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TABLE 4 <br />CONTINUED <br />~ PIAXWELL MINE <br />DRAINAGE. STRUCTURES FOR DISTURBED RUNOFF <br />MINE SITE DRAINAGES TO POND 004 <br /> <br /> <br />CHANNE <br /> <br />L I <br /> <br />N-FLOW <br /> <br />SHAPE <br />DIMENSIONS <br />DEP TOP BOTOMI <br />SLOPE LENGTH <br />X FT <br />MAN. <br />N0. <br />FLOW <br />CFS 10-YR PEAK <br />FLOW DEPTH VEL <br />CFS FT FPS <br />DITCH 6 004-1 TRI 1.0 12.0 0.0 2.0 980 0.04 19.7 13.2 0.9 3.0 <br />DITCH 7 004-2 TRAP 2.0 5.0 2.0 1.6 730 0.04 32.9 4.7 0.7 2.8 <br />CMP-9 D.7 CIRC 1.5 18.0 35 0.024 24.1 4.7 0.5 10.6 <br />CMP-4 D.6 <br /> CMP-9 <br /> 004-3 CIRC 2.0 (SEE CALCULATIONS) 325 0.024 26.6 19.4 2.0 8.5 <br />DITCH 6-1 CMP-4 TRAP 1.5 10.0 2.0 1.1 440 0.04 30.8 19.4 1.2 3.0 <br />• ~ DITCH 6-1 FLOWS INTO POND C04 <br />SPILLWAY 004 PARR 1.7 42.0 1.0 40 0.04 186.1 19.4 0.6 2.0 <br />CMP-5 CORRIGATED METAL PIPE CULVERT <br />DITCH 5 / <br />D.5 DRAINAGE DITCH <br />003-4 DRAINAGE BASIN <br />003 SEDIMENTATION POND <br />23 <br />