2025 12 19 Stormwater Report Rev 1

25 Hydrograph Summary Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2025 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow interval Peak volume hyd(s) elevation strge used Description (origin) (cfs) (min) (min) (cuft) (ft) (cuft) 1 SCS Runoff 9.365 6 732 41,572 ------ ------ ------ DA-1 Pervious 2 SCS Runoff 25.46 6 732 127,430 ------ ------ ------ DA-1 Impervious 3 SCS Runoff 0.964 6 732 4,279 ------ ------ ------ DA-2 Pervious 4 SCS Runoff 0.307 6 732 1,535 ------ ------ ------ DA-2 Impervious 5 Combine 34.83 6 732 169,002 1, 2, ------ ------ DA-1 Combined 6 Combine 1.271 6 732 5,815 3, 4, ------ ------ DA-2 Combined Existing - Future Projected.gpw Return Period: 100 Year Tuesday, 12 / 23 / 2025