Magnitude and frequency of floods for urban streams in Alabama, 2007

Scientific Investigations Report 2010-5012
Prepared in cooperation with the Alabama Department of Transportation
By:  and 



Methods of estimating flood magnitudes for exceedance probabilities of 50, 20, 10, 4, 2, 1, 0.5, and 0.2 percent have been developed for urban streams in Alabama that are not significantly affected by dams, flood detention structures, hurricane storm surge, or substantial tidal fluctuations. Regression relations were developed using generalized least-squares regression techniques to estimate flood magnitude and frequency on ungaged streams as a function of the basin drainage area and percentage of basin developed. These methods are based on flood-frequency characteristics for 20 streamgaging stations in Alabama and 3 streamgaging stations in adjacent States having 10 or more years of record through September 2007.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Magnitude and frequency of floods for urban streams in Alabama, 2007
Series title Scientific Investigations Report
Series number 2010-5012
DOI 10.3133/sir20105012
Year Published 2010
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Alabama Water Science Center
Description iv, 17 p.
State Alabama
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