V4 11 Stormwater Report Rev 3 1 26 2023

54 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 9 DA-3 Hydrograph type = Combine Peak discharge = 17.48 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 72,050 cuft Inflow hyds. = 4, 5 Contrib. drain. area = 6.970 ac DA-3 Q (cfs) Q (cfs) Hyd. No. 9 -- 10 Year 18.00 18.00 15.00 15.00 12.00 12.00 9.00 9.00 6.00 6.00 3.00 3.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 9 Hyd No. 4 Hyd No. 5