V4 11 Stormwater Report Rev 3 1 26 2023

47 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 5 DA-3 (Impervious) Hydrograph type = SCS Runoff Peak discharge = 6.239 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 24,588 cuft Drainage area = 1.450 ac Curve number = 98 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 6.00 min Total precip. = 5.22 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran DA-3 (Impervious) Q (cfs) Q (cfs) Hyd. No. 5 -- 10 Year 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00

1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 5