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/4 <br /> PROJECT: 19TH AVE SITE <br /> DRAINAGE BASIN HYDROGRAPH DATA <br /> *Calculations based upon Stormshed Hydrograph Method software. <br /> RAINFALL DATA <br /> Event Precip(in) <br /> WQ 1.1200 <br /> 2 year 1.5500 <br /> 10 year 2.2500 ^� <br /> 100 year13.2500 <br /> DRAINAGE BASIN LANDCOVER AND DISCHARGE DATA <br /> Record Id:PRE <br /> Design Method SBUH Rainfall type TYPE1A <br /> Hyd Intv 10.00 min Peaking Factor 484.00 <br /> Abstraction Coeff 0.20 <br /> Pervious Area 0.95 ac DCIA 0.00 ac <br /> Pervious CN 85.00 DC CN 0.00 <br /> Pervious TC 48.48 min (DC TC 0.00 min <br /> Pervious CN Cale <br /> Description SubArea Sub cn <br /> Pasture I 0.95 ac 85.00 <br /> Pervious Composited CN(AMC 2) 85.00 <br /> Pervious TC Calc <br /> Type Description Length _ Slope Coeff Misc TT <br /> Sheet 'Pasture 236.00 ft 13.60% 10.4000 11.55 in 148.48 min <br /> ' Pervious TC { 48.48 min <br /> PRE Event Summary <br /> Event Peak Q(cfs) Peak T(hrs) Hyd Vol(acft) Area(ac) Method Raintype <br /> WQ 0.0148 9.67 0.0184 0.9500 SBUH TYPE1A <br /> 2 year 0.0427 8.67 0.0383 - 0.9500 SBUH TYPE1A <br /> 10 year 0.1081 8.50 0.0778 0.9500 SBUH TYPE1A <br /> 100 year I 0.2247 ' 8.17 ' 0.1425 0.9500 ' SBUH 'TYPE1A <br /> 11/17/2011 2:37 PM <br />