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Probable Maximum Flood at Lake Chippewa near Winter, Wisconsin

Open-File Report 76-800

Prepared in cooperation with the U.S. Department of the Interior, Bureau of Indian Affairs
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Abstract

The probable maximum flood was computed for Lake Chippewa, Wisconsin, and routed through the lake to determine maximum lake stage. The peak discharge of the probable maximum flood at Lake Chippewa was computed to be about 75,000 cubic feet per second, primarily caused by rainfall on the lake. A secondary peak of about 41,000 cubic feet per second was due to streamflow entering Lake Chippewa. The 14-day volume of this flood was 450 ,000 acre-feet. Using an assumed operating procedure for Winter Dam, the maximum lake stage for the probable maximum flood was computed to be about 1,318 feet above mean sea level--about 3 feet below the dam crest and 6 feet above the proposed normal summer operating level. The probability of this flood occurring in any year is less than 1 in 10,000. (Woodard-USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Probable Maximum Flood at Lake Chippewa near Winter, Wisconsin
Series title:
Open-File Report
Series number:
76-800
Edition:
-
Year Published:
1976
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
U.S. Geological Survey
Description:
iii, 14 leaves; Plate