2025 12-02 PC Packet - Laserfiche WebLink

Home

Type II 24-hr 2-year Rainfall=2.79"25018 Proposed Hydro Printed 10/29/2025Prepared by Land & Resource Consulting Inc Page 4HydroCAD® 10.20-7a s/n 12643 © 2025 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=15,300 sf 15.69% Impervious Runoff Depth=2.02"Subcatchment 1S: Site to Lowpoint Tc=7.0 min CN=WQ Runoff=1.10 cfs 2,576 cf Runoff Area=8,900 sf 7.87% Impervious Runoff Depth=1.78"Subcatchment 2S: Site to East Tc=7.0 min CN=WQ Runoff=0.57 cfs 1,321 cf Runoff Area=14,200 sf 19.72% Impervious Runoff Depth=2.23"Subcatchment 3S: Offsite North to Tc=7.0 min CN=WQ Runoff=1.13 cfs 2,643 cf Runoff Area=7,800 sf 25.64% Impervious Runoff Depth=2.06"Subcatchment 4S: Offsite Southwest to Tc=7.0 min CN=WQ Runoff=0.57 cfs 1,338 cf Runoff Area=2,100 sf 100.00% Impervious Runoff Depth=2.56"Subcatchment 5S: Site to Road Tc=7.0 min CN=98 Runoff=0.18 cfs 448 cf Runoff Area=3,800 sf 63.16% Impervious Runoff Depth=1.90"Subcatchment 6S: Site to Driveway Culvert Tc=7.0 min CN=WQ Runoff=0.25 cfs 603 cf Inflow=3.12 cfs 8,036 cfReach 1R: Site Total Outflow=3.12 cfs 8,036 cf Inflow=2.61 cfs 6,715 cfReach 2R: Site to West Outflow=2.61 cfs 6,715 cf Avg. Flow Depth=0.34' Max Vel=5.78 fps Inflow=1.38 cfs 3,245 cfReach 3R: Driveway Culvert 12.0" Round Pipe n=0.013 L=30.0' S=0.0233 '/' Capacity=5.44 cfs Outflow=1.38 cfs 3,245 cf Peak Elev=959.29' Storage=1,535 cf Inflow=3.05 cfs 7,159 cfPond 1P: Onsite Lowpoint Discarded=0.01 cfs 892 cf Primary=2.47 cfs 6,267 cf Outflow=2.47 cfs 7,159 cf Total Runoff Area = 52,100 sf Runoff Volume = 8,928 cf Average Runoff Depth = 2.06" 76.20% Pervious = 39,700 sf 23.80% Impervious = 12,400 sf