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2012 Construction Revision Type 1124 -hr 100 -yr, 24 -hr Rainfall= 2.80" <br />Prepared by {enter your company name here} Printed 5/10/2012 <br />HydroCAD® 10.00 s/n 00604 © 2011 HydroCAD Software Solutions LLC Page 10 <br />Runoff <br />Area (ac) CN Description <br />3.310 94 Fallow, bare soil, HSG D <br />3.310 100.00% Pervious Area <br />2.3 720 Total <br />15y <br />14 <br />13 <br />12 <br />11 <br />10 <br />9 <br />N <br />8 <br />o 7; <br />LL <br />6- <br />5 <br />4= <br />3 _ <br />2: <br />11344 cfs <br />Summary for Subcatchment 2S: Area 2 <br />= 13.44 cfs @ 11.93 hrs, Volume= <br />Subcatchment 2S: Area 2 <br />Hydrograph <br />0.595 af, Depth= 2.16" <br />Runoff by SCS TR -20 method, UH =SCS, Time Span= 0.00 -80.00 hrs, dt= 0.01 hrs <br />Type II 24 -hr 100 -yr, 24 -hr Rainfall= 2.80" <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />1.2 60 0.4000 0.81 Sheet Flow, Initial <br />Fallow n= 0.050 P2= 1.40" <br />1.1 660 0.1500 10.19 101.93 Channel Flow, Channel <br />Area= 10.0 sf Perim= 12.0' r= 0.83' <br />n= 0.050 Earth, cobble bottom, clean sides <br />Type II 24 -hr <br />100 -yr <br />24 -hr Rainfall- 2.80" <br />Runoff Area =3.310 ac <br />Runoff Volume =0.595 of <br />Runoff Depth= 2.16" <br />Flow Length =720' <br />Tc =2.3 min <br />CN =94 <br />0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 <br />Time (hours) <br />I f . !...... noff <br />