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  • Army Corps shares update on Francis E. Walter Dam water release schedule

    The U.S. Army Corps Engineers’ Philadelphia District updated the 2025 Francis E. Walter Dam recreation plan. The Army Corps updated the plan, which states whitewater and fisheries releases will be scheduled if enough water storage is accumulated in the reservoir. Currently, there is enough water storage to schedule the 12th increment of the plan, which includes adding fishing releases for the period of September 13-26.

  • IHNC Lock replacement public review, comment periods extended

    The U.S. Army Corps of Engineers, New Orleans District, has extended the public review and comment period ending on Sept. 2, 2025, to now end on Sept. 12, 2025, for the Inner Harbor Navigation Canal Lock Replacement Draft General Reevaluation Report and Integrated Supplemental Environmental Impact Statement.

  • The Corps Environment - Summer 2025 edition now available

    This publication highlights how the U.S. Army Corps of Engineers is working alongside stakeholders and partners to turn environmental challenges into mission-ready solutions.

  • Nanofiber Fabrication by Electrospinning Technology: Optimization, Characterization, and Application

    Abstract: This project explores electrospinning (ES) as one of the most successful technologies to produce nanofiber materials. Electrospun nanofibers are used in various military technologies, including advanced filtration systems, impact-resistant protective gear, thermal insulation, radar absorption for camouflage and stealth, antimicrobial wound dressings, drug-delivery patches, rapid healing, efficient solar cells, and self-cleaning materials for regeneration. Researchers at the US Army Engineer Research and Development Center (ERDC) investigated electrospinning effects on morphology, crystallinity and distribution of metal oxides for photocatalytic activities, and magnetic and mechanical properties in reinforcing composites. This study includes the following fabricated electrospun mats: -iron and titanium oxide (Fe3O4 and TiO2) with polyvinyl alcohol (PVA) -graphene, graphene oxide, and reduced graphene oxide with polyvinylidene fluoride (PVDF) -graphene-polyacrylonitrile (PAN) -metal-organic frameworks (MOF), graphene-MXene with PAN The research presented herein includes electrospinning theory, process, and parameters; sol–gel technology in solution preparation; and electrospinning sample characterization to guide readers in the fabrication of electrospun fibers with targeted characteristics. Future studies explore electrospun MOFs and MXene, a class of two-dimensional inorganic compounds with transition metal carbides, nitrides, or carbonitrides composites. These studies are invaluable for advancing military programs and enhancing warfighter support and civil works.

  • UPDATED: Kanopolis Lake to begin lake drawdown on Sept. 2

    UPDATE: Due to recent rain in the Smoky Hill River basin, Kanopolis Lake outlet discharges into the Smoky Hill River have increased to approximately 1000 cubic feet per second to reach targeted lake drawdown elevation of 1,461 MSL by Oct. 1. This amount and schedule continue to be subject to change based upon local weather conditions. The Kansas City District has notified and coordinated releases with downstream stakeholders affected by this increase. The Kanopolis Lake Project will begin a lake drawdown beginning Sept. 2, 2025, and ending by Sept. 30, 2025* to support ongoing construction at the dam’s outlet works. Outlet discharges into the Smoky Hill River are not expected to exceed 500 cubic feet per second at the lake’s current inflow and elevation. The target lake elevation for this drawdown is 1m461 feet MSL. The lake will remain at this elevation until outlet construction is complete in spring 2026.

  • Team Visits Buxton FUDS Property for Post Hurricane Erin Update

    SAVANNAH, Ga. – Officials from the U.S. Army Corps of Engineers’ Headquarters and South Atlantic Division were at the Buxton FUDS property in Dare County, North Carolina, alongside the Savannah District commander, Formerly Used Defense Sites (FUDS) Program team and Bay West contractors this week assessing the damage unearthed by Hurricane Erin, to determine the best way forward to clean up the site.

  • Developing Conceptual Ecological Models for Hydraulic Analysis

    Purpose: Technological advances, coupled with increased availability of spatial and monitoring data for hydraulic analysis, environmental flows analysis, and remote sensing, present opportunities for novel investigations of the structure and function of ecological systems. To leverage these capabilities in ecological analysis, it is necessary to develop a framework that links engineering model capacities with ecological principles. It is well known that riverine ecosystems are complex systems at the intersection of channel form, stream flow volume, and biology. However, because of differences in technical language and analytical philosophy, there are practical challenges associated with cross-walking multidiscipline riverine studies into interdisciplinary efforts that comprehend both engineering and ecological principles. Challenges associated with cross-discipline communication and framing the scope of ecohydraulic analysis are inherent barriers that limit the traction of research crossing disciplinary boundaries.

  • Monitoring of Understudied Wetlands: State of Knowledge

    Abstract: Some wetlands can present unique challenges for mapping and monitoring due to their size, location, foliage architecture, and spectral characteristics. For instance, assessing ecological condition and restoration success using traditional remote-sensing systems in forested and ephemeral wetlands is onerous. Therefore, the purpose of this technical note is to evaluate the state of knowledge and technology related to the use of remote sensing in assessing vegetation dynamics in understudied and hard to monitor wetlands. Ultimately, this exercise will identify data gaps and recommend improvements for analyzing and modeling wetland systems and trends, quantifying disturbance impacts, and assist efficiencies of data collection to improve management decisions, which in turn will help in reaching restoration goals.

  • Adaptive Management Framework for Microseira wollei in Lake St. Clair, Michigan

    Abstract: Microseira wollei has grown to problematic densities within Lake St. Clair, located between Lake Erie and Lake Huron. Though stakeholders have issued a call-to-action for the management of M. wollei, no substantive plan exists, which was the impetus for this adaptive management framework. Field surveys, emerging technologies, laboratory evaluations, and a literature review were integrated to develop this site-specific frame-work. Adaptive management consists of a series of iterative steps to define and characterize the issue; identify goals, plan, and prioritize; determine a plan; implement management; measure the outcomes; and adapt and re-fine the plan. M. wollei is widely distributed within the study area and across large sections of the lake bed. Due to its large spatial extent, long-term management should focus on regaining and maintaining uses within Lake St. Clair that have been affected by shoreline accumulations. Mechanical removal is anticipated to be the most effective tool; however, the potential addition of algaecides or nutrient sequestration products could be explored for increased effectiveness. The planning and execution of a substantive management plan for M. wollei in Lake St. Clair are outlined and described, but effective management will require a concerted effort on a scale that matches the scope of the problem.

  • USACE closes swim beach at Panther Bay until further notice

    MOUNTAIN HOME, Ark. – The U.S. Army Corps of Engineers, Mountain Home Project Office is closing the swim beach at Panther Bay on Norfork Lake until further notice.