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  • Jacksonville District publishes updated Fernandina Harbor NEPA proposal for public review, comment

    The U.S. Army Corps of Engineers, Jacksonville District, seeks public review and comment regarding

  • Norfolk Harbor Navigation Improvements Project: Modeling of Dredged Material Placement Schemes and Long-Term Sediment Transport at the Dam Neck Ocean Disposal Site

    Abstract: US Army Corps of Engineers–Norfolk District requested assistance with the development and evaluation of dredged-material-placement schemes that evenly distribute placed material and avoid or minimize unacceptable mounding in accordance with the site management and monitoring plan. A multiple placement fate and transport modeling study was conducted to determine the optimal placement plan for dredged material from Thimble Shoals Channel and Atlantic Ocean Channel at the Dam Neck Ocean Disposal Site (DNODS). Provided the large volume of dredged material to be placed at DNODS over a short duration during the construction period, a modeling study was performed using the Geophysical Scale Multi-Block (GSMB) modeling system to determine the transport and fate of placed dredged material at the DNODS that is resuspended by currents and waves over a 2-year period. Six scenarios were undertaken to determine the best path forward. Scenarios 1 and 4 were excluded due to high exceedance of the depth threshold. Scenarios 2, 3, 5, and 6 yielded an approximate 1%–2% dispersal of placed materials from the DNODS during ambient environmental conditions; Scenario 6 yielded the least. Most dispersion occurred during two simulated hurricanes. The model findings generally support the DNODS Environmental Impact Statement and site-designation documents.

  • Temporary Recreation Area Closings To Conduct Dredging Activities at Lake Shelbyville

    The U.S. Army Corps of Engineers at Lake Shelbyville will be performing dredging work on the North end of the lake in 2025. Work will include dredging of the Kaskaskia river channel, starting at the Whitley Creek boat ramp and heading towards the Illinois Highway 32 bridge, located south of Sullivan, IL.

  • LA District commander meets with congressman, discusses Oceanside shoreline mitigation

    U.S. Army Corps of Engineers Los Angeles District commander Col. Andrew Baker met with California’s 49th Congressional District Rep. Mike Levin Feb. 20 to discuss the status and future of Oceanside shoreline mitigation.

  • Lower James River Sediment Transport Modeling: Jordan Point

    Abstract: US Army Corps of Engineers–Norfolk District (NAO) requested assistance from the US Army Engineer Research and Development Center (ERDC) to examine currently used placement sites within the James River, Virginia, initiative area, determine potential risk to critical environmental receptors during placement, and predict the life cycle of the placement sites. The focus of the analysis within this work is the Jordan Point placement site. The far-field, fate-transport modeling at Jordan Point shows relatively low maximum values of suspended sediment concentration (less than 40 mg/L) and deposition values (less than 0.2 cm). Material that is placed at Jordan Point appears to quickly disperse through the system, depositing in thin layers at specific areas. The life-cycle analysis performed for the Jordon Point placement site yielded an estimated useable project life of the Jordan Point placement sites of 26 years with an uncertainty of ±4 years. Analysis showed that 97% of the net sediment deposition in the navigation channel in proximity to this site is from the upper James River, 2% is from downstream sources, and 1% is from the two Jordan Point placement sites.

  • U.S. Army Corps of Engineers Deploys the Murden for Dredging Operations in Lake Montauk

    NEW YORK – The U.S. Army Corps of Engineers (USACE), New York District, is deploying the Wilmington District, shallow draft dredge, Murden, to Lake Montauk to conduct vital dredging operations aimed at maintaining safe and efficient navigation for commercial and recreational vessels.

  • Jacksonville District begins dredging of Palm Beach Harbor

    U.S. Army Corps of Engineers (USACE), Jacksonville District, will begin maintenance dredging of the Palm Beach Harbor, Palm Beach County, Florida, on or around March 3, 2025.

  • Jacksonville District issues scoping letter for Fort Myers Beach Harbor

    (Feb. 13, 2025) - The U.S. Army Corps of Engineers, Jacksonville District (USACE), seeks public comments, views and information regarding the preparation of a supplemental National Environmental Policy Act (NEPA) analysis evaluating alternative placement options for operation and maintenance dredged material from the Fort Myers Beach Harbor (FMBH) Federal Navigation Channel in Lee County, Florida.

  • Notes on Bedload Sediment Collector Deployment: Eau Claire River, Wisconsin

    Purpose: A bedload sediment collector field deployment was conducted during low flow conditions from August 2023 to September 2023 on the Eau Claire River, Wisconsin, to assess the operation and performance of a 12 ft bedload sediment collector (BSC). This initial deployment of the technology served to familiarize the research team with the new 12 ft BSC system in preparation for its potential deployment during high flow conditions and at other locations. The insights from this study are intended to identify opportunities to use this technology, particularly in the Upper Mississippi River navigation system.

  • 2 For 1: Dredging, Sand Placement is Double Benefit for Long Island’s South Shore, Barrier Beaches

    The U.S. Army Corps of Engineers, New York District, has commenced essential maintenance dredging for the Fire Island Inlet and Shores Westerly to Jones Inlet New York Beach Erosion Control and Navigation Project. This critical work, awarded to Norfolk Dredging Company for nearly $37 million, began in November and is expected to continue until early spring 2025.