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Tag: dredging
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  • U.S. Army Corps of Engineers Issues IPOP Project Permit

    Today, the U.S. Army Corps of Engineers Pacific Ocean Division announced that it has issued a permit to IPOP, LLC to dredge and dispose of material in U.S. waters near Nome, Alaska.
  • USACE seeks comments on proposed work in Narragansett Bay in North Kingstown, Rhode Island

    The U.S. Army Corps of Engineers, New England District received a permit application to conduct work
  • Corps of Engineers begins Grays Harbor maintenance dredging April 8

    U.S. Army Corps of Engineers hopper dredge vessels Yaquina and Essayons begin Grays Harbor outer harbor maintenance dredging, April 8. Maintenance and navigation dredging are required in harbor areas, ports, and marinas, to support the state's economy.
  • Pilot Project Using Tickler Chains in Lieu of Deflectors at Fire Island Inlet to Moriches Inlet, New York, Borrow Sites

    Abstract: Risk for incidental take of sea turtles and sturgeon exists during hopper dredging operations throughout turtle and sturgeon habitats. Since 1992, draghead deflectors have been the main engineering tool used to minimize incidental hopper dredging takes of sea turtles and are also thought to reduce the chance of sturgeon impingement entrainment. Although reduced, turtle takes still happen annually, and the draghead deflectors reduce dredging productivity, increase fuel usage, and increase costs of operations. As such, there remains a need to research alternative turtle avoidance measures. The non-US dredging industry has used various versions of an engineering control called tickler chains (TC) in lieu of deflectors. If effective, TC could lower dredging costs and increase production in comparison to deflectors. This technical report describes a pilot study where TC were used in lieu of deflectors at Fire Island Inlet, New Y0rk. To the authors’ knowledge, this is the first time since the early 1990s that hopper-dredging has occurred without draghead deflectors along the east coast. No takes were recorded during the pilot study; however, no research was done to determine if sea turtles or sturgeon interacted with the TC. Recommendations for future TC research is provided in this technical report.
  • A Beneficial Placement Decision Support Framework for Wetlands: Case Study for Mobile Harbor, USA

    Abstract: The US Army Corps of Engineers, in the responsibility of maintaining navigational infrastructure, has a unique opportunity to improve coastal wetland resiliency and conserve coastal natural infrastructure through the beneficial use of dredged material for wetland restoration. Opportunities are widespread, and tools such as biophysical models can aid coastal managers in assessing habitat vulnerability and planning restoration. In this study, the Marsh Equilibrium Model was utilized in concert with observed data to predict future conditions and evaluate potential effects of beneficial use of dredged material to restore marshes in Mobile Harbor, Alabama. A range of site conditions and two restoration strategies were considered, and the subsequent impact to dredged material management area volumes evaluated. Results showed that wetland restoration via the thin-layer placement of dredged material can restore marsh elevation to combat sea level rise and conserve fill capacity at dredged material management areas. This approach is demonstrated for adoption nationwide by coastal managers.
  • USACE Jacksonville announces changes to Brevard Mid-Reach, South Reach beach renourishment

    USACE Jacksonville District announces changes to the 2024 Brevard County beach renourishment project due to delays in equipment availability.
  • Corps of Engineers Begins Dredging Muskegon Harbor, First of Season

    The U.S. Army Corps of Engineers, Detroit District began dredging today, March 8, in Muskegon Harbor to remove about 133,000 cubic yards of sediment from the federal navigation channel. The project marks the start of the 2024 Detroit District dredging season on the Western Michigan shoreline of Lake Michigan to maintain Great Lakes navigation for commercial shipping to harbors along Western Michigan.
  • Hurdles to Beneficial Use of Dredged Material: Root Cause Analysis

    Purpose: This technical note (TN) summarizes high points of an internal review of US Army Corps of Engineers (USACE) dredging and dredged material management practices, specifically beneficial use of dredged material (BUDM), that USACE manages from various navigation channels and ports around the nation.
  • Jacksonville District begins mobilizing for St. Augustine Beach renourishment

    ST. AUGUSTINE BEACH, Fla. The U.S. Army Corps of Engineer Jacksonville District has begun equipment mobilization for the re-nourishment of the St. Johns County, St. Augustine Beach, federal shore protection project.
  • Leaders with Corps, city meet to discuss next steps on San Clemente Beach Nourishment project

    The U.S. Army Corps of Engineers Los Angeles District commander met with the mayor of San Clemente Feb. 9 to discuss the San Clemente Beach Nourishment project. The two leaders — Col. Andrew Baker and Mayor Victor Cabral — walked along the project site near the San Clemente Pier, while discussing the way forward and addressing some of the city’s concerns. They were accompanied by LA District Project Manager Doland Cheung and San Clemente Coastal Administrator Leslea Meyerhoff.