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  • 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.

  • Agencies push Columbia River environmental review

    The U.S. Army Corps of Engineers (USACE) and Bureau of Reclamation (Reclamation), or co-lead agencies, are pushing back virtual public scoping meetings they previously scheduled for the week of April 7, 2025. The co-lead agencies will also extend the scoping period for a Supplemental Environmental Impact Statement (SEIS) for the Columbia River System Operations.

  • Corps of Engineers seeks comments on river sand placement site in Winona County, Minn.

    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 river sand placement site in Winona County, Minnesota. The sand will be beneficially used by Fastenal Company for construction of a warehouse.