Text · page 725 of 1174
Read the whole document on one page (all 1174 pages, each with its own heading)
24-4113 WEST SENECA EXCHANGE EXISTING Type II 24-hr 100-Year Rainfall=5.23" Prepared by Carmina Wood Design Printed 7/13/2026 HydroCAD® 10.20-7a s/n 05019 © 2025 HydroCAD Software Solutions LLC Page 28 Time span=0.00-60.00 hrs, dt=0.01 hrs, 6001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1S: Existing - West Runoff Area=5.700 ac 21.93% Impervious Runoff Depth=3.48" Flow Length=160' Slope=0.0280 '/' Tc=20.6 min CN=84 Runoff=21.56 cfs 1.654 af Subcatchment 2S: Existing - Central Runoff Area=22.800 ac 87.72% Impervious Runoff Depth=4.76" Flow Length=2,297' Tc=12.7 min CN=96 Runoff=135.65 cfs 9.046 af Subcatchment 3S: Existing - East Runoff Area=27.100 ac 97.79% Impervious Runoff Depth=4.99" Flow Length=2,297' Tc=12.7 min CN=98 Runoff=163.64 cfs 11.275 af Link 4L: TOTAL EXISTING Inflow=317.14 cfs 21.975 af Primary=317.14 cfs 21.975 af Total Runoff Area = 55.600 ac Runoff Volume = 21.975 af Average Runoff Depth = 4.74" 14.12% Pervious = 7.850 ac 85.88% Impervious = 47.750 ac Page 725 of 1174