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L J <br />LJ <br />PHASE 1 INITIAL PAD 8 COLLECTION <br />Prepared by Greg Lewicki & Associates <br />Type 11 24-hr Rainfall=2.90" <br />Page 7 <br />Reach G1,a: INITIAL COLLECTION DITCH <br />Inflow Area = 1.610 ac, Inflow Depth = 1.81" <br />Inflow = 4.99 cfs @ 11.96 hrs, Volume= 0.243 of <br />Outflow = 4.78 cfs @ 11.99 hrs, Volume= 0.243 af, Atten= 4%, Lag= 1.7 min <br />Routing by Stor-Ind+Trans method, Time Span= 1.00-30.00 hrs, dt= 0.05 hrs <br />Max. Velocity= 7.53 fps, Min. Travel Time= 1.0 min <br />Avg. Velocity = 2.65 fps, Avg. Travel Time= 2.8 min <br />Peak Storage= 294 cf @ 11.98 hrs, Average Depth at Peak Storage= 0.57' <br />Bank-Full Depth= 0.75', Capacity at Bank-Full= 10.23 cfs <br />0.00' x 0.75' deep channel, n= 0.022 Earth, clean & straight <br />Side Slope Z-value= 2.0 'P Top Width= 3.00' <br />Length= 450.0' Slope= 0.0778 'P <br />Inlet Invert= 7,082.00', Outlet Invert= 7,047.00' <br />Reach G1,a: INITIAL COLLECTION DITCH <br />Hydrograph <br />u <br />° <br />LL <br />Inflow Area=1.610 ac <br />Inflow=4.99 cfs <br />Outflow=4.78 cfs <br />Avg. Depth=0.57' <br />Max Vet=7.53 fps <br />n=0.022 <br />L=450.0' <br />S=0.0778 '/' <br />Capacity=10.23 cfs <br />I• <br />1 7 3 d F A 7 A A to tt 17 13 1d 1A to 17 to 14 9n 71 99 93 9d 75 7A <br />T~1IIB I~10UIE) <br />Inflow <br />- 0°MOw <br />