• USACE releases Draft EA of Bunnell Wastewater Treatment Infrastructure Modernization for public review, comment

    The U.S. Army Corps of Engineers Jacksonville District has released a Draft Environmental Assessment (EA) for public review and comment regarding the City of Bunnell Comprehensive Wastewater Treatment Infrastructure Modernization Project in Flagler County, Florida.
  • Corps recreation opportunities in the Lewiston-Clarkston Valley

    CLARKSTON, Wash. – The U.S. Army Corps of Engineers, Walla Walla District is clarifying the rules and authorized uses for recreation sites within the Lewiston-Clarkston Valley.
  • Empowering Hope: Inside the Mission of the Corps of Engineers Temporary Emergency Power Team

    When natural disasters strike, the U.S. Army Corps of Engineers, Savannah District, deploys its temporary Emergency Power Planning and Response Team to provide electricity and hope to communities in distress.
  • USACE lifts small craft advisory for Arkansas River

    The U.S. Army Corps of Engineers is lifting the small craft advisory for the Arkansas River. Small craft advisories are issued when flows reach 70,000 cubic feet per second. While flows have receded, USACE officials urge boaters to always exercise caution when on the river.
  • U.S. Army Corps of Engineers Memphis to host annual “Business Industry Day”

    The U.S. Army Corps of Engineers (USACE) Memphis District (MVM) will host this year’s annual Business Industry Day at the Renasant Convention Center in downtown Memphis, Tennessee, on Tuesday, Feb. 20, from 12:30 until 5 p.m.  Industry Day is a Department of Defense (DoD) Program Management Office (PMO) event held to connect contractors with Memphis District representatives. It also gives the Memphis District the chance to highlight different program areas, build future partnerships, and further ensure its competency and capacity to deliver the mission.
  • Dredging project on track at Solana Beach

    The U.S. Army Corps of Engineers Los Angeles District's dredging operations and sand replenishment project at Solana Beach is about halfway complete.
  • Mobile District teams work to repair Demopolis Lock

    Teams throughout the Mobile District mobilized and sent vessels and crews to the Demopolis Lock and Dam in Demopolis, Alabama, Feb. 3, 2024, to repair the lock.
  • Overview of Microscale Analytical Methods for the Quantitative Detection of Bioaccumulative Contaminants in Small Tissue Masses

    Abstract: For many bioaccumulation studies, generation of large sample masses of exposed organisms is challenging or even prohibitive. Therefore, the use of smaller sample masses for analysis without compromising data quality or quantitative level achieved is desirable. To this end, a variety of microanalytical procedures have been developed that used 1 g or less of tissue to address specific experimental challenges. However, these methods have not been systematically evaluated or published. The present work evaluates the current state of the microanalytical methods reported and identifies additional needs that would benefit US Army Corps of Engineers (USACE) research and navigation dredging programs. Discussions with commercial laboratories revealed that they typically do not accept small sample masses and require individual sample masses ranging from 10 to 20 g wet weight of tissue per analysis. If they do analyze a small mass sample, they routinely do not modify their standard process, resulting in detection and reporting limits orders of magnitude higher; therefore, essentially useless nondetect data are generated for regulatory decisions. To address the lack of commercial availability of microanalytical methods, we recommend pursuing method development and subsequent validation of microscale extraction and analysis of a variety of common contaminant compounds in tissue matrices.
  • MKARNS Nav Notice No. SWL 24-16 Lock 2 Opened

    Crews have completed the upgrades to the lock interlock system at Lock No. 2 (NM 13.3), as communicated in Navigation Notice No. SWL 24-02, and the lock is now open to traffic.
  • USACE solicits public comments for a new waterline for the fish hatchery at Fort Peck Dam, Montana

    The U.S. Army Corps of Engineers, Omaha District is soliciting comments regarding the proposed implementation of a new waterline at the Fort Peck Fish Hatchery.