470 Eagle Drainage Reports 06 2024

2024-04 HydroCAD NOAA 24-hr D 100-Year Rainfall=8.66" Prepared by Dynamic Engineering Printed 6/5/2024 HydroCAD® 10.20-5a s/n 08640 © 2023 HydroCAD Software Solutions LLC Primary Comparison

STORMWATER COLLECTION SYSTEM CLACULATIONS (PIPE SIZING)

Project: Proposed Popeyes & IHOP Restaurant Computed By: DG Job #: 1021-99-025 Checked By: MJB Location: West Orange, NJ Date: 6/5/2024 Drainage Area Impervious Coefficient Open Space Coefficient Average Coefficient Total Area (SF) Total Area Area (sf) (C) Used (SF) (C) Used (C) Used (acres) Inlet Area #2 1,215 0.95 566 0.35 0.76 1781 0.04 Inlet Area #3 3,408 0.95 906 0.35 0.82 4314 0.10 Inlet Area #4 2,861 0.95 1,690 0.35 0.73 4551 0.10 Inlet Area #5 1,716 0.95 1,270 0.35 0.69 2986 0.07 Inlet Area #6 6,559 0.95 105 0.35 0.94 6664 0.15 Inlet Area #9 500 0.95 176 0.35 0.79 676 0.02 Inlet Area #10 1,909 0.95 125 0.35 0.91 2034 0.05 Inlet Area #11 1,552 0.95 768 0.35 0.75 2320 0.05 Inlet Area #12 6,545 0.95 1,326 0.35 0.85 7871 0.18 Inlet Area #13 872 0.95 65 0.35 0.91 937 0.02 Roof Rear 3,358 0.95 - 0.35 0.95 3358 0.08 Roof Front 2,830 0.95 - 0.35 0.95 2830 0.06

NOTES: Project: Proposed Popeyes & IHOP Restaurant Computed By: DG 1) Design method used is Rational Method, unless otherwise noted. Job #: 1021-99-025 Checked By: MJB 2) Refer to Weighted Runoff Coefficient table Location: West Orange, NJ Date: 6/5/2024 for calculation of incremental areas and C values Design Storm: 25 Year SUBCATCHMENT TIME OF PIPE SECTION INCREMENTAL CUMULATIVE I PEAK RUNOFF PIPING INPUT PIPING DATA AREA CONCENTRATION Tc to Tc in Final Q to Q cum. Pipe Pipe Dia. Length Man. Slope FROM TO Area (Acres) "C" A x C Ac A x C (acres) Inlet Pipe Tc (In/Hr) Inlet for Pipe Capacity Velocity (In) (Ft) "n" (ft/ft) (min) (min.) (min) (CFS) (CFS) (cfs) (fps) Roof Rear Inlet #2 0.08 0.95 0.08 0.08 10.00 0.03 10.00 6.80 0.54 0.54 6 6.0 0.010 0.0100 0.73 3.72 Inlet #2 Inlet #3 0.04 0.76 0.03 0.11 10.00 0.03 10.03 6.80 0.20 0.75 12 15.0 0.013 0.0300 6.17 7.86 Inlet #3 Inlet #4 0.10 0.82 0.08 0.19 10.00 0.14 10.06 6.80

