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~~~ <br />HillsSECU Type l! 24-hr Rainfall=5.38" <br />Prepared by Titan Atlantic ~ Page 2 <br />H}„~~„r~ann ~ nn c/n 002026 ©1986-2001 Applied Microcomputer Systems 3/17/2003 <br />Subcatchment 1 S: New Land Pre-Developed <br />Runoff = 4.38 cfs @ 12.14 hrs, Volume= 0.338 of <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs <br />Type {I 24-hr Rainfall=5.38" <br />Area (sf) CN Description ~ _ <br />8,725 98 impervious <br />60,267 77 Weighted Average <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />_ <br />19.5 200 0.0315 0.2 Sheet Flow, <br /> Grass: Dense n= 0.240 P2= 3.60" <br />0.8 150 0.0413 3.3 Shallow Concentrated Ftow, <br /> Unpaved Kv= 16.1 fps <br />0.2 50 0.0550 4.8 Shallow Concentrated Flow, <br /> Paved Kv= 20.3 fps <br />0.8 90 0.0678 1.8 Shallow Concentrated Flow, <br /> Short Grass Pasture Kv= 7.0 fps <br />21.3 490 Total <br />Subcatchment 4 S: New Land Pre-Developed <br />Hydrograph Plot <br />N <br />V <br />O <br />11. <br />. n ~ i ~ <br />,. • r c -~ e 0 in 11 19 iZ id 1S 1R 17 7R 19 9n 71 <br />4.36 cfs <br />~ i... -•--. - - - ~ --. -. - - --- - - - - - - .- •- --. <br />. ; <br />1 7 ~ ~ ~ _ -. .._.- .- _ .. . . . . . .. .. .. . . <br />- Runoff <br /> <br />