Supporting Documentation · Nov 17, 2022
V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022
51baad1e902190dbd8bc99e285d5ec57900256b219be5005cdb7869b76e2669bIndexed text
96 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 19 Total Offsite Hydrograph type = Combine Peak discharge = 96.75 cfs Storm frequency = 100 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 401,465 cuft Inflow hyds. = 5, 11, 14, 15, 18 Contrib. drain. area = 4.030 ac Total Offsite Q (cfs) Q (cfs) Hyd. No. 19 -- 100 Year 100.00 100.00 90.00 90.00 80.00 80.00 70.00 70.00 60.00 60.00 50.00 50.00 40.00 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00
20.00 10.00 10.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 19 Hyd No. 5 Hyd No. 11 Hyd No. 14 Hyd No. 15 Hyd No. 18
97 Hydraflow Rainfall Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Return Intensity-Duration-Frequency Equation Coefficients (FHA) Period (Yrs) B D E (N/A) 1 0.0000 0.0000 0.0000 -------- 2 69.8703 13.1000 0.8658 -------- 3 0.0000 0.0000 0.0000 -------- 5 79.2597 14.6000 0.8369 -------- 10 88.2351 15.5000 0.8279 -------- 25 102.6072 16.5000 0.8217 -------- 50 114.8193 17.2000 0.8199 -------- 100 127.1596 17.8000 0.8186 -------- File name: SampleFHA.idf Intensity = B / (Tc + D)^E Return Intensity Values (in/hr) Period (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 5.69 4.61 3.89 3.38 2.99 2.69 2.44 2.24 2.07 1.93 1.81 1.70 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 6.57 5.43 4.65 4.08 3.65 3.30 3.02 2.79 2.59 2.42 2.27 2.15 10 7.24 6.04 5.21 4.59 4.12 3.74 3.43 3.17 2.95 2.77 2.60 2.46 25 8.25 6.95 6.03
10 7.24 6.04 5.21 4.59 4.12 3.74 3.43 3.17 2.95 2.77 2.60 2.46 25 8.25 6.95 6.03 5.34 4.80 4.38 4.02 3.73 3.48 3.26 3.07 2.91 50 9.04 7.65 6.66 5.92 5.34 4.87 4.49 4.16 3.88 3.65 3.44 3.25 100 9.83 8.36 7.30 6.50 5.87 5.36 4.94 4.59 4.29 4.03 3.80 3.60 Tc = time in minutes. Values may exceed 60. \Petry Engineering Cad Projects\2019\19 0265 Daughters of Israel - West Orange\Civil\Current\Stormwater\Rainfall.pcp Rainfall Precipitation Table (in) Storm Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 0.00 3.44 0.00 0.00 0.00 0.00 0.00 0.00 SCS 6-Hr 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-1st 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 3.44 0.00 0.00 5.22 6.44 0.00 8.66
PROPOSED CONDITIONS HYDROGRAPHS
Hydraflow Table of Contents Proposed Conditions.gpw Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Watershed Model Schematic...................................................................................... 1 Hydrograph Return Period Recap............................................................................. 2 2 - Year Summary Report......................................................................................................................... 3 Hydrograph Reports................................................................................................................... 4 Hydrograph No. 1, SCS Runoff, DA-1A (Roof)......................................................................... 4 Precipitation Report............................................................................................................. 5 Hydrograph No. 2, SCS Runoff, DA-2 (Pervious).................................................................... 6 Precipitation Report............................................................................................................. 7 Hydrograph No. 3, SCS Runoff, DA-2 (Impervious)................................................................. 8 Precipitation Report............................................................................................................. 9 Hydrograph No. 4, SCS Runoff, DA-3 (Pervious).................................................................. 10 Precipitation Report........................................................................................................... 11 Hydrograph No. 5, SCS Runoff, DA-3 (Impervious)............................................................... 12 Precipitation Report........................................................................................................... 13 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 14 Precipitation
.............................................. 13 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 14 Precipitation Report........................................................................................................... 15 Hydrograph No. 7, SCS Runoff, DA-4 (Impervious)............................................................... 16 Precipitation Report........................................................................................................... 17 Hydrograph No. 8, Combine, DA-2........................................................................................ 18 Hydrograph No. 9, Combine, DA-3........................................................................................ 19 Hydrograph No. 10, Combine, DA-4...................................................................................... 20 Hydrograph No. 11, Reservoir, Basin #3................................................................................ 21 Pond Report - Basin #3..................................................................................................... 22 Hydrograph No. 12, Reservoir, Basin #1A.............................................................................. 23 Pond Report - Basin #1A................................................................................................... 24 Hydrograph No. 13, Reservoir, Basin #2................................................................................ 25 Pond Report - Basin #2..................................................................................................... 26 Hydrograph No. 14, SCS Runoff, DA-1B (Roof).................................................................... 27 Precipitation Report........................................................................................................... 28 Hydrograph No. 15, Reservoir, Basin #1B............................................................................. 29 Pond Report - Basin #1B................................................................................................... 30 Hydrograph No. 16, Combine, <no
