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  • Rolling Prairie, Minnesota, Beneficial Use Area: A 100-Year Plan for Multiuse Land Management and Restoration Using Dredged Sediment

    Purpose: Inland waterway dredged sediment management is challenged by a lack of capacity in existing dredged material confined disposal facilities (CDFs) and a lack of available land to place sediment near frequently dredged navigation channels. Navigation operation and maintenance (O&M) dredging, material management, and coordination costs are increasing, and alternative long-term solutions are required. In response, the US Army Corps of Engineers (USACE), St. Paul District has addressed the challenge by investigating regional sediment management and beneficial use of dredged material when updating navigation pool–specific dredged material management plans (DMMP). The recently completed Pool 5 DMMP planning identified a 950 acre (384 ha)[1] placement site consisting of several land parcels available from willing sellers that will accommodate a “100-year plan” for dredged material management (USACE 2019). This technical note describes the multiple-use site plan that creates sand prairie and wetland habitat, provides public access to sand stockpiles, and implements agriculture studies with the University of Minnesota to evaluate the benefits of dredged material (i.e., sand) amendments in alluvial cropland soils, which has not been widely investigated. The Rolling Prairie site will demonstrate benefits of “distributed DMMPs” in which thin-layer placement on agricultural land near dredging locations can supplement traditional disposal methods. It also shows the advantage of having a large placement site to achieve multiple objectives.
  • USACE & FIND host the Atlantic Intracoastal Waterway boat tour

    Jacksonville, Fla. -- On May 1, 2024, members of the U.S. Army Corps of Engineers (USACE) Jacksonville District, joined by partners from the Florida Inland Navigation District (FIND), U.S. Coast Guard, and various stakeholders, embarked on the vessel named Florida II to conduct inspections along segments of the Atlantic Intracoastal Waterways (IWW). While unconventional, the ship provided an invaluable setting for decision-makers to witness firsthand the environmental areas under discussion and foster relationships among stakeholders.
  • USACE & FIND host the Atlantic Intracoastal Waterway boat tour

    On May 1, 2024, members of the U.S. Army Corps of Engineers (USACE) Jacksonville District, joined by partners from the Florida Inland Navigation District (FIND), U.S. Coast Guard, and various stakeholders, embarked on the vessel named Florida II to conduct inspections along segments of the Atlantic Intracoastal Waterways (IWW). While unconventional, the ship provided an invaluable setting for decision-makers to witness firsthand the environmental areas under discussion and foster relationships among stakeholders.
  • Mississippi River dredging pipeline construction to begin near Wabasha, Minnesota

    The U.S. Army Corps of Engineers, St. Paul District, and its contractor, LS Marine, Inc., from Inver Grove Heights, Minnesota, will begin work on a dredging pipeline near Wabasha, Minnesota, May 13.
  • Breaking ground: U.S. Army Corps and Port of Virginia Spearhead Major Atlantic Ocean Channel Deepening

    Armed with shovels in hand, the U.S. Army Corps of Engineers (USACE) Norfolk District along with its partners, Virginia Port Authority and City of Virginia Beach broke ground during a ceremony for the commencement of the Atlantic Ocean Channel Phase II on Thursday, April 25, celebrating the commencement of construction for the final Norfolk Harbor Deepening contract along with the upcoming beach nourishment projects at Resort and Croatan Beaches in Virginia Beach.
  • Corps of Engineers to start dredging Cleveland Harbor

    Dredging of the Cleveland Harbor federal navigation channel by the U.S. Army Corps of Engineers, Buffalo District and its contractor, Michigan-based Ryba Marine Construction Co., will begin in May. Dredging of harbors like Cleveland’s ensures accessible depths for large vessels, the continued flow of commodities across the Great Lakes, and the economic viability of United States waterways.
  • Charlevoix channel dredging scheduled to conclude by May 15

    About 13,000 cubic yards of material is scheduled to be removed from the Charlevoix Harbor channel before May 15, as part of a maintenance dredging contract under the U.S. Army Corps of Engineers, Detroit District.  Great Lakes Dock and Materials, LLC., located in Muskegon, will perform the work for the Corps of Engineers for approximately $480,000 and place the dredged materials in open water in Lake Michigan. The state-approved open water is located about a mile and a half northwest of the harbor entrance. 
  • Development and Testing of the Sediment Distribution Pipe (SDP): A Pragmatic Tool for Wetland Nourishment

    Abstract: Standard dredging operations during thin layer placement (TLP) projects are labor intensive as crews are necessary to periodically move the outfall location, which can have lasting adverse effects on the marsh surface. In an effort to increase efficiency during TLP, a novel Sediment Distribution Pipe (SDP) system was investigated. This system offers multiple discharge points along the pipeline to increase the sediment distribution while reducing pipeline movements. An SDP Modeling Application (SDPMA) was developed to assist in the design of SDP field applications by quickly assessing the pressure and velocity inside the discharge pipe and approximating the slurry throw distances. An SDP field proof of concept was performed during a two-phase TLP on Sturgeon Island, New Jersey, in 2020. The SDPMA was shown to be an accurate method of predicting performance of the SDP. The SDP was successful at distributing dredge material across the placement site; however, further research is warranted to better quantify performance metrics.
  • USACE Continues to Embrace Innovation at the San Juan Harbor Dredging and Deepening Project

    San Juan, Puerto Rico – Recognizing the vital role the San Juan Harbor plays in the economy of Puerto Rico, the U.S. Army Corps of Engineers (USACE) Task Force Virgin Islands Puerto Rico (TF-VIPR) highlighted the beginning of the dredging and deepening phase of the San Juan Harbor during the First Bucket Ceremony hosted by Puerto Rico’s Governor, Pedro Pierluisi, and Puerto Rico Ports Authority Executive Director, Joel Pizá.
  • Corps of Engineers Start Outer Harbor Dredging in Holland, Michigan

    The U.S. Army Corps of Engineers, Detroit District, will begin dredging the outer harbor in Holland, Michigan, this weekend to remove about 31,000 cubic yards of sediment from the federal navigation channel. The King Co., based in Holland, Michigan was awarded a $901,885 contract to hydraulically dredge Holland and Grand Haven this spring. The expected completion for both harbors is May 31.