Low-flow characteristics of streams in the Pecatonica-Sugar River basin, Wisconsin

Open-File Report 79-1274- Pecatonica River, Sugar River
Prepared in cooperation with the Wisconsin Department of Natural Resources



The purpose of this report is to describe low-flow characteristics of streams in the Pecatonica-Sugar River basin, Wisconsin, where streamflow data have been collected, and to present equations for estimating low-flow characteristics at ungaged sites.

Low-flow characteristics were estimated for 11 gaging stations, 25 low-flow partial-record stations, and 207 miscellaneous sites in the basin. Estimates of flow duration were made at the 11 gaging stations. Also, low-flow discharge measurements are listed for 16 miscellaneous sites where insufficient data were available to estimate low-flow characteristics.

Four equations are provided to estimate low-flow characteristics at ungaged sites and at sites where one base-flow discharge measurement is available. The equations were determined from multiple-regression analyses that related low-flow characteristics at gaging stations and partial-record stations to basin characteristics. Drainage area and base-flow index were the most significant parameters for these analyses.

The standard error of estimate of the 7-day, 10-year low flow was provided. The average SE-j f iQ in the basin ranged from 10 to 64 percent and was dependent on the amount of low-flow data available.

Study Area

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Low-flow characteristics of streams in the Pecatonica-Sugar River basin, Wisconsin
Series title Open-File Report
Series number 79-1274
Chapter Pecatonica River, Sugar River
DOI 10.3133/ofr791274
Year Published 1979
Language English
Publisher U.S. Geological Survey
Contributing office(s) Wisconsin Water Science Center
Description Report: iv, 92 p.; 2 Plates: 17.00 x 9.00 inches
Country United States
State Wisconsin
County Dane County, Grant County, Green County, Iowa County, Lafayette County, Rock County
Other Geospatial Pecatonica River, Sugar River
Scale 500000
Online Only (Y/N) N
Additional Online Files (Y/N) Y
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