2025 02 Drainage Statement Signed

2025-01 HydroCAD NOAA 24-hr D. 100-Year Rainfall=8.66" Prepared by Dynamic Engineering Printed 2/21/2025 HydroCAD® 10.20-6a s/n 08640 © 2024 HydroCAD Software Solutions LLC Page 52 2025-01 HydroCAD NOAA 24-hr D. 100-Year Rainfall=8.66" Prepared by Dynamic Engineering Printed 2/21/2025 HydroCAD® 10.20-6a s/n 08640 © 2024 HydroCAD Software Solutions LLC Page 53 Hydrograph for Link SL: Existing Total Time Inflow Elevation Primary | Time Inflow Elevation Primary (hours) (cfs) (eet) (cfs) } (hours) (cfs) (feet) (cls) 0.00 0.00 0.00 0.00 | 26.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 | 26.50 0.00 0.00 0.00 1.00 0.03 0.00 0.03 | 27.00 0.00 0.00 0.00 1.50 0.05, 0.00 0.05 | 27.50 0.00 0.00 0.00 2.00 0.07 0.00 007 | 28.00 0.00 0.00 0.00 2.50 0.08 0.00 0.08 | 28.50 0.00 0.00 0.00 3.00 0.09 0.00 0.09 | 29.00 0.00 0.00 0.00 3.50 0.10 0.00 0.10 | 29.50 0.00 0.00 0.00 4,00 0.10 0.00 0.10 | 30.00 0.00 0.00 0.00 4.50 0.11 0.00 ot 5.00 0.12 0.00 012 5.50 0.12 0.00 0.12 6.00 0.13 0.00 0.13 6.50 0.14 0.00 0.14 7.00 0.16 0.00 0.16 7.50 0.18 0.00 0.18 8.00 0.20 0.00 0.20 8.50 0.22 0.00 0.22 9.00 0.24 0.00 0.24 9.50 0.31 0.00 0.31 10.00 0.38 0.00 0.38 10.50 0.45 0.00 0.45 11.00 0.70 0.00 0.70 11.50 1.16 0.00 1.16 12.00 5.34 0.00 5.34 12.50 1 0.00 Rea) 13.00 0.90 0.00 0.90, 13.50 0.58 0.00 0.58 14.00 0.46 0.00 0.46 14.50 0.39 0.00 0.39 15.00 0.31 0.00 0.31 15.50 0.28 0.00 0.28 16.00 0.26 0.00 0.26 16.50 0.24 0.00 0.24 17.00 0.21 0.00 0.21 17.50 0.19 0.00 0.19 18.00 0.17 0.00 0.17 18.50 0.16 0.00 0.16 19.00 0.16 0.00 0.16 19.50 0.15, 0.00 0.15, 20.00 0.15 0.00 0.15 20.50 014 0.00 014 21.00 0.14 0.00 0.14 21.50 0.13 0.00 0.13 22.00 0.13 0.00 0.13 22.50 0.12 0.00 0.12 23.00 0.12 0.00 0.12 23.50 ont 0.00 ont 24.00 0.11 0.00 ot 24.50 0.00 0.00 0.00 25.00 0.00 0.00 0.00, 25.50 0.00 0.00 0.00 Summary for Link 6L: Proposed Total Inflow Area 1.133 ac, 74.29% Impervious, Inflow Depth = 7.61" for 100-Year event Inflow 8.97 cfs @ 12.10hrs, Volume= 0.719 af Primary 8.97 cfs@ 12.10 hrs, Volume= 0.719 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0,00-30.00 hrs, dt= 0.05 hrs Link 6L: Proposed Total Hydrograph Flow (efs) ° le, O12 34 5 6 7 8 8 TOT) i te We WIT 18 19 20 1 22 2 24 25 26 27 28 20 30 Time (hours)