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SNOWCAP COAL COMPANY, INC. <br />TABLE 13-4, <br />DRAINAGE CONTROL STRUCTURES <br />~J <br />I• <br />Structure Location Cross- Description <br /> Exhibit Section <br /> Exhibit <br />Permanent Diversion 51 53 Design capacity 965 cfs, erodible channel; <br />near CRDA No. 2, 0.2% grade, 40 ft wide; rip rap channel; 25% <br />Section F-F rade, 40 ft wide <br />Haul Road 4 Culvert 96 2 - 81 "x59" CMP <br />CRDA 1 Di Section 9B 6 - 36" CMP <br />UTL Di Section 76 6 - 30" CMP <br />RSN Di Section 8B 6 - 36" CMP Removed 2002 <br />COAL CANYON DRAINAGE <br />2 WEST PORTAL (EXHIBIT 58) <br />Structure Cross-Section <br />Exhibit Description <br />Permanent Relocation of <br />middle drainage area <br />channel 58 Design capacity 36.79 cfs, gradient 6% <br />North Culverts 2 - 18" CMP -Removed 2000 <br />Middle Culverts 2 - 24" CMP -Removed 2000 <br />South Culverts 12" CMP -Removed 2000 <br />T13-4-6 <br />(Rev 10/05) <br />