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  • Cleveland Harbor stakeholders seek comment regarding Cleveland Harbor dredged material management plan

    The U.S. Army Corps of Engineers (USACE), Buffalo District and the Cleveland Harbor stakeholders have released a scoping information packet to begin a dredged material management plan for Cleveland Harbor.

  • LTC Jason Toth: USACE Buffalo District is ready to deliver

    The mission of the U.S. Army Corps of Engineers is to deliver engineering solutions for the Nation’s toughest challenges, and that is exactly what USACE Buffalo District has been doing and will continue to do for the lower watershed of lakes Erie and Ontario.

  • Multiple river dredging contracts awarded

    The U.S. Army Corps of Engineers, Detroit District, recently awarded contracts for maintenance dredging of the Detroit River, Saginaw River and St. Clair River all in Michigan. The contracts were separately awarded to Morrish-Wallace Construction Inc., of Cheboygan, Michigan, (d.b.a.) Ryba Marine Construction. These dredging projects help maintain the Great Lakes navigational channel to keep cargo moving – products like iron ore, limestone, coal and cement.

  • PUBLICATION NOTICE: Sediment Sorting by Hopper Dredging and Pump-Out Operations: Conceptual Model and Literature Review

    Abstract: Dredged sediment placed on beaches or nearshore environments is customarily evaluated for compatibility with the native beach sediment to avoid unintended impacts to economic, environmental, or recreational resources. Consequently, some state regulatory authorities establish limits upon the fine-grained content for sediment designated for placement on certain beaches and nearshore environments. Hopper dredging operations for beach and nearshore placement typically include periods of overflow, which is recognized to produce some degree of separation between the size fractions of the dredged sediment. The degree of separation and the controlling factors of separation are presently poorly known and are the subject of this research. This report provides a conceptual model of the hopper dredging and placement processes, including the relevant processes associated with hopper dredge-associated sediment dynamics, generation and transport of the overflow sediment plume, and sediment winnowing at the beach outflow. Prior research is described, and knowledge gaps are identified. Finally, a research plan to validate prior research and to address knowledge gaps is presented. An annotated bibliography of relevant literature is given in an appendix. Documentation of the planned research presented herein will appear in future publications associated with this study.

  • Corps opens public comment on Okeechobee Waterway maintenance dredging from Crossroads to St. Lucie Lock and Dam

    The U.S. Army Corps of Engineers, Jacksonville District opens public comment on the Draft Environmental Assessment (EA) and proposed Finding of No Significant Impact (FONSI) for the operation and maintenance dredging of the Okeechobee Waterway (OWW) from the intersection of the OWW and the Intracoastal Waterway (IWW), locally known as the Crossroads, to the St. Lucie Lock and Dam in Martin County, Florida. Public comment will be accepted through July 15, 2020.

  • Memphis Revetment Season in full swing

    The Memphis District Revetment season officially began this year on June 11, with District Commander Col. Zachary Miller hosting a kickoff meeting at the Ensley Engineer Yard to get things started. “Protecting the Mississippi River banks keeps the channel in place, which maintains the necessary depth and alignment that allows the thousands of tows to travel up and down the river year round,” the commander said. “Without this work, the river would shift resulting in new, shallow cutoffs that could not be safely traveled.”

  • PUBLICATION NOTICE: Nearshore Placement Workshop 2019: Sediment Nourishment of the Nearshore Environment

    Abstract: The Coastal Inlets Research Program and the Regional Sediment Management Program co-sponsored the 2019 Nearshore Placement Workshop. Thirty-four participants from the US Army Engineer Research and Development Center (ERDC) and numerous districts met in Vicksburg on January 29–30, 2019, as a part of the workshop. This workshop was convened to facilitate discussions on concerns districts face regarding nearshore placements from resource agencies and stakeholders, challenges to placing sediment in the nearshore, and future research needs. The workshop included ERDC presentations on the state of the science regarding nearshore placements; specific implementations of nearshore placements within various US Army Corps of Engineers districts; break-out-style discussions on nearshore placement challenges and potential paths forward; and group discussions on metrics for success, quantification of benefits, Statements of Need (SON), and research priorities. A few of the major recurring themes throughout the workshop were the importance of monitoring, concerns over the fate of fine-grained sediment, and difficulties conveying the benefits of nearshore placements to a wide range of audiences. The workshop culminated in a discussion of possible SON to be put forth to the ERDC research and development community. This special report describes the discussions and outcomes of the 2019 Nearshore Placement Workshop.

  • Army Corps Navigation Mission Part of Baltimore’s Continued Maritime Heritage

    Baltimore is historically a port city with a rich maritime history and the Army Corps of Engineers,

  • Corps opens public comment on construction of a Dredged Material Management Area in Martin County

    The U.S. Army Corps of Engineers, Jacksonville District opens public comment on the Draft Environmental Assessment (EA) and proposed Finding of No Significant Impact (FONSI) for construction of a dredged material management area (DMMA) at Site O-23 located in Martin County, Florida. Public comment will be accepted through June 18, 2020.

  • PUBLICATION NOTICE: Geochemical Fingerprinting of Sediment Sources Associated with Deposition in the Calcasieu Ship Channel

    Abstract: This Regional Sediment Management Technical Note (RSM-TN) demonstrates how geochemical fingerprinting techniques were used to distinguish probable sediment sources to the Calcasieu Ship Channel (CSC). These methods were applied to sediment samples collected from suspected source areas identified in past sediment budget studies. The techniques can be used by managers and stakeholders to make more informed decisions on best practices for managing sediment and mitigating sediment deposition within the channel.