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Evaluation of alternative reservoir-management practices in the Rock River basin, Wisconsin

Water-Resources Investigations Report 83-4186

Prepared in cooperation with the Wisconsin Department of Natural Resources
By:
and

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Abstract

Simulation of the operation of upstream impoundments in the Rock River basin to reduce spring floods showed that such operation would reduce flood peaks by 0.11 foot on the average, and would increase flood peaks some years. The most significant reductions would occur during the average- size floods, whereas little or no reductions would occur for larger and smaller floods. Modifying the simulation of impoundment operations to reduce larger floods produced only minor reductions in flood peaks for the larger floods, and slightly increased flood peaks for average-size floods.

Alternative operating procedures for Indianford Dam which controls Lake Koshkonong were simulated with estimated power generation and the use of flashboards during the summer, neither of which are currently used. The simulation showed that, for most periods without significant runoff, the stage of Lake Koshkonong would tend toward the stage at which power generation was prohibited. It also showed that use of flashboards to raise the minimum lake stage during the summer would not raise the peak stage of the lake measurably if the flashboards were removed when the stage rose above its normal level. Simulation showed that winter drawdown of Lake Koshkonong would not lower spring flood peaks significantly downstream.

Study Area

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Evaluation of alternative reservoir-management practices in the Rock River basin, Wisconsin
Series title:
Water-Resources Investigations Report
Series number:
83-4186
Year Published:
1984
Language:
English
Publisher:
U.S. Geological Survey
Contributing office(s):
Wisconsin Water Science Center
Description:
v, 21 p.
Country:
United States
State:
Wisconsin
County:
Columbia County, Dane County, Dodge County, Fond du Lac County, Green County, Green Lake County, Jefferson County, Rock County, Washington County, Waukesha County
Other Geospatial:
Rock River
Online Only (Y/N):
N
Additional Online Files (Y/N):
N