2022 08 Drainage Report

2022-07-28 Proposed Hydrology NOAA 24-hrD 10-Year Rainfall=5.22" 2022-07-28 Proposed Hydrology NOAA 24-hr D 10-Year Rainfall=5.22" Prepared by Dynamic Engineering Printed 8/5/2022 Prepared by Dynamic Engineering Printed 9/5/2022 HydroCAD® 10.20-2d s/n 08640 © 2021 Hi “AD Software Solutions LLC P: HydroCAD® 10.20-2d s/n 08640 © 2021 HydroCAD Software Solutions LLC. Page 60 ‘Summary for Subcatchment 1S: Basin A - Imp. Hydrograph for Subcatchment 1S: Basin A - Imp. Runof = 0.450fs@ 12.47 hrs, Volume= 0.044 af, Depth= 4.98" Time Precip. Excess Runoff | Time Precip, Excess Routed to Pond 3P : Basin A hours) (inches) {inches} jours) (inches) (inches) 0.00 0.00 0.00 52.00 6.22, 4.98 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs or) tees ee |e 5.22" 0.13 0.02 0.00 | 5400 522 4.98 NOAA 24-hr D_10-Year Rainfall=5.22 ga’ facee moat cacy cot age 0.27 0.12 0.01 56.00 5.22 4.98 Area (sf)__CN Description. 036 © 0.19 001 | 5700 522 4.98 4,655, 98 __Unconnected pavement, HSG C 0.45, 0.27 0.01 58.00 5.22 4.98 4,855 100.00% Impervious Area oes _ oot Fad Bel tae 4,655 10.00% Unconnected > A | ee Te Length Slope Velocity Capacity Description fea ea ca] 2 82 ie (min) (feet) _ (ft) __(ftlsec)__(ofs)__ 250 227 022 | 64.00 522 4.98 10.0 Direct Entry, Direct 3.86 3.63 0.06 65.00 5.22 4.98 4.19 3.95 0,03 66.00 5.22 4.98 : Basin A - 439° 4.16 0.02 | 67.00 522 4.98 Subcatchment 1S: Basin A - Imp. fais’ Waist oe 6200 «622488 Hydrograph 487 4.43 0.01 69.00 5.22 4.98 477 4.54 0.01 70.00 5.22 4.98 oa (Gkeay 488 4.63 001 | 71.00 5.22 4.98 4.95 471 0.01 72.00 5.22 4.98 oud NOAA 24-hr D 502 4.79 0.01 043 " 5.09 4.86 0.01 a 10-Year Rainfall=5.22' S16 492 0.04 =. 5.22 4.98 0.04 0364 Runoff Area=4,655 sf soo las; 0.00 oe Runoff Volume=0.044 af _ ae on gg ~~ Runoff Depth=4.98" 522 4.98 0.00 = a 5.22 4.98 0.00 Eg Tc=10.0 min Bop 488 0.00 = 522 4.98 0.00 CN=98 §.22 4.98 0.00 5.22 4.98 0,00 5.22 4.98 0,00 5.22 4.98 0,00 5.22 4.98 0.00 522 4.98 0.00 5.22 4.98 0.00 522 498 0.00 OE EB TOET TOTO R24 15209052 MB 442 440 HOD 6294 28 SOON EZ HS TTE ary Re 5.22 4,98 0.00 5.22 4.98 0.00 5.22 4.98 0.00 5.22 4.98 0.00 5.22 4,98 0.00 5.22 4,98 0,00 522 4.98 0.00 522 4.98 0.00 522 4.98 0.00 522 4.98 0.00 5.22 4.98 0.00