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U.S. Army Corps of Engineers
St. Paul District
Programs & Project Management
332 Minnesota St., Suite E1500
St. Paul, MN 55101

(651) 290-5755

cemvp-pm@usace.army.mil

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  • April

    Dredged Material Management Plan: Pool 2, Minnesota

    The purpose of the Pool 2 Dredged Material Management Plan is to prepare a coordinated long-term plan for managing dredged material in Pool 2. This plan was initiated due to increases in dredging volumes throughout Pool 2. Furthermore, three temporary placement sites for dredged material need to be excavated in Lower Pool 2.

  • Dredged Material Management Plan: Pool 9, Minnesota/Wisconsin/Iowa

    The U.S. Army Corps of Engineers operates and maintains the Upper Mississippi River 9-Foot Channel Navigation Project, and one method used to maintain the 9-foot channel is dredging river soils or “material.” The purpose of the Pool 9 Dredged Material Management Plan is to prepare a coordinated long-term plan for managing dredged material in Pool 9. This plan was initiated due to needs for dredged material management at upland placement sites, especially in the upstream reach of the pool.

  • Minnesota River Navigation Project, Minnesota

    The St. Paul District is responsible for maintaining the 9-foot navigation channel on the Minnesota River from its mouth in St. Paul, Minnesota, to river mile 14.7 in Savage, Minnesota, and the 4-foot channel depth from river miles 14.7 to 25.6 in Shakopee, Minnesota. Annual channel maintenance actions are required to maintain the congressionally authorized 9-foot channel depth. These channel maintenance activities consist of dredging, snag removal, and close monitoring of channel conditions.

  • Mississippi River Locks and Dams 2–10: Embankment Rehabilitation Adjacent to Structures

    This embankment rehabilitation project addresses restoring embankments to meet current design standards. Overtopping protection adjacent to concrete structures is the priority for design and construction efforts; no increase in the height of the embankments is planned.

  • Mississippi River Locks and Dams 2–10: Nonstructural Embankment Repairs

    A draft Problem Appraisal Report completed in 2017 found that complete riprap overlay of the embankments to rehabilitate rock degradation was not economically justified but that there are other opportunities to improve scour resilience while improving the ecosystem. Some options include creating upstream berms, creating islands to reduce wave fetch, and providing submergible segments with crest superiority at some dams.

  • September

    Mississippi River Locks and Dams 3–10 Sheet Pile Installation at Auxiliary Locks

    Locks and Dams 3 through 10 have auxiliary chambers. Each auxiliary chamber has only a single set of miter gates that could pass shallow draft navigation traffic if the lock chamber was out of operation and the upstream and downstream pools were equalized. At each site, the U.S. Army Corps of Engineers only installed one set of miter gates. An auxiliary lock chamber was never authorized by Congress, which would have included a second set of miter gates. Since installation, the auxiliary emergency gates have never been used, and the gate operating machinery was never installed.

  • April

    Navigation and Ecosystem Sustainability Program

    The Navigation and Ecosystem Sustainability Program (NESP) seeks to provide a safe, reliable, cost-effective and environment-sustainable waterborne navigation system by implementing switchboats at five locks and constructing mooring cells and seven new 1,200-foot locks. NESP will restore the aquatic and terrestrial habitat to a more natural condition on more than 100,000 acres throughout the system through a wide variety of ecosystem projects.

  • Navigation: Fountain City Service Base Building 9 Replacement, Wisconsin

    The Fountain City Service Base Building 9 Replacement Project is a two-phase project to improve the function and safety throughout the service base. The two objectives of the project are to replace the deteriorated mooring dolphins on the west side of the Fountain City harbor channel and modernize the service base. 

  • Navigation: Fountain City Service Base Sustainment and Modernization, Wisconsin

    The Fountain City Service Base Sustainment and Modernization Project is a two-phase project to improve function and safety throughout the service base. The two objectives of the project are to replace the deteriorated mooring dolphins on the west side of the Fountain City harbor channel and modernize the service base.

  • Navigation: Mississippi River End Cells

    The Lock Guidewalls-Distress Repair Recommendations project for Locks and Dams 2 through 10 has been ongoing since the mid-1990s. The purpose of the end cell projects is to extend the longevity of each site and to reduce operability issues and required maintenance

  • Navigation: Mississippi River Lock and Dam 7 Outdraft

    In 2017, a hydraulic study was launched to identify potential causes of the increased outdraft at Lock and Dam 7 and to investigate and implement measures to alleviate the condition. Flow measurements collected over the last 30 years indicate a significant shift in flows just upstream of Lock and Dam 7, with nearly 20% more flow coming through the existing navigation channel, which must then exit through the dam, exacerbating the outdraft condition.

  • Navigation: Routine Dam Gate Maintenance

    Maintenance of dam spillway gates are required to avoid degradation and eventual replacement. Cost analyses show it is economically favorable to maintain these gates rather than replace them. There are also reliability and safety concerns with allowing the gates to degrade to the point that they must be replaced.

  • Navigation: Upper Mississippi River 9-Foot Channel Navigation Project Maintenance

    The U.S. Army Corps of Engineers is responsible for maintaining a 9-foot navigation channel as an important component of the inland navigation system.

  • December

    Upper Mississippi River - Illinois Waterway System Navigation and Ecosystem Sustainability Program (NESP)

    Navigation and Ecosystem Sustainability Program (NESP) is a long-term program of ecosystem restoration and navigation improvements for the Upper Mississippi River System (UMRS). NESP will improve system capacity and reduce commercial traffic delays through construction of seven new 1,200-foot locks, mooring cells, and switchboat implementation.

  • April

    Lock and Dam 6, near Tremplealeau, Wis.

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

    The U.S. Army Corps of Engineers St. Paul District is responsible for maintaining 244 miles of the Upper Mississippi River 9-foot channel navigation system. The navigation project within the St. Paul District includes 13 locks and dams that are operated and maintained by the U.S. Army Corps of Engineers.
  • WABASHA, Minn. -- The U.S. Army Corps of Engineers, St. Paul District's Dredge Goetz conducts dredging operations in the Mississippi River near Wabasha, Minn., June 8, 2011.

    Upper Mississippi River 9-Foot Channel Navigation Project: Maintenance, Minnesota/Wisconsin/Iowa

    The St. Paul District is responsible for maintaining 244 miles of the Upper Mississippi River 9-Foot Channel Navigation Project for inland navigation.