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Peabody Sage Creek Mine - Drainage and Sediment Control Plan <br />• <br />• <br />TABLE 2.05.3 -E2 -11 <br />Operational Culvert Schedule <br />Culvert No. <br />Design Peak Discharge' <br />cfs <br />Design Diameter <br />inches <br />Diameter Installed <br />inches <br />2A & 2AA <br />18.3 <br />30 <br />30 <br />9A <br />65.3 <br />48 <br />48 & 24 <br />12A <br />1.5 <br />8 <br />30 <br />13A <br />3.0 <br />18 <br />18 <br />15A 2,1 <br />60.2 <br />(3 )72 <br />72 <br />18A <br />1.7 <br />24 <br />18 <br />29A <br />6.9 <br />30 <br />30 <br />30A <br />7.1 <br />30 <br />30 <br />31A <br />1.3 <br />12 <br />18 <br />32A <br />3.6 <br />24 <br />30 <br />33A <br />1.4 <br />18 <br />18 <br />45A <br />12.4 <br />18 <br />18 <br />47A <br />0.7 <br />24 <br />24 <br />52A <br />32.0 <br />2.6 <br />12 <br />53A <br />12.1 <br />0.9 <br />12 <br />54A <br />0.3 <br />18 <br />18 <br />55A <br />0.9 <br />18 <br />18 <br />56A <br />0.5 <br />18 <br />18 <br />59A <br />4.0 <br />18 <br />18 <br />62A <br />0.2 <br />4 <br />24 <br />64A <br />Al <br />0.9 <br />24 <br />24 <br />A3 <br />5.4 <br />30 <br />30 <br />A4 <br />0.6 <br />12 <br />12 <br />AS <br />11.2 <br />30 <br />30 <br />A8 <br />0.9 <br />24 <br />24 <br />SC -1 <br />1.1 <br />8 <br />24 <br />SC -2 <br />5.5 <br />18 <br />24 <br />SC -3 <br />3.1 <br />12 <br />24 <br />SC -4 <br />9.4 <br />21 <br />24 <br />SC -5 <br />20.1 <br />30 <br />(2 )24 <br />SC -6 <br />2.9 <br />12 <br />24 <br />SC -7 <br />19.7 <br />30 <br />(2 )24 <br />SC -8 <br />23.6 <br />30 <br />(2 )24 <br />SC -9 <br />6.5 <br />18 <br />2 18 <br />SC -10 <br />18.2 <br />120 <br />(4 )60 <br />SC -11 <br />9.3 <br />84 <br />(3 )48 <br />SC -12 <br />13.5 <br />84 <br />(3 )48 <br />Notes: 1) Design based on 10 -year, 24 -hour storm event peak runoff unless otherwise noted. <br />2) Re- designed for the Peabody Sage Creek Mine operations plan. <br />3) Designed for the 25-year, 24 -hour storm event peak runoff. <br />2.05.3 -E2.23 <br />