ZB 22 13 2023 03 Drainage Statement

10 Hydrograph Summary Report Hydraflow Hydrographs by Intelisolve v9.1 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 4.116 1 725 15,194 ---- ------ ------ Existing Site (Impervious) 2 SCS Runoff 0.533 1 726 1,678 ---- ------ ------ Existing Site (Pervious) 3 Combine 4.640 1 725 16,871 1, 2 ------ ------ Existing Total 5 SCS Runoff 3.577 1 725 13,204 ---- ------ ------ Proposed Site (Impervious) 6 SCS Runoff 0.973 1 726 3,054 ---- ------ ------ Proposed Site (Pervious) 7 Combine 4.538 1 725 16,258 5, 6 ------ ------ Proposed Total 2023-04-03 2, 10, 100 yr.gpw Return Period: 10 Year Wednesday, Apr 5, 2023