2025 02 Drainage Statement Signed

2025-01 HydroCAD NOAA 24-hr D 100-Year Rainfall=8.66" 2025-01 HydroCAD NOAA 24-hr D 100-Year Rainfall=8.66" Prepared by Dynamic Engineering Printed 2/21/2025 Prepared by Dynamic Engineering Printed 2/21/2025 HydroCAD® 10.20-6a sin 08640 © 2024 HydroCAD Software Solutions LLC Page 46 HydroCAD® 10.20-6a sin 08640 © 2024 HydroCAD Software Solutions LLC Page 47 Subcatchment 3S: Proposed Impervious Hydrograph for Subcatchment 3S: Proposed Impervious aan Time Precip. Excess Runoff | Time Precip. Excess Runoff. Tt {rours) (nehes) (inches) (cs) | (hours) Gnohes) (ches) cfs) 0.00 0.00 0.00 0.00 | 26.00 866 8.42 0.00 ; 050 0.05 0.00 0.00 | 2650 866 8.42 0.00 1.00 0.10 0.01 0.03 | 27.00 866 8.42 0.00 150 0.15 0.04 0.05 | 2750 866 8.42 0.00 6 200 021 008 007 | 2800 866 842 0.00 250 0.27 012 0.08 | 2850 866 8.42 0.00 3.00 033 0.17 0.09 | 29.00 866 8.42 0.00 5 350 0.39 022 0.09 | 2950 866 8.42 0.00 z 400 045 0.28 0.10 | 30.00 866 8.42 0.00 har 450 052 0.34 0.11 2 500 059 0.40 ont 550 066 0.47 0.12 . 600 074 054 0.12 650 082 062 0.14 2 700 «091 0.71 0.16 750 1.01 0.80 0.17 B00 112 «091 0.19 , 850 1.24 = 1.03 0.21 900 137 1.16 0.22 ° osc 950 153 131 0.28 Ore oe SETS SDN We eT 18 1) 0M 2 2 2 25 26 27 28-20 30 10.00 1.72 1.49 0.34 Time (hours) 10.50 194 4.71 0.40 1100 225 © 202 0.60 1150 275° 251 0.97 1200 415 3.91 429 1250 591 5.68 134 13.00 641 6.17 0.70 13.50 672 6.48 0.45 1400 694 6.70 0.36 1450 7.13 6.89 0.30 15.00 7.29 7.05 0.24 1550 7.42 7.18 0.24 16.00 7.54 7.30 0.20 1650 7657.41 0.18 1700 7.75751 0.17 1750 7.84 7.60 0.15 1800 792 7.68 0.13 1850 800 7.76 0.13 19.00 8.07 7.83 0.12 19.50 8.14 7.90 0.12 20.00 821 7.97 0.11 2050 827 803 ont 21.00 833 8.09 0.14 2150 839 815 0.10 2200 845 821 0.10 2250 851 8.27 0.09 23.00 856 8.32 0.09 2350 861 8.37 0.08 24.00 866 8.42 0.08 2450 866 8.42 0.00 25.00 866 8.42 0.00 25.50 866 8.42 0.00