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POWDER MAGAZINE EPHEMERAL CHANNELS <br />FLOW SUMMARY <br />Flows Flow CFS Reference <br />1 #1 Watershed 3.59 Page MISC-28 <br />2 CRDA-2 East U per Diversion Ditch 6.96 Page CRDA2-12a <br />3 #2 Watershed 0.99 Page MISC-28 <br />4 Roadside North West U er Diversion Ditch 3.33 Page RSN-39 <br />5 #3 Watershed 0.40 Page MISC-28 <br /> <br />Combined Flows -Reference Draw in Page MISC-25 <br /> Channels Flow CFS Flows <br /> #1 Watershed 12% 10.55 1+2 <br /> #1 Watershed 50% 10.55 1+2 <br /> #1 Watershed 8% 10.55 1+2 <br /> #2 Watershed 8% 14.87 1+2+3+4 <br /> Culvert Under Road 14.87 1+2+3+4 <br /> #3 Watershed 2% 15.27 1 +2+3+4+5 <br /> #3 Watershed 13% 15.27 1+2+3+4+5 <br /> <br />SIZE SUMMARY <br />CHANNELS ARE TRAPEZOIDAL WITH 3' BOTTOM AND 1.5H:1V SIDE SLOPES <br /> Channels De th D5o RipRap Size <br /> w/Freeboard <br /> #1 Watershed 12% 1.23 12" <br /> #1 Watershed 50% 1.11 18" <br /> #1 Watershed 8% 1.28 12" <br /> #2 Watershed 8% 1.34 12" <br /> Culvert Under Road N/A 24" Diameter <br /> #3 Watershed 2% 1.41 9" <br /> #3 Watershed 13% 1.28 15" <br />MISC-24 11 /07 <br />