Southtowns Record

5A.-ENGINEER'S REPORT

Government
Town of Aurora
Board
Town Board
Meeting
Feb 4, 2026
Kind
Other
Topics
Water, sewer and drainage, Zoning and land use, Public safety

Original document

Same meeting

Text · page 160 of 351

Read the whole document on one page (all 351 pages, each with its own heading)

WNY-2500056.00_HydroCAD  extreme_precip_tables_output (29) 24-hr S1 10-yr Rainfall=3.14"
Prepared by Greenman-Pedersen, Inc  Printed 12/18/2025
HydroCAD® 10.20-7a s/n 04560 © 2025 HydroCAD Software Solutions LLC  Page 85

  Subcatchment DA 5: Drainage Area 5
  Hydrograph

  Runoff
  0.26  0.24 cfs
  0.24  extreme_precip_tables_output (29) 24-hr S1 10-yr
  Rainfall=3.14"
  0.22  Runoff Area=0.050 ac
  Runoff Volume=0.012 af
  0.2  Runoff Depth>2.91"
  Flow Length=60'
  0.18  Slope=0.0050 '/'
  Tc=1.7 min
  0.16
  CN=98
  Flow (cfs)

  0.14

  0.12

  0.1

  0.08

  0.06

  0.04

  0.02

  0
  0  1  2  3  4  5  6  7  8  9  10  11 12 13 14  15  16  17  18  19  20  21  22  23  24
  Time (hours)