PL PACKET 08172021 - Laserfiche WebLink

Home Browse Search

MSE 24-hr 3 2-Year Rainfall=2.86"2021-07-02 Pond Printed 7/13/2021Prepared by j Page 4HydroCAD® 10.10-3a s/n 03363 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1SE: Existing East Runoff =1.70 cfs @ 12.23 hrs, Volume=0.114 af, Depth> 1.65" Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-24.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-Year Rainfall=2.86" Area (sf) CN Description 28,592 84 50-75% Grass cover, Fair, HSG D 7,367 98 Paved parking, HSG D 35,959 87 Weighted Average 28,592 84 79.51% Pervious Area 7,367 98 20.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet)(ft/ft) (ft/sec)(cfs) 15.1 220 0.0450 0.24 Sheet Flow, Grass: Short n= 0.150 P2= 2.48" Summary for Subcatchment 2SE: Existing West Runoff =0.33 cfs @ 12.12 hrs, Volume=0.016 af, Depth> 2.27" Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-24.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-Year Rainfall=2.86" Area (sf) CN Description 1,067 84 50-75% Grass cover, Fair, HSG D 2,608 98 Paved parking, HSG D 3,675 94 Weighted Average 1,067 84 29.03% Pervious Area 2,608 98 70.97% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet)(ft/ft) (ft/sec)(cfs) 5.0 Direct Entry, minimum of 5 min Tc Summary for Reach 6R: Existing Runoff Inflow Area =0.910 ac, 25.17% Impervious, Inflow Depth > 1.71" for 2-Year event Inflow =1.82 cfs @ 12.23 hrs, Volume=0.130 af Outflow =1.82 cfs @ 12.23 hrs, Volume=0.130 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs