2022 08 Drainage Report

2022-07-28 Proposed Hydrology NOAA 24-hr D 10-Year Rainfall=5.22" 2022-07-28 Proposed Hydrol NOAA 24-hr D 10-Year Rainfall=6.22" oposed Hydrology Prepared by Dynamic Engineering Printed 8/5/2022 Prepared by Dynamic Engineering Printed 8/5/2022 HydroCAD®@ 10.20-2d_sin 08640 © 2021 HydroCAD Software Solutions LLC __Page 73 HydroCAD@ 10.20-2d_s/n 08640 © 2021 HydroCAD Software Solutions LLC Page 74 Summary for Subcatchment 10S: Mt. Pleasant Ave Undetained - Perv. Hydrograph for Subcatchment 10S: Mt. Pleasant Ave Undetained - Perv. Runoff = —2.32cfs@ 12.18hrs, Volume= 0.196 af, Depth= 2.54" Time Precip. Excess Runoff | Time Precip. Excess Runoff Routed to Link 3L : Mt. Pleasant Ave - Undetained (hours) (inches) (inches) (cfs) | (hours) (inches) (inches) (cts) 0.00 0.00 0.00 0.00 52.00 2.54 0.00 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs a 9.00 9.00 | 53.00 2a 0.00 NOAA 24-hrD 10-Year Rainfall=5.22" An toy noel {| saeco Ba He 4.00 0,00 0.00 | 56.00 pest 0.00 Area (sf)_ CN Description 5.00 0.00 0.00 | 57.00 2.54 0.00 38,200 74 _>75% Grass cover, Good, HSG C 6.00 0.00 0.00 | 58.00 254 0.00 2.119 80 __>75% Grass cover, Good, HSG D 7.00 0.00 0.00 | 58.00 2.54 0.00 fogs aati eee 300 dco aor | 61.00 ze 0.00 pd ine: Romoue re 10.00 0.03 0.03 | 62.00 2.54 0.00 Te Length Slope Velocity Capacity Description Wie car eed _ ed (min) (feet) (fut) _(flisec) _(cfs)__ 13.00 1.50 0.36 | 65.00 254 0.00 10.0 Direct Entry, Direct 14.00 173 ots | 68.00 254 0.00 15.00 1189 013 | 67.00 254 0.09 ined - 16.00 201 0.10 | 68.00 254 0.00 Subcatchment 10S: Mt. Pleasant Ave Undetained - Perv. iviod 310 O09 | 68.00 eed 0.00 Hydrograph 18.00 2.19 0.07 70.00 2.54 0.00 49.00 2.26 0.08 | 71.00 254 0.00 Ge} 20.00 2.32 00s | 72.00 254 0.00 21.00 238 0.06 NOAA 24-hr D 22.00 244 0.05 7 0 23.00 49 0.05 2 10-Year Rainfall=5.22 24.00 2.54 0.04 =, 25.00 2.54 0.00 R Font ee ; = 26.00 on on lume=0. a 27.00 2.54 0,00 = nner Volumerd a 28.00 254 0.00 z Runoff Depth=2.54 29.00 254 0.00 30,00 2.54 0.00 H Te=10.0 min 31.00 254 0.00 1 = 32.00 254 0.00 CN=74 33,00 2.54 0.00 34.00 2.54 0.00 35.00 2.54 0.00 36.00 254 0.00 37.00 254 0.00 38.00 254 0.00 ‘ 39.00 254 0.00 40.00 2.54 0.00 OUR H BB TOT WWI DTD 202850321 3884042 a0 a8 SOD BP Oe SBD G2 O48 BBTO Te pad Bo ny 42.00 2.54 0.00 43.00 254 0.00 44.00 2.54 0.00 45.00 254 0.00 46.00 2.54 0.00 47.00 254 0.00 48.00 2.54

00 2.54 0.00 OUR H BB TOT WWI DTD 202850321 3884042 a0 a8 SOD BP Oe SBD G2 O48 BBTO Te pad Bo ny 42.00 2.54 0.00 43.00 254 0.00 44.00 2.54 0.00 45.00 254 0.00 46.00 2.54 0.00 47.00 254 0.00 48.00 2.54 0.00 49.00 2.54 0.00 50.00 2.54 0.00 51.00 2.54 0.00