0%1 <br />2.0%1 <br />1.701 <br />4.81 1.701 4.81 <br />31 <br />20.73 <br />F14 2% <br />2.0%1 <br />2.0%1 <br />ITrapezoidal Channel <br />1 91 <br />10.84 <br />F14 30% <br />30.0%1 <br />30.0%1 <br />ITrapezoidal <br />Channel <br />1 181 <br />10.84 <br />F15 <br />1 30.0%1 <br />30.0%1 <br />ITrapezoidal <br />Channel-----F <br />91 <br />1.10 <br />F16 <br />1 10.0%1 <br />10.0%1 <br />ITrapezoidal <br />Channel <br />F 151 <br />19.89 <br />F17 <br />1 1.0%1 <br />1.0%1 <br />0.601 <br />2.61 <br />0.601 2.61 <br />1 2.56 <br />IF 18 <br />1 3.2%1 <br />3.2%1 <br />0.341 <br />3.31 <br />0.341 3.31 <br />1 3.46 <br />F19 <br />1 3.0%1 <br />3.0%1 <br />0.491 <br />4.01 <br />0.491 4.01 <br />1 8.65 <br />F20 <br />1 2.0%1 <br />2.0%1 <br />0.451 <br />3.11 <br />0.451 3.1112 <br />to 18 <br />1 5.66 <br />F21 -1 <br />1 20.0%1 <br />30.0%1 <br />0.501 <br />7.51 <br />0.501 7.51 <br />121 <br />3.46 <br />F21 -2 <br />1 30.0%1 <br />30.0%1 <br />0.901 <br />11.11 <br />0.901 11.11 <br />181 <br />17.89 <br />East Div. <br />1 2.5%1 <br />5.0%1 <br />ITrapezoidal <br />Channel <br />1 91 <br />13.26 <br />W. Div #2 <br />1 3.5%1 <br />3.5%1 <br />0.601 <br />3.51 <br />0.601 3.51 <br />1 4.64 <br />22.0%1 <br />22.0%1 <br />ITrapezoidal <br />Channel <br />7 121 <br />4.64 <br />W. Div #1 <br />1 3.5%1 <br />3.5%1 <br />0.781 <br />4.11 <br />0.781 4.11 <br />1 9.19 <br />Culvert: <br />F2142" <br />(in-place) <br />31.58 <br />F4124" <br />1 <br />17.89 <br />Flow depth in feet does not include freeboard. <br />TR -76 App. B -2 12/12 <br />