Projects & Studies
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Critical Infrastructure Security Program (CISP)
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Dam Bridge and Gate Painting: Upper St. Anthony Falls through Lock and Dam 10
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East Two Rivers at Tower, Minnesota
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Effects of Recreational Boating on the Upper Mississippi River System
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General Investigations: Federal Energy Regulatory Commission(FERC) Licensing
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General Investigations: Hydropower, Crown Hydro, Minneapolis, Minnesota
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General Investigations: Hydropower, Ford Plant, Minneapolis, Minnesota
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Hydropower, LSAF Hydro, Minneapolis, Minnesota
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Hydropower, Lock and Dam 2, Hastings, Minnesota
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Hydropower, Upper St. Anthony Falls, Minneapolis, Minnesota
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Integrated Watershed Study: Minnesota River Basin in Minnesota, South Dakota, North Dakota and Iowa
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Lock & Dam 10 Stage 2
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Lock Tow Haulage Units
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Lock and Dam 4 Embankment Environmental Assessment
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Locks and Dams 2 - 10, Embankment Maintenance Study
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Lower Pool 4 Channel and Dredged Material Management Study
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McMillan Island, Mississippi River Channel Maintenance
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Minnesota River Navigation Project
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Mississippi Headwaters Reservoirs Dam Safety Issues
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Mississippi Headwaters Reservoirs Project Sites
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Mississippi River Locks and Dams Nos. 2-10 Embankment Rehabilitation
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Mississippi River Major Maintenance / Rehabilitation
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Mississippi River: Lock & Dam 3 Navigation Safety and Embankments, Minnesota and Wisconsin
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Navigation and Environmental Sustainability Program (NESP)
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Navigation, Mississippi River, Lock Bulkheads and Slot Installation, Minn/Wisc/Iowa
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Operation and Maintenance, Lock and Dam 10 Stage 2
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Reconnaissance Study: Minnesota River Basin in MN, SD, IA and ND
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Recreational Boating Study of the Mississippi River, Pools 4 to 9, Summer 2003
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River Resource Values and Expectation
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Small-Boat Harbor Dredging, St. Paul, Minnesota (Harbor Dredging)
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St. Croix River: Endangered Mussel Conservation - Zebra Mussel Control
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Upper Mississippi River - Illinois Waterway System Navigation Study
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Upper Mississippi River 9-Foot Project - Locks & Dams
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Upper Mississippi River 9-Foot Project Channel Maintenance; MN, WI, IA
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Warroad Harbor and River Harbor Dredging
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Channel Maintenance
Overview
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Sedimentation in the channel is caused by the normal cycle of silt movement, erosion from high water or heavy rains and changes in river currents. To maintain the 9-foot navigation channel, material that settles in the channel area must be removed. Mechanical or hydraulic dredging are methods for the removal of that material.
This material is placed in designated areas along the river. Some of these areas are beneficial use placement areas. Beneficial use of dredged material is the productive use of the material by the public or private sectors. Examples of common beneficial uses of dredged material in the St. Paul District are upland habitat development, wetland creation, aquatic habitat enhancement, creation of areas for bird nesting, beach nourishment, winter road maintenance, levee repair and improvement, aggregate for concrete, lining fly ash pits, bank protection and general purpose fill.
The district is responsible for maintaining 243.6 miles of navigation channel to a depth of at least 9 feet on the Mississippi River from Minneapolis at river mile 857.6 to Guttenberg, Iowa, at river mile 614.0, and 40.6 miles on three tributaries: the Minnesota, St. Croix and Black rivers.
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[Printable Copy]
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