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 26 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 1-yr Rainfall=1.88"
Prepared by Greenman-Pedersen, Inc  Printed 12/18/2025
HydroCAD® 10.20-7a s/n 04560 © 2025 HydroCAD Software Solutions LLC  Page 17

  Subcatchment AWP: Area to Western Property
  Hydrograph

  0.16
  Runoff
  0.15
  0.14 cfs
  extreme_precip_tables_output (29) 24-hr S1 1-yr
  0.14  Rainfall=1.88"
  0.13  Runoff Area=0.300 ac
  Runoff Volume=0.012 af
  0.12  Runoff Depth>0.49"
  0.11  Flow Length=89'
  Slope=0.0284 '/'
  0.1  Tc=13.6 min
  CN=80
  Flow (cfs)

  0.09
  0.08
  0.07
  0.06
  0.05
  0.04
  0.03
  0.02

  0.01
  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)