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TABLE 4 <br /> CONTINUED <br /> MAXWELL MINE <br /> DRAINAGE STRUCTURES FOR DISTURBED RUNOFF <br /> MINE SITE DRAINAGES TO POND 004 <br /> 10-YR PEAK <br /> DIMENSIONS ISLOPE LENGTH MAN . FLOW FLOW DEPTH VEL <br /> CHANNEL IN-FLow SHAPE DEP TOP BOTOM % FT N0. CFS CFS FT FP <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 004 <br /> SPILLWAY 004 PARA 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 />