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Poplar River restoration + streambank stabilization

August 2008


The beautiful and historic Poplar River is a high gradient, designated trout stream in Northeastern Minnesota. Beginning in the pristine Sawtooth Mountains, the Poplar River flows through the Lutsen Mountain Ski Resort and joins Lake Superior near Minnesota's oldest resort and the famous Lutsen Lodge.

Unfortunately, the river is in jeopardy and it has been placed on the Minnesota Impaired Waters List for both mercury and turbidity. A recent study estimates that as much as 65% of the turbidity is generated by the "Mega Slump" - a monstrous, nearly vertical slope of exposed red clay located just downstream of the Lutsen Mountain ski area.

EOR collaborated with the experience of national bendway weir expert Dave Derrick and slope stability expert Steve Gale in developing a combination of bendway weirs, toe protection, slope stabilization, and soil-bioengineering techniques that were used to address the complex issues of this project. As politically, logistically, and contextually challenging as this project was, EOR was able to implement these solutions both on-time and significantly under budget.

To learn more see project highlight under Our Work.