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U.S. Army Corps of Engineers
St. Paul District
Programs & Project Management
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St. Paul MN 55101

(651) 290-5755.

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Posted 9/12/2016

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Updated September 2017


Location/Description
The County Highway M study area is located approximately 1 mile northeast of the village of Colfax, Wisconsin in west-central Wisconsin along the Red Cedar River in Dunn County. The site is approximately 75 miles east of St. Paul, Minnesota.

An area of County Highway M along the east bank of the Red Cedar River northeast of Colfax, Wisconsin is being threatened by erosion. The erosion is occurring along the outside bend of the river. Based on surveys, a stretch of river bank that is approximately 500 feet long is actively eroding where the top of bank has encroached on the right of way for County Highway M. Currently the top of bank is within 10-15 feet of the shoulder at the center of the site. Further erosion would lead to a significant safety concern as the bank drops off approximately 50 feet to the water surface below.

County Highway M is a heavily trafficked road which provides many farmsteads in the area with access to Colfax, Wisconsin. The Wisconsin Department of Transportation estimates the average daily traffic of section of County Highway M to be approximately 910 cars.

Status

The Dunn County Public Works Department requested a study on October 30, 2015.  In April 2016 the U.S. Army Corps of Engineers, St. Paul District received $50,000 to initiate a feasibility study.  A federal interest determination was completed in June 2016 and was approved in July 2016.

The feasibility study is nearing completion and has evaluated an array of alternatives designed to stabilize the erosion that is currently threating County Road M. The feasibility study and the environmental assessment will be completed in fall 2017.


Authority
Section 14 of the 1946 Flood Control Act, as amended.

Fiscal
The first $100,000 of the project is fully federally funded. Any remaining study costs will be split 50-50 between the Federal government and the non-Federal sponsors. It is anticipated the study will be completed for the first $100,000. The design and construction phase of the project will be cost shared at 65 percent Federal and 35 percent non-Federal. The total Federal contribution is limited to $10 million. The lands, easements, rights-of-way, relocations and disposal areas (LERRDs) necessary for construction, operation and maintenance of the project are the responsibility of the local sponsor.

Federal funds allocated to date $100,000

Dunn County Highway M St. Paul District Streambank Protection U.S. Army Corps of Engineers