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  • Largest Great Lakes Dredging Operation Starting Fall 2026

    The U.S. Army Corps of Engineers, Buffalo District and its contractor Michigan-based Ryba Marine Construction Company will begin the largest dredging operation on the Great Lakes this fall. This year’s dredging of Toledo Harbor’s federal navigation channel – which requires the largest quantity of material to be dredged from any Great Lakes harbor – is part of a two-year contract totaling $11.1 million, and ensures accessible depths for large vessels, the continued flow of commodities across the Great Lakes, and the economic viability of United States waterways.

  • Modeling Evaluation of a Bird Island Design in Hampton Roads, Virginia

    Abstract: This report documents a numerical modeling investigation on the sediment transport and morphology changes surrounding designed marine habitats for seabirds in Hampton Roads, Virginia. It assembles and analyzes historical and newly collected wave and hydrodynamic data from the study area. The datasets are used to calibrate and validate coastal wave, hydrodynamic, and sediment transport models. It describes developments of model alternatives that correspond to different bird island designs. It evaluates current and sediment transport fields and seabed volume changes around the island under a representative normal year (2020) and under a storm simulation condition for a 50 yr return synthetic storm with corresponding sea level rise. Model simulations show weak current and sediment transport fields prior to the island construction. With alternative designs of the island, model results show significant changes in magnitudes and spatial distributions of current and sediment transport rate. Analysis of model bed volume changes demonstrates different erosion and deposition trends under the normal environment and under the storm simulation condition. The island design and configuration, including island orientation, island slopes, and material coverage, respond differently to the impact of physical forcing applied in the modeling.

  • Corps of Engineers to begin moving river sand in Pool 3

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, and its contractor, L.S. Marine, Inc., of Inver Grove Heights, Minnesota, will mobilize in the next few weeks, to begin moving 450,000 cubic yards of river sand from the Corps Island temporary placement site near Welch, Minnesota, to a permanent upland placement site.

  • Bigger than a pit stop: How USACE at Napoleon supports the MR340 race

    Starting at the confluence of the Missouri and Kansas rivers, the Missouri American Water MR340 is one of the world's longest nonstop river races. But behind the curtain, the Kansas City District, U.S. Army Corps of Engineers, has played a vital role in making sure the river is ready for racers and commercial navigators alike. This story highlights the decades-long partnership with race organizers and the unique perspective of district employees who have experienced the Missouri River both as stewards of its navigation system and as MR340 competitors.

  • U.S. Army Corps of Engineers plans to dredge three Lake Superior harbors

    DULUTH, Minn. — The U.S. Army Corps of Engineers, Detroit District plans to dredge Lake Superior harbors at Port Wing and Cornucopia, Wisconsin, and Ontonagon, Michigan this summer through fall. The contract was awarded on May 27, 2026, for $1.6 million to Viking Marine Construction LLC of Holland, Michigan to address sediment buildup in these critical Great Lakes harbors.

  • Improved Beneficial Use of Dredged Material (BUDM) Laboratory Methods for Low-Stress Consolidation

    Abstract: The purpose of this Dredging Operations and Environmental Research (DOER) Program technical note (TN) is to present the improved laboratory methods for low-stress consolidation to support the beneficial use of dredged material (BUDM). Despite the growing practice of BUDM to support coastal environments, significant knowledge gaps persist in the behavior (e.g., consolidation and erodibility) of hydraulically placed cohesive sediments. The consolidation of deposited sediment dictates the resultant surface elevation, a key design component controlling the hydroperiod and shear strength of wetland ecosystems, which are key indicators of the long-term health and stability of the wetland. The existing US Army Corps of Engineers (USACE) consolidation testing of ultrasoft materials utilizes settling columns that rely on highly time-consuming, experimental laboratory methods that are prone to human-induced errors. Therefore, an updated laboratory methodology that incorporates scientific advancements to manage consolidation and erodibility measurements is essential to providing practical testing with a higher degree of certainty for BUDM designers and ultimately helping to support USACE’s goal of reaching 70% BUDM.

  • Buffalo Harbor Dredging Starting; Supports Safe Navigation, the Economy and Future Great Lakes Coastal Wetland

    The U.S. Army Corps of Engineers, Buffalo District, will begin dredging operations in Buffalo Harbor to maintain safe and navigable waterways for Great Lakes commercial vessels, cruise ships, recreational boaters and other harbor users on Lake Erie. The Buffalo District awarded a $2.3 million contract in April 2026 to Michigan-based Ryba Marine Construction Co. to complete the work. Dredging operations are expected to start as early as July 18 and will contribute to the creation of a new Great Lakes wetland in Buffalo’s outer harbor.

  • From Dredge to Delta: USACE, Partners Restore Roughly 70 Acres of Wetlands at Deal Island Wildlife Management Area

    A U.S. Army Corps of Engineers, Baltimore District, project to restore degraded wetlands at the Deal Island Wildlife Management Area has reached completion, turning eroding marsh into critical nesting habitat for threatened bird species while keeping the Wicomico River open for commercial navigation.

  • Corps of Engineers begins dredging and research operations in St. Joseph Harbor

    The U.S. Army Corps of Engineers, Detroit District, will commence maintenance dredging in the outer harbor of St. Joseph, Michigan, in early July. Viking Marine Construction, LLC., of Holland, Michigan, will dredge approximately 83,000 cubic yards of sediment from the federal navigation channel in the harbor. The hydraulic dredging will use a submerged pipeline to move sediment a half mile south of the harbor. The project is scheduled to be completed at the end of August.

  • Corps of Engineers temporarily closes West Newton Chute boat landing

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, will close the West Newton Chute boat landing on the Mississippi River near Kellogg, Minnesota, around July 6.