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  • March

    Planning Assistance to States (PAS): Mississippi River Water Level Management

    In April 2017, the Upper Mississippi River Water Level Management Workshop facilitated discussion about interest and ability in achieving routine, systemic, large-scale water level management – i.e., what that would look like, associated challenges, and recommendations for partnership engagement and action.

  • September

    Mississippi River Locks and Dams 2–10 Miter Gate Replacements

    Miter gates are integral to Mississippi River Locks and Dams, 2 through 10. Miter gates are comprised of two leaves that provide a closure at one end of a lock. Locks and Dams 2 through 10 have utilized the same miter gates since their inception. Over time, distress has been observed and has led to serviceability and safety issues. The purpose of this project is to restore the gates, increasing longevity and operational readiness, while decreasing repair costs and downtime due to maintenance of failure.

  • Continuing Authorities Program: Beneficial Use of Dredged Material, Section 204, Upper Pool 4 – Lake Pepin

    Lake Pepin extends about 22 miles in length from the delta of the Chippewa River to approximately River Mile 787 which is about 3 miles downstream of Red Wing, Minnesota. Upper Lake Pepin consists of channel border islands and backwater lakes grading into an expansive, shallow open water area with little physical structure. Sedimentation and sediment resuspension have caused a loss in water depth diversity of the backwater lakes and isolated wetlands above Lake Pepin as well as a loss in aquatic vegetation.

  • February

    Lock and Dam 6, near Tremplealeau, Wis.

    Upper Mississippi River 9-Foot Channel Navigation Project Locks and Dams, Minnesota/Wisconsin/Iowa

    The St. Paul District is responsible for maintaining 244 miles of the Upper Mississippi River 9-foot channel navigation system from the head of navigation in Minneapolis, Minnesota, to Guttenberg, Iowa. The project is located in or contiguous to Minnesota, Wisconsin and Iowa. The navigation project within the St. Paul District includes 13 sets of locks and dams that are operated and maintained by the U.S. Army Corps of Engineers. In addition to the locks and dams the project includes channel maintenance, recreation and natural resource activities.