Southtowns Record

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

Original document

Same meeting

Text · page 464 of 1174

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WEST SENECA - PRE DEVELOPMENT
D_App D_Pre-Development Model_REV 1 NY-West Seneca 24-hr S1 100-yr Rainfall=5.22"
Prepared by Labella Associates  Printed 7/26/2026
HydroCAD® 10.20-6a s/n 09581 © 2024 HydroCAD Software Solutions LLC  Page 21

  Summary for Reach AP-1: Cayuga Creek

[40] Hint: Not Described (Outflow=Inflow)

Inflow Area =  16.122 ac, 6.63% Impervious, Inflow Depth = 3.17" for 100-yr event
Inflow  =  39.07 cfs @ 12.17 hrs, Volume=  4.256 af
Outflow  =  39.07 cfs @ 12.17 hrs, Volume=  4.256 af, Atten= 0%, Lag= 0.0 min

Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs

  Reach AP-1: Cayuga Creek
  Hydrograph

  Inflow
  39.07 cfs  Outflow
  42
  40
  38
  39.07 cfs
  Inflow Area=16.122 ac
  36
  34
  32
  30
  28
  26
  Flow (cfs)

  24
  22
  20
  18
  16
  14
  12
  10
  8
  6
  4
  2
  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 62 64 66 68 70 72
  Time (hours)

  Page 464 of 1174