Long Prairie River

The Long Prairie River watershed includes more than 220 lakes greater than 10 acres in size and 965 miles of rivers and streams. The Long Prairie River begins in Douglas County and flows through Todd and Morrison counties before entering the Crow Wing River south of Motley. The dominant land use within the watershed is agricultural (47%), while grasslands and forests make up 8% and 20% respectively, water and wetlands 18%, and 7% is urban. The watershed is within the North Central Hardwood Forest as well as the Northern Lakes and Forests ecoregions.

    What's being done

    Monitoring and assessment

    Biological, chemistry, and flow monitoring occurred in 2011 on several key stream reaches throughout the watershed. Volunteers and local government units, in addition to MPCA staff, conducted monitoring on several key waterbodies throughout the watershed. As a result, 13 impaired stream reaches and 10 impaired lakes have been identified. 

    Strategy development for restoration and protection

    The WRAPS report contains strategies to address the impaired reaches and to protect the unimpaired waterbodies throughout the watershed. The Long Prairie River TMDL study was completed to address low dissolved oxygen in 2005. Efforts are underway to implement strategies to address the dissolved oxygen impairment. A TMDL study was approved in 2017, which addresses the nutrient impairments for seven lakes and bacteria impairments for three of the streams identified during the monitoring process.

    Implementation plans