J_2024 05 09_West Orange Stormwater Management Plan

Pre-Development West Orange with ponds 2 NJ DEP 2-hrNJDEP RainfalM .25" Prepared by TRC Engineers, Inc. HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/4/2012 Page 78 Summary for Reach 10R: CB-3 to CB-1 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = Inflow = Outflow = 1.072 ac, 34.07% Impervious, Inflow Depth = 0.55" for NJDEP event 0.86 cfs @ 1.41 hrs, Volume= 0.049 af 0.86 cfs @ 1.42 hrs, Volume= 0.049 af, Atten= 0%, Lag= 0.2 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Max. Velocity= 5.39 fps, Min. Travel Time= 0.4 min Avg. Velocity = 2.61 fps, Avg. Travel Time= 0.9 min Peak Storage= 22 cf @ 1.42 hrs Average Depth at Peak Storage= 0.26' Bank-Full Depth= 1.00', Capacity at Bank-Full= 5.95 cfs 12.0" Round Pipe n= 0.025 Corrugated metal Length= 140.0' Slope= 0.1030 7 Inlet lnvert= 592.92', Outlet lnvert= 578.50' Reach 10R: CB-3 to CB-1 Hydrograph — I Inflow I J 0.9S-fl n flfi.C ____I____L - L . 4 - J __________________________1 - J . - J _______I ___l _ _ l ___L 0.86 cfs r - t 0.75 0.655 r i— r - r • * i i i l l - , - , i a i i . i , i i i * -1--i~-i-T'r-i-i--i--rT-r-Tv-i—i--r-r-T-rrTT-r-i»>w - t S 0.55 0.55 0.45 -r-j- J - J . _ .i 0.35-: ^ .1 i-j - 4 - - I ---- 0.2. Round Pipe n—0.025 i- L=140.0’ U-l._i-J-J__l--l--L-i-J.J-. —i. -i .„1 0.25-: A11 • i i i 0.6-: 0.4-= - i ---1 -----I . Inflow Area-1,072 ac Avg. Flow DeptK=Q.26; Max Vel=5.39 fps 0 80.755 _ iilI-IiIj: is=o.to3o; ^ r Capacity=5.95 cfs • - 4 ---- I - - 0.15 I - -I - -I - - 0.10.055 0 1 234 56 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) - I Outflow!