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  • U.S. Army Corps of Engineers announces publication of 2026 nationwide permits

    The U.S. Army Corps of Engineers announced today the publication of the 2026 nationwide permits in the Federal Register. The 56 reissued and one new nationwide permit in the final action are necessary for work in streams, wetlands and other waters of the United States under Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899.

  • Procedures for Obtaining US Air Force Global Air-Land Weather Exploitation Model (GALWEM) Data for Hydrological Modeling Applications: An Overview of the GALWEM Acquisition System (GAS) v1.0 and v2.0

    Abstract: The Global Air Land Weather Exploitation Model (GALWEM) Acquisition System (GAS) is a software platform that serves to automate and simplify the procurement of numerical weather prediction model data from the 557th Weather Squadron. GAS allows for the download of meteorological and other environmental parameters from the GALWEM, an operational Numerical Weather Prediction capability operated by the 557th Weather Squadron for use by both Air Force and Army interests. GAS provides the ability to archive GALWEM data so that it may be used by the US Army Engineer Research and Development Center (ERDC) and other researchers. The report describes multiple methodologies for data access as well as suggestions for future work to improve computational efficiency and customer access.

  • Development and Management of Arctic Zonal Characterization Products: Geospatial Database

    Abstract: Environmental parameters for operational planning in extreme conditions require accurate knowledge of prevailing meteorological conditions. However, the Arctic region presents unique challenges due to limited observational data and unique geographical conditions. To address the need for such knowledge, this study presents an analysis of Arctic prevailing-conditions using European Center for Medium-Range Weather Forecasting (ECMWF) Reanalysis v5 (ERA5) Data from 1991 to 2020. A custom Python-based framework was developed to process and analyze hourly datasets, identifying zones of extreme events and their frequency across multiple temporal scales. The framework uses ArcPy to automate the generation of nearly 40,000 mapped classifications for land masses 60°N and above. This automated pipeline enables both static and dynamic map generation capabilities for operational planning now and in the future. The resulting dataset provides critical spatial and temporal resolution of Arctic prevailing-conditions, enabling more refined characterization of extreme prevailing-conditions across the circumpolar region.

  • 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.

  • Public comment period begins for Watsonville Slough Aquatic Ecosystem Restoration report

    The U.S. Army Corps of Engineers San Francisco District (USACE), in collaboration with the Pajaro Storm Drain Maintenance District (PSDMD), has prepared a draft Detailed Project Report and Environmental Assessment (DPR/EA) for the Watsonville Slough Aquatic Ecosystem Restoration Section 1135 Study under the Continuing Authorities Program (CAP) in Santa Cruz County, California.

  • Corps of Engineers seeks comments on Upper Pool 4 dredge cut

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, is seeking public comments on a draft Environment Assessment, or EA, for a proposed routine dredge cut below Goose Bay in Upper Pool 4 in Pierce County, Wisconsin and Goodhue County, Minnesota. The dredge cut involves establishing a new location for river dredging.

  • USACE announces dune restoration plan at Hollywood Beach

    The U.S. Army Corps of Engineers is announcing a dune restoration plan at Hollywood Beach designed to offset impacts of maintenance dredging activities in Ventura County. Restoration efforts are slated for implementation in fiscal year 2026.

  • The Corps Environment – Spring 2025 edition now available

    The Spring 2025 edition of The Corps Environment is now available! This publication highlights how the U.S. Army Corps of Engineers is turning environmental challenges into mission-ready solutions. Content in this issue includes ongoing projects and initiatives from across the Army environmental community that are leveraging environmental stewardship as a force multiplier — enhancing military readiness, strengthening strategic partnerships and supporting community well-being.

  • Oahe Project, WOZU partner again to plant native trees along Cannonball River trail

    Staff from the U.S. Army Corps of Engineers Omaha District’s Oahe Project once again teamed up with WOZU and local students to plant native tree species along a bike trail near the Cannonball River, N.D. on May 12, 2025.

  • UPDATE: Lower Pool 10 restoration project groundbreaking and open house canceled

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, announced today that it is canceling the groundbreaking ceremony for the Lower Pool 10 habitat rehabilitation and enhancement project that was scheduled for April 22, due to the Corps’ travel restrictions.