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CULVERT DESIGNS <br />Following is a Culvert Schedule indicating the design and constructed information. The <br />location of each culvert is shown on Exhibit 7-19, Postmining Drainage Control. <br /> <br />I`_~ <br />POSTMINE CULVERT SCHEDULE <br /> <br />Culvert # Peak Discharge <br />Icfsl'•2 Diameter Required <br />linchesl''2 Diameter Installed <br />(inches) <br />2A & 2AA 18.3' <br />1.02 30' <br />102 30 <br />3A 7.2 ' 42 ' 24 & 24 <br />9A 65.3 ' 48 ' 48 & 24 <br />12A 1.52 82 30 <br />13A 3.0' 18' 18 <br />15A 14.9 ' 72 ' 72 <br />18A 1.7 ` <br />1.02 24 ' <br />102 18 <br />19A 135.7 ' <br />2.3 2 60 ' <br />10' 60 <br />24A 0.5 ' <br />1.72 18 ' <br />102 18 <br />29A 6.9 ' 30 ' 30 <br />30A 7.1 ' 30 ' 30 <br />32A 3.6 ' 24 ' 30 <br />33A 7.4 ' 18 ' 18 <br />45A 12.4' <br />0.3 2 18' <br />4 ' 18 <br />47A 0.7 ' 24 ' 24 <br />62A 0.2' 4' 24 <br />A3 5.4 ' 30 ' 30 <br />A5 11.2' <br />0.44 ' 30' <br />62 30 <br />Notes: <br />1. Calculated based on disturbed conditions. <br />2. Calculated on existin reclaimed conditions <br />TR-36 <br />7-12-9 Revised 12/04 <br />