0.20 0.75 12 15.0 0.013 0.0300 6.17 7.86 Inlet #3 Inlet #4 0.10 0.82 0.08 0.19 10.00 0.14 10.06 6.80 0.54 1.29 12 64.0 0.013 0.0300 6.17 7.86 Inlet #4 Inlet #5 0.10 0.73 0.07 0.26 10.00 0.21 10.20 6.80 0.48 1.77 12 81.0 0.013 0.0200 5.04 6.42 Inlet #5 Inlet #6 0.07 0.69 0.05 0.31 10.00 0.37 10.41 6.80 0.34 2.11 12 144.0 0.013 0.0200 5.04 6.42 Roof Front Inlet #9 0.06 0.95 0.06 0.06 10.00 0.03 10.00 6.80 0.41 0.41 6 6.0 0.010 0.0092 0.70 3.57 Inlet #9 Inlet #10 0.02 0.79 0.02 0.08 10.00 0.04 10.03 6.80 0.14 0.54 12 18.0 0.013 0.0250 5.63 7.17 Inlet #10 Inlet #11 0.05 0.91 0.05 0.13 10.00 0.14 10.07 6.80 0.34 0.88 12 59.0 0.013 0.0252 5.65 7.20 Inlet #11 Inlet #12 0.05 0.75 0.04 0.17 10.00 0.24 10.21 6.80 0.27 1.16 12 111.0 0.013 0.0300 6.17 7.86 Inlet #12 Inlet #13 0.18 0.85 0.15 0.32 10.00 0.12 10.45 6.80 1.02 2.18 12 48.0 0.013 0.0200 5.04 6.42 Inlet #13 Inlet #6 0.02 0.91 0.02 0.34 10.00 0.07 10.57 6.68 0.13 2.27 12 26.0 0.013 0.0200 5.04 6.42 Inlet #6 Ex. Inlet 0.15 0.94 0.14 0.79 10.00 0.05 10.78 6.68 0.94 5.28 15 27.0 0.013 0.0300 11.18 9.11

DRAINAGE & INLET AREA MAPS

1904 Main Street Lake Como, NJ 07719 T: 732.974.0198 F: 732.974.3521 www.dynamicec.com ● PERMITTING ● LAND DEVELOPMENT CONSULTING GEOTECHNICAL ● ENVIRONMENTAL ● SURVEY ● PLANNING & ZONING Offices conveniently located in: Lake Como, New Jersey T: 732.974.0198 | Chester, New Jersey T: 908.879.9229 | Newark, New Jersey T: 973.755.7200 | Toms River, New Jersey T: 732.974.0198 Allen, Texas T: 972.534.2100 | Austin, Texas T:512.646.2646 | Houston, Texas T: 281.789.6400 | Delray Beach, Florida T: 561.921.8570 Newtown, Pennsylvania T: 267.685.0276 | Philadelphia, Pennsylvania T: 215.253.4888 | Bethlehem, Pennsylvania T: 610.598.4400 MATTHEW J. BERSCHROBERT P. FREUD ã

1904 Main Street Lake Como, NJ 07719 T: 732.974.0198 F: 732.974.3521 www.dynamicec.com ● PERMITTING ● LAND DEVELOPMENT CONSULTING GEOTECHNICAL ● ENVIRONMENTAL ● SURVEY ● PLANNING & ZONING Offices conveniently located in: Lake Como, New Jersey T: 732.974.0198 | Chester, New Jersey T: 908.879.9229 | Newark, New Jersey T: 973.755.7200 | Toms River, New Jersey T: 732.974.0198 Allen, Texas T: 972.534.2100 | Austin, Texas T:512.646.2646 | Houston, Texas T: 281.789.6400 | Delray Beach, Florida T: 561.921.8570 Newtown, Pennsylvania T: 267.685.0276 | Philadelphia, Pennsylvania T: 215.253.4888 | Bethlehem, Pennsylvania T: 610.598.4400 MATTHEW J. BERSCHROBERT P. FREUD ã

1904 Main Street Lake Como, NJ 07719 T: 732.974.0198 F: 732.974.3521 www.dynamicec.com ● PERMITTING ● LAND DEVELOPMENT CONSULTING GEOTECHNICAL ● ENVIRONMENTAL ● SURVEY ● PLANNING & ZONING Offices conveniently located in: Lake Como, New Jersey T: 732.974.0198 | Chester, New Jersey T: 908.879.9229 | Newark, New Jersey T: 973.755.7200 | Toms River, New Jersey T: 732.974.0198 Allen, Texas T: 972.534.2100 | Austin, Texas T:512.646.2646 | Houston, Texas T: 281.789.6400 | Delray Beach, Florida T: 561.921.8570 Newtown, Pennsylvania T: 267.685.0276 | Philadelphia, Pennsylvania T: 215.253.4888 | Bethlehem, Pennsylvania T: 610.598.4400 MATTHEW J. BERSCHROBERT P. FREUD ã