................. 29 Pond Report - Basin #1B................................................................................................... 30 Hydrograph No. 16, Combine, <no description>.................................................................... 31 10 - Year Summary Report....................................................................................................................... 32 Hydrograph Reports................................................................................................................. 33 Hydrograph No. 1, SCS Runoff, DA-1A (Roof)....................................................................... 33 Precipitation Report........................................................................................................... 34 Hydrograph No. 2, SCS Runoff, DA-2 (Pervious).................................................................. 35 Precipitation Report........................................................................................................... 36 Hydrograph No. 3, SCS Runoff, DA-2 (Impervious)............................................................... 37 Precipitation Report........................................................................................................... 38 Hydrograph No. 4, SCS Runoff, DA-3 (Pervious).................................................................. 39 Precipitation Report........................................................................................................... 40 Hydrograph No. 5, SCS Runoff, DA-3 (Impervious)............................................................... 41
Contents continued... Proposed Conditions.gpw Precipitation Report........................................................................................................... 42 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 43 Precipitation Report........................................................................................................... 44 Hydrograph No. 7, SCS Runoff, DA-4 (Impervious)............................................................... 45 Precipitation Report........................................................................................................... 46 Hydrograph No. 8, Combine, DA-2........................................................................................ 47 Hydrograph No. 9, Combine, DA-3........................................................................................ 48 Hydrograph No. 10, Combine, DA-4...................................................................................... 49 Hydrograph No. 11, Reservoir, Basin #3................................................................................ 50 Hydrograph No. 12, Reservoir, Basin #1A.............................................................................. 51 Hydrograph No. 13, Reservoir, Basin #2................................................................................ 52 Hydrograph No. 14, SCS Runoff, DA-1B (Roof).................................................................... 53 Precipitation Report........................................................................................................... 54 Hydrograph No. 15, Reservoir, Basin #1B............................................................................. 55 Hydrograph No. 16, Combine, <no description>.................................................................... 56 100 - Year Summary Report....................................................................................................................... 57 Hydrograph
........................ 56 100 - Year Summary Report....................................................................................................................... 57 Hydrograph Reports................................................................................................................. 58 Hydrograph No. 1, SCS Runoff, DA-1A (Roof)....................................................................... 58 Precipitation Report........................................................................................................... 59 Hydrograph No. 2, SCS Runoff, DA-2 (Pervious).................................................................. 60 Precipitation Report........................................................................................................... 61 Hydrograph No. 3, SCS Runoff, DA-2 (Impervious)............................................................... 62 Precipitation Report........................................................................................................... 63 Hydrograph No. 4, SCS Runoff, DA-3 (Pervious).................................................................. 64 Precipitation Report........................................................................................................... 65 Hydrograph No. 5, SCS Runoff, DA-3 (Impervious)............................................................... 66 Precipitation Report........................................................................................................... 67 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 68 Precipitation Report........................................................................................................... 69 Hydrograph No. 7, SCS Runoff, DA-4 (Impervious)............................................................... 70 Precipitation Report........................................................................................................... 71 Hydrograph No. 8, Combine, DA-2........................................................................................ 72 Hydrograph No. 9, Combine,
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- Sep 29, 2026
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