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Runoff Calculations <br /> 25 Year, 24 Hour Storm <br /> SBUH Method <br /> Drainage Area: Post-Deveioped Broadway Parking Lot <br /> Hyd Method: SBM Hyu Loss Method; SCS CN Number <br /> Peak Factor: 454.00 SOS Abs: 020 <br /> S arm Our 24.00 firs <br /> Area ON TC <br /> Pervious 0.3100 ac 86.00 0.09 hrs <br /> Impervious 2.7900 ac 98.00 0.05 hrs <br /> Total 3.1000 ac <br /> Supporting Data: <br /> Pervious ON Data: <br /> Landscape 86.00 0.3100 ac <br /> impervious ON Data: <br /> Pavement 98.00 2.7900 ac <br /> Pervious TO Data: <br /> Flow type: Description: Length: Slope: Coeff: Travel Time <br /> Sheet Landscape to Asphalt 40.00 f 3.00% 0.1500 5.68 min <br /> imPervious TO Data: <br /> Time of Concentration: 2.82 min <br /> 25 yr Flow Time Volume <br /> Summary: 1.8084 cls 7.83 hrs 25503.06 c{-0.5855 acft <br /> Drainage Area: Post-Deveioped Broadway Parking Lot B <br /> Hyd Method: SBUH Hyd Loss Method: SCS CN Number <br /> Peak Factor. 484.00 SCS Abs: 0.20 <br /> Storm Dur 24.00 hrs <br /> Area CN TC <br /> Pervious 0.3300 ac 86.00 0.03 hrs <br /> impervious 2.9700 ac 98.00 0.05 hrs <br /> Total 3.3000 ac <br /> Supporting.Data: <br /> Pervious ON Data: <br /> Landscape 86.00 0.3300 ac <br /> impervious ON Data: <br /> Pavement 98.00 2.9700 ac <br /> Pervious TO Data: <br /> Time of Concentration- 1.67 min <br /> imPervious TO Data: <br /> Time of Concentration: 2.84 min <br /> 25 yr Flow Time Volume <br /> Summary: 1.9355 cfs 7.83 hrs 27149.20.cf-0.6233 acft <br />