Record Display for the EPA National Library Catalog

RECORD NUMBER: 43 OF 407

OLS Field Name OLS Field Data
Main Title Depth and frequency of floods in Illinois
Author Prugh, Byron J
CORP Author Geological Survey (U.S.); Illinois. Division of Water Resources.
Publisher State of Illinois Dept. of Transportation},
Year Published 1976
OCLC Number 02689914
Additional Subjects Floods--Illinois ; Floods--Mathematical models
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
EJBM  TC424.I3D47 1976 Headquarters Library/Washington,DC 02/28/2007
Abstract
A method is presented for estimating flood depths of 2-, 5-, l0-, 25-, 50-, and 100-year frequency at ungaged sites in Illinois. Data from 177 U.S. Geological Survey gaging sites in Illinois were analyzed by multiple-regression techniques. Equations to predict depth of water above channel bottom for various frequency floods were developed. The 2-year-flood discharge was used as the descriptive variable. The depth-frequency equations assume and should be used only for Illinois streams flowing under natural conditions. They do not apply to streams affected by backwater, or significant artificial controls, or in situations where ice or debris jams cause peak stages.
Notes
Bibliography: p. 26.