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Existing 25year
EARLEEDA-03EDA-04EDA-05PRINCEBTI2RMill RiverEXCBDP-3DP-4DP-5Drainage Diagram for Existing120307Prepared by Tighe&Bond 12/3/2007HydroCAD® 8.00 s/n 003772 © 2006 HydroCAD Software Solutions LLCSubcatReachPondLinkExisting120307Page 2Prepared by Tighe&Bond12/3/2007HydroCAD® 8.00 s/n 003772 © 2006 HydroCAD Software Solutions LLCArea Listing (all nodes)Area (acres)CNDescription (subcats)1.507 49 50-75% Grass cover, Fair, HSG A (EDA-04)6.577 69 50-75% Grass cover, Fair, HSG B (EDA-03,EDA-04,EDA-05)0.600 74 >75% Grass cover, Good, HSG C (EARLE,PRINCE)0.416 74 >75%Grass cover,Good,HSGCMonument (EDA-05)12.153 79 50-75% Grass cover, Fair, HSG C (EDA-03,EDA-04,EDA-05)0.114 98 Paved parking (EDA-03)1.950 98 Paved parking & roofs (EARLE,PRINCE)1.316 98 Paved roads w/curbs & sewers (EDA-04,EDA-05)0.769 98 Roofs (EDA-03,EDA-04)1.286 98 roofs (EDA-05) 26.689 Type III 24-hr 25 Year Rainfall=5.15"Existing120307Page 3Prepared by Tighe&Bond12/3/2007HydroCAD® 8.00 s/n 003772 © 2006 HydroCAD Software Solutions LLCTime span=0.00-24.00 hrs, dt=0.03 hrs, 801 pointsRunoff by SCS TR-20 method, UH=SCSReach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind methodRunoff Area=1.000 ac Runoff Depth>3.81"Subcatchment EARLE: Tc=6.0 min CN=88 Runoff=4.33 cfs 0.317 afRunoff Area=51,378 sf Runoff Depth>2.83"Subcatchment EDA-03: Flow Length=290' Tc=11.2 min CN=78 Runoff=3.30 cfs 0.279 afRunoff Area=481,702 sf Runoff Depth>2.39"Subcatchment EDA-04: Flow Length=950' Tc=18.9 min CN=73 Runoff=21.24 cfs 2.201 afRunoff Area=518,430 sf Runoff Depth>3.02"Subcatchment EDA-05: Flow Length=700' Tc=11.8 min CN=80 Runoff=34.80 cfs 2.993 afRunoff Area=1.550 ac Runoff Depth>4.56"Subcatchment PRINCE: BTI Tc=6.0 min CN=95 Runoff=7.56 cfs 0.590 af Inflow=63.89 cfs 6.380 afReach 2R: Mill River Outflow=63.89 cfs 6.380 afPeak Elev=137.14' Inflow=37.99 cfs 3.310 afPond EX: Primary=7.00 cfs 2.325 af Secondary=30.99 cfs 0.986 af Outflow=37.99 cfs 3.310 af Inflow=10.32 cfs 0.868 afLink DP-3: Primary=10.32 cfs 0.868 af Inflow=21.24 cfs 2.201 afLink DP-4: Primary=21.24 cfs 2.201 af Inflow=37.99 cfs 3.310 afLink DP-5: Primary=37.99 cfs 3.310 afTotal Runoff Area = 26.689 ac Runoff Volume = 6.380 af Average Runoff Depth = 2.87"79.64% Pervious Area = 21.255 ac 20.36% Impervious Area = 5.435 ac