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Scientific Investigations Report 2013–5110

Prepared in cooperation with the Minnesota Department of Transportation

Methods and Results of Peak-Flow Frequency Analyses for Streamgages in and bordering Minnesota, through Water Year 2011

By Erich W. Kessler, David L. Lorenz, and Christopher A. Sanocki

Thumbnail of and link to report PDF (2.43 MB)Abstract

Peak-flow frequency analyses were completed for 409 streamgages in and bordering Minnesota having at least 10 systematic peak flows through water year 2011. Selected annual exceedance probabilities were determined by fitting a log-Pearson type III probability distribution to the recorded annual peak flows. A detailed explanation of the methods that were used to determine the annual exceedance probabilities, the historical period, acceptable low outliers, and analysis method for each streamgage are presented. The final results of the analyses are presented.

First posted June 18, 2013

For additional information contact:
Director, Minnesota Water Science Center
U.S. Geological Survey
2280 Woodale Drive
Mounds View, Minnesota 55112

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Suggested citation:

Kessler, E.W., Lorenz, D.L., and Sanocki, C.A., 2013, Methods and results of peak-flow frequency analyses for streamgages in and bordering Minnesota, through water year 2011: U.S. Geological Survey Scientific Investigations Report 2013–5110, 43 p.,




Methods Used for Peak-Flow Frequency Analyses

Results of Peak-Flow Frequency Analyses


References Cited


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