Analysis - Failure NOAA 24-hr D 2 YR-C Rainfall=3.42" Prepared by Civil Core Consulting Printed 12/19/2025 HydroCAD® 10.20-8a s/n 13637 © 2025 HydroCAD Software Solutions LLC Page 23
Hydrograph for Subcatchment 8S: DA-P1 IMPERVIOUS
Time (hours)Precip. (inches)Perv.Excess (inches)Imp.Excess (inches)Runoff (cfs)
0.000.000.000.000.00
2.000.080.000.010.01
4.000.180.000.060.01
6.000.290.000.140.02
8.000.440.000.270.03
10.000.680.000.480.06
12.001.640.001.420.78
14.002.740.002.510.07
16.002.980.002.740.04
18.003.130.002.900.02
20.003.240.003.010.02
22.003.340.003.100.02
24.003.420.003.190.02
26.003.420.003.190.00
28.003.420.003.190.00
30.003.420.003.190.00
32.003.420.003.190.00
34.003.420.003.190.00
36.003.420.003.190.00
38.003.420.003.190.00
40.003.420.003.190.00
42.003.420.003.190.00
44.003.420.003.190.00
46.003.420.003.190.00
48.003.420.003.190.00
50.003.420.003.190.00
52.003.420.003.190.00
54.003.420.003.190.00
56.003.420.003.190.00
58.003.420.003.190.00
60.003.420.003.190.00
62.003.420.003.190.00
64.003.420.003.190.00
66.003.420.003.190.00
68.003.420.003.190.00
70.003.420.003.190.00
72.003.420.003.190.00