US Army Corps of Engineers
St. Paul District Website

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Tag: Lock and Dam 1
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  • March

    Disposition Study, Lower St. Anthony Falls Lock and Dam, and Lock and Dam 1, Upper Mississippi

    Determine whether or not continued operation and ownership of Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 are in the federal interest, and if not, provides supporting information for deauthorization of the project purposes and disposal of the property. Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 are both located on the Mississippi River in Minneapolis, Minnesota.
  • February

    Mississippi River Lock and Dam 1, Ambursen Dam Downstream Repair

    Lock and Dam 1 is located on the Minneapolis side of the Mississippi River. The purpose of this project is to re-establish armor downstream of the concrete apron. The existing rock protection consists of grouted derrick stone. This stone bedding has broken up and washed downstream, exposing bedding material and risking failure of the wooden piles and sheet pile located underneath the existing concrete apron.