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HomeMy WebLinkAboutApplication Files_85048_pg0200 PRE-DEVELOPMENT DRAINAGE 2007-058 Jones-PRE Type W 24-hr.2-year Rainfall=3.20" Prepared by J.R. Russo &Associates Printed 12/11/2010 HydroCAD®8.50 s/n 002386 ©2007 HydroCAD Software Solutions LLC Page 10 Time span=1.00-72.00 hrs, dt=0.01 hrs, 7101 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: To Sullivan Avenue West Runoff Area=38.320 ac 3.99% Impervious Runoff Depth=1.04" Flow Length=1,787' Tc=84.5 min CN=74 Runoff=13.78 cfs 3.313 of Subcatchment 1S: Sullivan Ave Drainage Runoff Area=1.970 ac 86.29% Impervious Runoff Depth=2.45" Flow Length=1,500' Tc=35.9 min CN=93 Runoff=2.87 cfs 0.402 of Subcatchment 2: To Sullivan Ave East Runoff Area=4.470 ac 4.47% Impervious Runoff Depth=0.64" Flow Length=1,455' Tc=43.9 min CN=66 Runoff=1.30 cfs 0.240 of ' Subcatchment 2S: Sullivan Ave Drainage Runoff Area=4.160 ac 86.54% Impervious Runoff Depth=2.45" Flow Length=2,450' Tc=11.8 min CN=93 Runoff=9.59 cfs 0.848 of Subcatchment 3S: Rear of Red Star Runoff Area=8.170 ac 41.25% Impervious Runoff Depth=1.04" Flow Length=550' Tc=6.8 min CN=74 Runoff=9.15 cfs 0.706 of Subcatchment 6S: Sullivan Ave to CB Runoff Area=0.310 ac 100.00% Impervious Runoff Depth=2.97" Tc=5.0 min CN=98 Runoff=1.00 cfs 0.077 of Subcatchment 20: To DP#2 Runoff Area=18.070 ac 8.69% Impervious Runoff Depth=0.28" Flow Length=1,200' Tc=66.8 min CN=56 Runoff=1.14 cfs 0.421 of Reach 3R: Basin to MH Avg. Depth=0.42' Max Vet=3.39 fps Inflow=1.38 cfs 0.263 of D=18.0" n=0.012 L=1,250.0' S=0.0050 '/' Capacity=8.05 cfs Outflow=1.36 cfs 0.263 of Pond DP1: Design Point#1 Peak Elev=77.82' Inflow=15.15 cfs 5.014 of 24.0"x 234.0'Culvert Outflow=15.15 cfs 5.014 of Pond DP2: Design Point#2 Inflow=1.14 cfs 0.421 of ' Primary=1.14 cfs 0.421 of Pond MH: Existing MH Peak Elev=78.58' Inflow=15.04 cfs 4.937 of 24.0"x 50.0' Culvert Outflow=15.04 cfs 4.937 of Pond P1: ON-SITE AREA DRAIN Peak Elev=82.29' Storage=4,478 cf Inflow=13.78 cfs 3.313 of Discarded=1.62 cfs 0.128 of Primary=11.24 cfs 3.185 of Outflow=12.86 cfs 3.313 of Pond IRS: Red Star Basin Peak Elev=85.58' Storage=7,187 cf Inflow=9.15 cfs 0.706 of Discarded=1.69 cfs 0.443 of Primary=1.38 cfs 0.263 of Outflow=3.07 cfs 0.706 of