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Estimating magnitude and frequency of floods for Wisconsin urban streams

Water-Resources Investigations Report 86-4005

Prepared in cooperation with the Wisconsin Department of Transportation, Southeastern Wisconsin Regional Planning Commission, and Milwaukee Metropolitan Sewage Commission
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Abstract

Equations for estimating magnitude and frequency of floods for Wisconsin streams with drainage basins containing various amounts of existing or projected urban development were developed by flood-frequency and multiple-regression analyses.

Multiple-regression techniques were used to develop equations for estimating flood frequencies at ungaged urban sites. The flood-frequency equations are based on data from 32 urban gaging stations, including 19 crest-stage gages and 13 rainfall-runoff gaging stations. Significant characteristics in the equations are drainage area and impervious area. Standard errors of estimate for the regression equations ranged from 32%-39%. Separate equations were developed for Milwaukee County. The USGS Distributed Routing Rainfall-Runoff Model-Version II was used to extend records by synthesis for the 13 rainfall-runoff urban stations. (Author 's abstract)

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Estimating magnitude and frequency of floods for Wisconsin urban streams
Series title:
Water-Resources Investigations Report
Series number:
86-4005
Year Published:
1986
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Wisconsin Water Science Center
Description:
iv, 18 p.
Country:
United States
State:
Wisconsin
City:
Green Bay, Janesville, Madison, Milwaukee, Superior, Wausau
Online Only (Y/N):
N
Additional Online Files (Y/N):
N