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  • Keeping the river open for business, dredging contract awarded

    The Memphis District U.S. Army Corps of Engineers is responsible for keeping the Mississippi River open for commercial navigation year-round. One way the district does this is through contract dredging, which keeps the river channel at a depth that allows the river barge industry to dependably transport goods up and down the river. Ensuring the district delivers on this charge, the Memphis District recently awarded a contract in the amount of $7,335,450 to Great Lakes Dredge and Dock, LLC for the rental of a 24-inch hydraulic cutterhead dredge, discharge pipe, and attendant plant. The contract was awarded June 2, 2022, with an anticipated completion date of Feb. 28, 2023.

  • ACM casting project complete, revetment prepared for season ahead

    “The project is designed to supply the current Mat Sinking Unit with Articulated Concrete Mattress (ACM) to use for revetment to maintain a safe and reliable navigation channel for commercial towboats in the Mississippi River,” Project Manager Zach Cook said. “If the project were not completed, there could be failures or cutoffs on the Mississippi River banks.” Cook is describing the recently completed project named “Richardson Landing Articulated Concrete Mattress Casting – Mississippi River Channel Improvement Project” located at Richardson Landing, near Drummonds, Tennessee, Mississippi River Mile 769.

  • Corps of Engineers reopens Clamshell Lake boat landing in Crosslake

    The U.S. Army Corps of Engineers, St. Paul District, recently completed construction work at its Clamshell Lake boat access in Crosslake, Minnesota. The boat ramp is now open for use.

  • Corps seeks comments on updated Pool 6 dredged material management plan

    The U.S. Army Corps of Engineers, St. Paul District, released its updated Mississippi River Pool 6 draft dredged material management plan and Environmental Assessment, or EA, today, June 14.

  • Army Dive Team restores vital district asset

    “The highest risk and resource-intensive Mission Essential Task (MET) we collectively train on is port opening and harbor clearance,” 511th Engineer Dive Detachment Commander Cpt. Olivia Schretzman said. “If we do not provide accurate infrastructure assessments, open ports, repair bridge sections, or clear obstacles in inland waterways, we negatively impact all sustainment and maneuver operations. It is a no-fail mission.” Schretzman commands the 511th Engineer Dive Detachment, a 25-Soldier team that deploys worldwide, performing complex and dangerous engineer tasks at depths of up to 190 feet. Schretzman explained that simulating a damaged bridge is a difficult task, so when the Memphis District reached out for assistance, both parties would benefit from the job. “The Ensley Engineer Yard had a partially sunken bridge that needed repairs, and we needed high-intensity port opening training,” Schretzman said. “This operation became known as Operation Mississippi Freedom.”

  • Corps of Engineers set to begin island construction in Pigs Eye Lake

    ST. PAUL, Minn. – A U.S. Army Corps of Engineers, St. Paul District, contractor, LS Marine, Inc., of Inver Grove Heights, Minnesota, will begin construction work in Pigs Eye Lake this week.

  • Corps of Engineers set to dredge St. Paul Boat Harbor

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, will begin dredging the St. Paul, Minnesota, Small Boat Harbor this week.

  • Corps of Engineers seeks public comments on McMillan Island dredged material placement

    The U.S. Army Corps of Engineers, St. Paul District, is seeking comments on a draft Environmental Assessment, or EA, for the placement of dredged material, or river sand, that occurred in 2019 within the Mississippi River in Clayton County, Iowa.

  • Construction to start at Locks and Dams 6 and 10

    The U.S. Army Corps of Engineers, St. Paul District, will begin construction in early June on Lock and Dam 6 in Trempealeau, Wisconsin, and Lock and Dam 10 in Guttenberg, Iowa, to enhance the auxiliary chambers of each structure.

  • Low-Sill Control Structure Gate Load Study

    Abstract: The effort performed here describes the process to determine the gate lifting loads at the Low-Sill Control Structure. To measure the gate loads, a 1:55 Froude-scaled model of the Low-Sill Control Structure was tested. Load cells were placed on 3 of the 11 gates. Tests evaluated the gate loads for various hydraulic heads across the structure. A total of 109 tests were conducted for 14 flows with each flow having two gate settings provided by the United States Army Corps of Engineers, New Orleans District. The load data illustrated the potential for higher gate lifting loads (GLL) to occur at the mid-range gate opening (Go) for Gates 3 and 6. While for Gate 10, the highest GLL (452 kips, maximum load in testing) was at a Go = 4.2 ft. Conversely, for the low-flow bays, the highest load occurred at Go = 24.86 ft.