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Tag: Mississippi River
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  • Public Input Sought on Forestry Rehabilitation Project in Mississippi River Pool 18

    The U.S. Army Corps of Engineers and its Upper Mississippi River Restoration Program partners are in the early stages of planning for a habitat rehabilitation project on the Mississippi River in Pool 18 and are seeking public input through Oct. 9.
  • Corps awards $2.5 million contract for Lock and Dam 2 guidewall repairs

    The U.S. Army Corps of Engineers, St. Paul District, awarded a $2.5 million contract to Dubuque Barge and Fleeting Service Company doing business as Newt Marine Service out of Dubuque, Iowa, to make repairs to the upper guidewall at Lock and Dam 2, near Hastings, Minnesota.
  • Corps of Engineers hosts Lock and Dam 9 open house

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, is hosting an open house at Lock and Dam 9 on the Mississippi River, near Lynxville, Wisconsin, on Sept. 28.
  • Corps of Engineers hosts Lock and Dam 7 open house

    The U.S. Army Corps of Engineers, St. Paul District, is hosting an open house at Lock and Dam 7 on the Mississippi River near La Crescent, Minnesota, Sept. 21.
  • USACE Chief of Engineers signs Chief’s Report recommending vital Memphis District ecosystem restoration study to Congress

    U.S. Army Corps of Engineers (USACE) Commanding General and 55th Chief of Engineers Lt. Gen. Scott A. Spellmon has signed a Chief’s Report recommending the Hatchie–Loosahatchie Aquatic Ecosystem Restoration Study to Congress for authorization. The study began in 2021 with a Feasibility Cost Sharing Agreement signing between the Memphis District and the Lower Mississippi River Conservation Committee (LMRCC), the non-federal sponsor. It was conducted to examine and address problems, opportunities, and solution-viability associated with Mississippi River ecosystem degradation along the Hatchie-Loosahatchie River reach, miles 775-736. The Chief’s Report outlines USACE’s Ecosystem Restoration Plan to address ecologically important habitats along this 39-mile Mississippi River stretch in Arkansas and Tennessee without causing conflict with existing USACE navigation and flood-risk management mission areas.
  • Corps of Engineers inducts Forest Lake, Minn., resident to district’s Hall of Fame

    The U.S. Army Corps of Engineers, St. Paul District, recently named Jon Hendrickson of Forest Lake, Minnesota, as its 2024 hall of fame inductee.
  • Mississippi River Project Balances Aquatic Ecosystems and Navigation

    Is it possible to promote a healthier and more resilient Mississippi River ecosystem without impacting navigation? The Upper Mississippi River Restoration, or UMRR, Program was initiated to do just that. Authorized by the Water Resources Development Act of 1986, UMRR was the first environmental restoration and monitoring program undertaken on a large river system in the United States.
  • Corps of Engineers hosts open house at Upper St. Anthony Lock and Dam

    The U.S. Army Corps of Engineers, St. Paul District, is hosting an open house at the Upper St. Anthony Lock and Dam on the Mississippi River in Minneapolis on July 27.
  • Corps of Engineers to host an open house at Lock and Dam 2

    The U.S. Army Corps of Engineers, St. Paul District, is hosting an open house at Lock and Dam 2 on the Mississippi River in Hastings, Minnesota, on Saturday, July 20.
  • Mississippi River AdH Model Modification and Evaluation, Thebes, Illinois, to Birds Point, Missouri, Reach

    Abstract: A calibrated hydrodynamic and sediment transport model of the Upper Mississippi River, from Thebes, Illinois, to Birds Point, Missouri, was created to investigate hydraulics and sediment transport in the river channel and across the Dogtooth Island Peninsula (DIP) as the result of the Len Small levee breach. A hydrodynamic model was developed for the reach and calibrated to stage and breach outflow discharge data for the floods of 2011, 2015–2016, and 2017. The hydrodynamic model was used to investigate breach outflow discharges and shear stress distribution over the DIP. Soil and geologic maps were investigated to determine soil parameters and the long-term stability of soil formations on the DIP. The Upper Mississippi River sediment transport model was built upon the hydrodynamic model and soil mapping efforts. The sediment transport model was calibrated to the 2015 and 2017 flood events. Calibration data were limited to changes in elevation, which were then areally averaged, computed from comprehensive channel surveys and lidar data for the DIP. This model provides a solid foundation for comparing alternative measures to minimize further erosion of the DIP and for analyzing the risk of a channel cutoff occurring.