PB Agenda Packet 8.13.2026

Government: Town of West Seneca
Board: Planning Board
Meeting: Aug 13, 2026, 6:00 p.m.
Posted by publisher: Jul 28, 2026
Kind: Agenda packet
Topics: Water, sewer and drainage, Roads and traffic, Housing, Zoning and land use, Parks and recreation, Budget and taxes, Public safety

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Text · page 721 of 1174

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24-4113 WEST SENECA EXCHANGE EXISTING  Type II 24-hr 25-Year Rainfall=3.84"
Prepared by Carmina Wood Design  Printed 7/13/2026
HydroCAD® 10.20-7a s/n 05019 © 2025 HydroCAD Software Solutions LLC  Page 24

  Subcatchment 2S: Existing - Central
  Hydrograph

  Runoff
  105  98.15 cfs
  100
  95  Type II 24-hr
  90
  85  25-Year Rainfall=3.84"
  80
  75  Runoff Area=22.800 ac
  70
  65
  Runoff Volume=6.425 af
  Flow (cfs)

  60
  55
  Runoff Depth=3.38"
  50
  45
  Flow Length=2,297'
  40  Tc=12.7 min
  35
  30  CN=96
  25
  20
  15
  10
  5
  0
  0  2  4  6  8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60
  Time (hours)

  Page 721 of 1174