Southtowns Record

PBA06.11.2026packet

Government
Town of West Seneca
Board
Planning Board
Meeting
Jun 11, 2026, 6:00 p.m.
Posted by publisher
Jun 3, 2026
Kind
Agenda packet
Topics
Water, sewer and drainage, Housing, Zoning and land use, Roads and traffic, Parks and recreation, Budget and taxes, Public safety

Original document

Same meeting

Text · page 541 of 849

Read the whole document on one page (all 849 pages, each with its own heading)

23-4121 storm calcs - Proposed  Type II 24-hr 10-Year Rainfall=3.14"
Prepared by Carmina Wood Design  Printed 5/14/2026
HydroCAD® 10.20-8a s/n 05019 © 2025 HydroCAD Software Solutions LLC  Page 19

  Subcatchment 2S: Proposed - South
  Hydrograph

  Runoff
  4.85 cfs
  5
  Type II 24-hr
  10-Year Rainfall=3.14"
  4
  Runoff Area=93,939 sf
  Runoff Volume=15,867 cf
  Flow (cfs)

  3  Runoff Depth=2.03"
  Flow Length=627'
  2  Tc=19.8 min
  CN=89
  1

  0
  5  10  15  20  25  30  35  40  45  50  55  60  65  70
  Time (hours)

  Page 541 of 849