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5.2.-5.4. PCSR 09-13-2011
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5.2.-5.4. PCSR 09-13-2011
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9/9/2011 2:18:23 PM
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9/8/2011 2:35:20 PM
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T:\0742\1406\June11 CityApp\Surface Water\ <br />ER Landfil{ 06_2011-dead storage affect Type II 24-hr 25 yr Rainfall=4.70" <br />Prepared by Wenck Associates, Inc. Printed 8/15/2011 <br />HydroCAD® 9.10 s/n 02201 ©2010 HydroCAD Software Solutions LLC Page 14 <br />Summary for Subcatchment 7: 7 <br />Runoff = 28.76 cfs @ 12.05 hrs, Volume= 1.735 af, Depth= 2.37" <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.02 hrs. <br />Type li 24-hr 25 yr Rainfall=4.70" <br />Area (sfl CN Description <br />382,086 77 Top of Landfill <br />382,086 100.00% Pervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />9.0 540 1.00 Direct Entry, <br />0.1 80 9.00 Direct Entry, <br />4.0 600 2.50 Direct Entrv. <br />13.1 1,220 Total <br />Subcatchment 7: 7 <br />Hydrograph <br />30 2$.76 CfS ~.. - ~ - ~_ _ _, - ~ _ ~-- _ _ ~ _ _ ~_ ~ Runoff <br />Type' II 24-hr 25 ~r <br />' Rainfall=x.70" ' <br />25 <br />_ _; ~ ~ 'Runoff Area=382 086sf <br />-- _ __. __ <br />20 ~ ',Runoff Volume=1.75 of j <br />~ ~ ~ ~ , <br />~~ I i 1 ~ I <br />-, - -Runoff Deptfa- .3T" , <br />0 15 ~ ~ ~ Flow Length 1;,20' <br />~ ~ ~ ~ ~ c '1 <br />10 ~ ~ ~ T =1~3. mjn <br />CN=77 <br />5 <br />0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 <br />Time (hours) <br />
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