Southtowns Record

PBA03.12.2026packet

Government
Town of West Seneca
Board
Planning Board
Meeting
Mar 12, 2026, 6:00 p.m.
Posted by publisher
Feb 25, 2026
Kind
Agenda packet
Topics
Water, sewer and drainage, Roads and traffic, Zoning and land use

Original document

Same meeting

Text · page 26 of 65

Read the whole document on one page (all 65 pages, each with its own heading)

25-4181 storm calcs - existing
Prepared by Carmina Wood Design  Printed 2/11/2026
HydroCAD® 10.20-8a s/n 05019 © 2025 HydroCAD Software Solutions LLC  Page 1

  Rainfall Events Listing (selected events)

  Event#  Event  Storm Type  Curve  Mode  Duration  B/B  Depth  AMC
  Name  (hours)  (inches)
  1  1-Year  Type II 24-hr  Default  24.00  1  1.87  2
  2  10-Year  Type II 24-hr  Default  24.00  1  3.14  2
  3  25-Year  Type II 24-hr  Default  24.00  1  3.84  2
  4  100-Year  Type II 24-hr  Default  24.00  1  5.23  2

  Page 26 of 65