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<br />• <br />• <br />Table 19-2: New Elk Post Mine Drainage: ; .. <br /> <br /> <br />Ditch <br />100-Year 24-Hour <br />:.. Discha a cfs ... <br />~'S ( ) ;. .... <br /> <br />Sloe <br />P (°) <br /> <br /> <br />:: Type':.:.. <br /> <br /> <br />hape]}::. <br /> <br /> <br />Depth:(ft): ; <br />DlA 68 39 27" Riprap 6' Trap 0.43 <br />D1B 68 3.9 12" Riprap 6' Trap 1.11 <br />D2A 36.76 35 18" ltiprap 6' Trap 0.38 <br />D2B 36.76 5.2 9" Riprap 6' Trap 0.82 <br />D3A 52.89 27 18" Riprap 6' Trap 0.61 <br />D3B 52.89 5 9" Riprap 6' Trap 0.98 <br />D3C 52.89 18 15" ]tiprap 6' Trap 0.76 <br />D3D 52.89 5 9" liiprap 6' Trap 0.98 <br />D4A 230.11 3 21" ltiprap 6' Trap 1.75 <br />DS 136.34 4.3 IS" Riprap 6' Trap 1.49 <br />D6 241.44 1.6 21" ltiprap 6' Trap 1.77 <br />D7 55.98 2.5 9" ]tiprap 6' Trap 1.01 <br />D8 35.22 12.9 12" Riprap 6' Trap 0.70 <br />D9 21.29 3.8 Earthen 8' Trap 0.75 <br />D10 123.39 3.2 15" Riprap 6' Trap 1.44 <br />Dl 1 248.99 1.5 15" Riprap 12' Trap 1.60 <br />D12A 94.43 12.5 12" Riprap 12' Trap 0.88 <br />D12B 94.43 3 12" Riprap 6' Trap 1.29 <br />D13 149.71 1.4 12" Riprap 10' Trap 1.29 <br />D 14A 47.65 19 12" Riprap 8' Trap 0.66 <br />D14B 47.65 1.25 Earthen 6' Trap 1.39 <br />D I S 108.2 1.6 12" Riprap 8' Trap 1.24 <br />D16A 98.66 18 21" ltiprap 6' Trap 0.95 <br />D 16B 98.66 9.9 12" ltiprap 8' Trap 1.07 <br />' Riprap size refers to Dom; see specific designs for D10 and D,,,,x. Riprap thickness is 1.5'Dso <br />Z Dimension is bottom width. See specific designs for top width. <br />' Sideslopes are 3:1 (H:u) <br />