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  • MKARNS Nav Notice No. SWL 25-39 Lock 10 Closure Notice

    A partial lock closure is scheduled for Dardanelle Lock (No. 10) NM 205.5 beginning June 15th, 2025, through September 30th, 2025. During this time, the Lock will be closed daily between the hours of 7:00 a.m. and 7:00 p.m. The Lock will be opened to traffic each night between the hours of 7:00 p.m. and 7:00 a.m., however a 70-ft width restriction will be in place.

  • Jacksonville District Engineer promoted to Army Captain

    MAYPORT, Fla. - May 31, 2025 - This week at the U.S. Army Corps of Engineers Jacksat hisonville District celebrates the promotion of 1st Lt. Peyton Pisacane to the rank of Army Captain in a ceremony officiated by U.S. Army Maj. Matthew Westcott, deputy commander for the U.S. Army Corps of Engineers, Jacksonville District at the Seaglass Club on Naval Air Station Mayport.

  • Mobile District supports F-35 mission at Eglin AFB

    Air Power and Air Superiority are the name of the game for the U.S. Air Force. One of the most state-of-the-art aircraft that provides that superiority is the F-35 Lightning II.

  • Corps extends public comment period for ending hydropower production, deeper Detroit Reservoir drawdowns

    The U.S. Army Corps of Engineers’ (USACE) Portland District has extended the public comment period from June 6 to June 21 for its Supplemental Environmental Impact Statement (SEIS) focused on two new requirements related to the operations and maintenance of the Willamette Valley System of dams and reservoirs.

  • Allen Malcomb earns USACE national Quality Professional of the Year award

    Allen Malcomb, chief of Quality Assurance for the Chickamauga Lock Replacement Project, was honored as the USACE Quality Professional of the Year (Construction) for his leadership in ensuring high construction standards. He leads a team that reviews thousands of documents and inspections, ensuring safety, precision, and compliance in this critical infrastructure project. His efforts have significantly improved contractor accountability and fostered a strong quality control culture. Malcomb is also recognized for mentoring young engineers and emphasizing teamwork and continuous improvement.

  • USACE crew acts fast aiding visitor during April rollover

    On April 23, a serious vehicle rollover near Lucky Peak Dam, of the U.S. Army Corps of Engineers Walla Walla District, tested the resolve and readiness of project staff, also revealing a team united by training, trust, and the will to help.

  • SAME Omaha Post industry day welcomes hundreds of industry members

    The U.S. Army Corps of Engineers, Omaha District participated in the Society of American Military Engineers Omaha Post Industry Day at the CHI Health Center in Omaha, Nebraska, May 28–30, 2025.

  • Corps Hosts Info Session for Rogue River Basin Water Management Missions

    The U.S. Army Corps of Engineers (USACE) invites the public to a hybrid information session to discuss the water management mission, current strategies and conservation season forecasts for the Rogue River Basin, focusing on Applegate and Lost Creek reservoirs.

  • U.S. Army Corps of Engineers reduces target releases to Caloosahatchee Estuary after Recovery Operations

    The U.S. Army Corps of Engineers (USACE) Jacksonville District will reduce target releases from Lake Okeechobee through the S-79 into the Caloosahatchee River Estuary, June 4, 2025.

  • Floridan Aquifer System (FAS) Aquifer Material Collection and Screening: Investigating Arsenic Fate and Transport Under Lab-Simulated Aquifer Storage and Recovery (ASR) Conditions in the FAS—Task A Report

    Abstract: The US Army Engineer Research Development Center is leading a laboratory study to quantify arsenic release that could occur during large-scale aquifer storage and recovery (ASR) operations in the anoxic Floridan Aquifer System (FAS). FAS materials containing arsenic must be collected and preserved under anoxic conditions to complete the laboratory study. This report describes collection, preservation, and initial characterization results of FAS material collected. Analysis of water surrounding the FAS material during storage detected some arsenic, suggesting arsenic presence in the solids. In-depth characterization of a single sample confirmed storage conditions were anoxic; no arsenic was detected in surface scrapings collected from the sample solids. Initial characterization results suggested FAS materials collected were suitable for use in the planned laboratory study and that storage methods were suitable for preserving collected materials.