J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 n NJ DEP 2-hr NJDEP Rainfall=1.25" Prepared byTRC Engineers, Inc. HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 74 Summary for Pond CB 1: CB #1 [57] Hint: Peaked at 577.37’ (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 14.940 ac, 23.84% Impervious, Inflow Depth = 0.36" for NJDEP event 9.18 cfs @ 1.22 hrs, Volume= 0.452 af 9.18 cfs @ 1.22 hrs, Volume= 0.452 af, 9.18 cfs @ 1.22 hrs, Volume= 0.452 af Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 577.37’ @ 1.22 hrs Device Routing Invert Outlet Devices #1 Primary #2 Primary 576.00' 24.0" Round Culvert L= 90.0’ RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet lnvert= 576.00' / 574.00' S= 0.0222 V Cc= 0.900 n= 0.011 580.00' 100.0' long x 20.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=9.18 cfs @ 1.22 hrs HW=577.37' TW=0.00’ (Dynamic Tailwater) 1=Culvert (Inlet Controls 9.18 cfs @ 3.99 fps) '—2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond CB 1: CB #1 Hydrograph o i \ i i Q 1ft r.fsj 9.18 cfs + i i 0 —6 35 i —1i — i — i — i — I I I I ---! ----1 ---i . — 1 -------- 1 --1 -1 ----1 ---T — 1 1 -1 --— i “— — i - -r “ — r r - ■i - j ~- > “- I- i - -" * f~— i — r — i — i — i — i — t ~ — r i i i i i - 1 i i i ii i i i r i*i i i- i t r ■ Inflow I l i l t i i i i i i i i i i i i I i i i < i i __i ] i jL . _l _ L _ J _I _ _L ___ ___'___ 1 _ i J J _1 L _ i U J Primary i| _ _ - 1 i i \ i i i > i i i i 1 1 i i 1 i i i i --- — I 1 i ! i i Ii i i i i i t i l l l i i i i' L— - - 4 ’ *— ■ 1 t i l l . 1 1 i i 1 —i - -- 1 — | Peak Elev=577.37' i.i i i i 4 ------------------ 4 . — — 1 --------i ii 1 It t i i i f * 1 /.* * •1 :• 1 * V 1 i.i • i i.i i _ _i __i ___i __i ___ . i i i i‘ i l i i . I i i i i ill l i i r i i i 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 20 27 28 29 30 Time (hours) : i i 1 i 1 i i i i i i i i i i i 1 ____1 _________L _________1 _________ * i l i I 1 1 ; : ; : : . flfT.i j j| t in f f 0 i Inflow Area=14.940 ac —H l i i i i i i . i i i i i i i i i i i i i i i i i i i i i i i i i t i i i i i I . i I li J_

______L _________1 _________ * i l i I 1 1 ; : ; : : . flfT.i j j| t in f f 0 i Inflow Area=14.940 ac —H l i i i i i i . i i i i i i i i i i i i i i i i i i i i i i i i i t i i i i i I . i I li J_ ___ ______J______[__ ____ J __| _________ 1_J__: _______1 . 1 1 i t1 i i i1 i i i i i i i i i i i1 i i >1 i i i i i i i i i I I I I > 1 l . l 1 i i i i i i i i i i i i i i i — i ------------1 —|—,— i— t —r —i — i— r ------------T -----------r --i -------------1 * — — i i— -------------1 -- n - ~ r - H - i T ~ i i i i i i i i i i l l i l i i i i I 1 i i 1 t 1 i i i i t i i i l k i ■ i i i i i i i 1 i I i i i * i i _ _ L 1 _ J _ J . ^*-.1i i i l 1 l • i i i ill 1 i i i i i ( i » 1 1 - J i i i i i i L _______ __1 ______ _i___ . _l r i l i i I I I ! ----1 - ---t----— — — I I 1 t i l l ~ i i i i _ 1 r : ; t i i i i t i 1 i ,1 T —l —i — i ’ l l i i : i _ i : t •f ill i —