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Appendix B <br />Summary Coal Mine Waste Disposal Area Ditches and Culverts <br />Ditch Grade <br />Minimum Grade <br />Maximum Grade <br />RipRap <br />Peak <br />Min <br />Max <br />Depth <br />Velocity <br />Depth <br />Velocity <br />D5o InCh <br />Flow <br />Feet <br />Ft/Sec <br />Feet <br />Ft/Sec <br />cfs <br />F1 1 <br />4.2%1 <br />4.2%1 <br />0.421 <br />4.31 <br />0.421 <br />4.31 <br />16.73 <br />F2 1 <br />1.3%1 <br />1.3%1 <br />0.471 <br />2.61 <br />0.471 <br />2.61 <br />15.17 <br />F3 1 <br />4.4%1 <br />4.4%1 <br />0.341 <br />3.81 <br />0.341 <br />3.8 <br />3.83 <br />F4 1 <br />30.0%1 <br />30.0%1 <br />1.401 <br />14.01 <br />1.401 <br />14.01 <br />241 <br />38.17 <br />F5 1 <br />2.0%1 <br />2.0%1 <br />0.391 <br />2.91 <br />0.391 <br />2.9 <br />3.99 <br />F6 1 <br />1.1%1 <br />1.1%1 <br />0.401 <br />2.11 <br />0.401 <br />2.1 <br />3.93 <br />F7 1 <br />2.0%1 <br />2.0%1 <br />ITrapezoidal <br />Channel <br />1 <br />15 <br />37.95 <br />F7a 1 <br />33.0%1 <br />33.0%1 <br />1.201 <br />13.91 <br />1.201 <br />13.91 <br />241 <br />37.95 <br />F8 1 <br />4.6%1 <br />4.6%1 <br />0.371 <br />4.21 <br />0.371 <br />4.21 <br />1 <br />7 5.22 <br />F9 1 <br />30.0%1 <br />30.0%1 <br />0.101 <br />6.21 <br />0.101 <br />6.171 <br />12 <br />1.40 <br />F10 1 <br />2.2%1 <br />2.2%1 <br />0.541 <br />3.71 <br />0.541 <br />3.7 <br />9.63 <br />IF 11 1 <br />3.4%1 <br />3.4%1 <br />0.341 <br />3.41 <br />0.341 <br />3.41 <br />1 <br />3.56 <br />F12 1 <br />3.6%1 <br />3.6%1 <br />0.391 <br />3.81 <br />0.391 <br />3.8 <br />5.03 <br />F13 1 <br />2.0%1 <br />2.0%1 <br />1.541 <br />6.31 <br />1.541 <br />6.3 <br />22.28 <br />F14 (2 %) 1 <br />2.0%1 <br />2.0%1 <br />ITrapezoidal <br />Channel 1 <br />9 <br />11.73 <br />F14 (30 %) 1 <br />26.0%1 <br />26.0%1 <br />ITrapezoidal <br />Channel 1 <br />181 <br />11.73 <br />F15 1 <br />1.8%1 <br />1.8%1 <br />0.481 <br />2.71 <br />0.481 <br />2.74 <br />0.96 <br />F16 1 <br />10.0%1 <br />10.0%1 <br />1.301 <br />8.01 <br />1.301 <br />7.981 <br />181 <br />21.41 <br />F17 1 <br />1.0%1 <br />1.0%1 <br />0.681 <br />2.61 <br />0.681 <br />2.6 <br />2.14 <br />F18 1 <br />3.4%1 <br />3.4%1 <br />0.301 <br />3.11 <br />0.301 <br />3.11 <br />1 2.41 <br />F19 1 <br />2.9%1 <br />2.9%1 <br />0.501 <br />4.01 <br />0.501 <br />4.0 <br />8.88 <br />F20 1 <br />2.0%1 <br />2.0%1 <br />0.491 <br />3.31 <br />0.491 <br />3.3 <br />6.96 <br />F21 -1 1 <br />20.0%1 <br />30.0%1 <br />0.501 <br />7.51 <br />0.501 <br />7.51 <br />12 <br />11.09 <br />F21 -2 1 <br />30.0%1 <br />30.0%1 <br />0.90 <br />11-11 <br />0.901 <br />T1.11 <br />18 <br />11.59 <br />F22 1 <br />1.0%1 <br />1.0%1 <br />0.561 <br />2.31 <br />0.561 <br />2.31 <br />1 1.08 <br />F23 <br />1 1.3%1 <br />1.3%1 <br />0.211 <br />1.71 <br />0.211 <br />1.7 <br />0.12 <br />East Div. <br />1 2.0%1 <br />30.0%1 <br />ITrapezoidal <br />Channel <br />1 0 -18" <br />21.75 <br />W. Div #2 <br />1 4.0%1 <br />4.0%1 <br />0.40 <br />T6-F <br />0.401 <br />2.61 <br />1 3.37 <br />W. Div #1 <br />1 3.5%1 <br />3.5%1 <br />0.811 <br />4.31 <br />0.811 <br />4.3 <br />10.64 <br />Permanent Culvert: <br />F2130" <br />I <br />I <br />34.01 <br />F4130" <br />I <br />I <br />18.36 <br />[Temporary Culvert: <br />T -F1 30" Half Culvert <br />1 21.75 <br />T -F2 12" I <br />0.47 <br />T -F3 24" I <br />21.41 <br />T -F4 30" Half Culvert <br />4.74 <br />T -F5 30" Half Culvert <br />5.82 <br />Flow depth in feet does not include freeboard. <br />01/15 <br />TR -91 App. B -2 <br />