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Peabody Sage Creek Mine - Drainage and Sediment Control plan <br />TABLE 2.05.3 -E2 -7 <br />Postmine Channel Design Schedule <br />Ditch <br />Seneca II Mine <br />Design Flow <br />cfs ''Z <br />Postmine <br />Design Flow <br />cfs s <br />Sloe <br />( %) <br />Bottom <br />Width <br />ft <br />Side <br />Slope <br />H:1 <br />n g <br />Design <br />Velocity <br />(fps) ° <br />Flow Depth <br />ft s <br />Design Depth <br />(ft )6 <br />Lining Type 7'6'9 <br />PM -1 <br />134 <br />113 <br />0.3 -1.7 <br />1.8-4.2 <br />18 <br />3 <br />5.0 <br />6.5 <br />2.7 <br />1.1 <br />3.0 <br />1.4 <br />Vegetated <br />D50 = 6" <br />PM -2 <br />1.0 <br />1.0 <br />5.0-24 <br />V -ditch <br />3 <br />2.9 <br />0.9 <br />1.2 <br />Vegetated <br />PM -3 Upper 10 <br />n/a <br />1.0 <br />6.0-20 <br />V -ditch <br />3 <br />2.7 <br />0.8 <br />1.1 <br />Vegetated <br />PM -3 Middle <br />n/a <br />1.0 <br />7.0-13 <br />V -ditch <br />3 <br />2.3 <br />0.8 <br />1.1 <br />Vegetated <br />PM -3 Lower <br />1.0 <br />1.0 <br />4.0-37 <br />V -ditch <br />3 <br />3.5 <br />0.9 <br />1.2 <br />Vegetated <br />PM -4 Upper <br />17.4 <br />1.0 <br />6.9-11.1 <br />11.2 -19.6 <br />2 <br />3 <br />6.0 <br />6.6 <br />1.4 <br />0.7 <br />1.7 <br />1.0 <br />Vegetated <br />D50 =9" <br />PM -4 Middle <br />40.8 <br />1.0 <br />13-20 <br />21-30 <br />31 -33 <br />10 <br />3 <br />13.8 <br />20.6 <br />23.6 <br />0.4 <br />0.3 <br />0.2 <br />0.7 <br />0.6 <br />0.5 <br />D50 = 9" <br />D51 = 12" <br />D50 = 15" <br />PM -4 Lower 15 <br />61.2 <br />1.0 <br />6.0-10 <br />10 <br />3 <br />10.5 <br />0.5 <br />0.8 <br />D50 = 9" <br />PM -5 <br />2.0 <br />1.5 <br />1.0-14.5 <br />2 <br />3 <br />2.1 <br />1.0 <br />1.3 <br />Vegetated <br />PM -6a <br />1.0 <br />1.0 <br />8.0-27 <br />5 <br />3 <br />3.6 <br />0.1 <br />0.4 <br />Gravel <br />PM -6b <br />1.0 <br />1.0 <br />9.0-27 <br />5 <br />3 <br />3.6 <br />0.1 <br />0.4 <br />Gravel <br />PM -6 Upper <br />23 <br />1.0 <br />6-7 <br />8 -10 <br />2 <br />3 <br />6.4 <br />6.6 <br />0.9 <br />0.8 <br />1.2 <br />1.1 <br />D50 = 6" <br />1350 =9" <br />PM -6 Middle <br />29 <br />1.0 <br />4-5 <br />6 -20 <br />2 <br />3 <br />6.1 <br />8.0 <br />1.0 <br />0.9 <br />1.3 <br />1.2 <br />D50 = 6" <br />D50 =9" <br />PM -6 MidMid <br />36 <br />1.0 <br />2-5 <br />5.1 - 19 <br />2 <br />3 <br />6.5 <br />8.5 <br />1.3 <br />1.1 <br />1.6 <br />1.4 <br />D50 = 6" <br />D50 = 9" <br />PM -7 <br />3 <br />1.0 <br />5 -15 <br />V -ditch <br />3 <br />2.6 <br />1.1 <br />1.4 <br />Vegetated <br />PM -9 <br />1.1 <br />1.0 <br />1.0-8.0 <br />V -ditch <br />3 <br />1.9 <br />1.2 <br />1.5 <br />Vegetated <br />PM -10 <br />1.0 <br />1.0 <br />4.0-13.9 <br />V -ditch <br />3 <br />2.5 <br />0.9 <br />1.2 <br />Vegetated <br />PM -11 <br />1.0 <br />1.0 <br />2-10 <br />11 - 16 <br />V -ditch <br />3 <br />2.0 <br />5.0 <br />1.0 <br />0.3 <br />1.3 <br />0.6 <br />Vegetated <br />Gravel <br />PM -12 Upper <br />1.0 <br />1.0 <br />2-10 <br />10.1 - 18 <br />2 <br />3 <br />1.7 <br />4.2 <br />0.8 <br />0.1 <br />1.1 <br />0.4 <br />Vegetated <br />Gravel <br />PM -12 Lower <br />1.4 <br />1.5 <br />5.0-20 <br />2 <br />3 <br />2.7 <br />0.7 <br />1.0 <br />Vegetated <br />PM -14 <br />1.0 <br />1.0 <br />3.0-30 <br />2 <br />3 <br />5.0 <br />0.2 <br />0.5 <br />Gravel <br />PM -15 <br />1.0 <br />2.8 <br />1.0-6 <br />2 <br />3 <br />2.3 <br />1.4 <br />1.7 <br />Vegetated <br />PM -16 <br />9.0 <br />1.0 <br />10-21 <br />22-25 <br />2 <br />3 <br />6.5 <br />6.6 <br />0.5 <br />0.4 <br />0.8 <br />0.7 <br />1350 = 6" <br />D50 = 9" <br />TR -03 2.05.3 -E2.16 Revised 04/12 <br />