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  • City, USACE host Virginia senator and civic league at proposed reef restoration site

    City of Virginia Beach and Norfolk District, U.S. Army Corps of Engineers, hosted Virginia Sen. Bill DeSteph, Virginia Marine Resources Commission and Broad Bay Civic League members on a tour of the proposed area for the Lynnhaven River Basin Ecosystem Restoration Project, Phase 2: Reef, Oct. 25 at Broad Bay here.

  • Promotion at John Martin Reservoir

    Jacob Pauley, chief, Operations Division, recently performed a Supervisor Promotion Ceremony for Jake Williams, the new Operations Project Manager for the Albuquerque District’s John Martin Dam.

  • USACE’s Institute for Water Resources takes part in discussion on Africa’s water challenges

    ALEXANDRIA, Va. (Oct. 12, 2022) – The effects of climate change are intensifying across Africa, with prolonged drought, famine conditions, and severe weather events all on the rise.

  • Hydraulic Institute Conference attendees tour Corps’ dissolved oxygen plant

    SAVANNAH, Ga. – Attendees of the Hydraulic Institute Fall Conference visited the lower Savannah River dissolved oxygen plant operated by the U.S. Army Corps of Engineers, Savannah District, Oct. 24, 2022.

  • Safety updates for Standing Bear Lake Draft Environmental Assessment

    OMAHA, Neb. --The recent announcement for proposed recreational and fishery improvements at Standing Bear Lake has led to many questions concerning trail access at the lake during the construction period. 

  • Snow-Covered Region Improvements to a Support Vector Machine-Based Semi-Automated Land Cover Mapping Decision Support Tool

    Abstract: This work builds on the original semi-automated land cover mapping algorithm and quantifies improvements to class accuracy, analyzes the results, and conducts a more in-depth accuracy assessment in conjunction with test sites and the National Land Cover Database (NLCD). This algorithm uses support vector machines trained on data collected across the continental United States to generate a pre-trained model for inclusion into a decision support tool within ArcGIS Pro. Version 2 includes an additional snow cover class and accounts for snow cover effects within the other land cover classes. Overall accuracy across the continental United States for Version 2 is 75% on snow-covered pixels and 69% on snow-free pixels, versus 16% and 66% for Version 1. However, combining the “crop” and “low vegetation” classes improves these values to 86% for snow and 83% for snow-free, compared to 19% and 83% for Version 1. This merging is justified by their spectral similarity, the difference between crop and low vegetation falling closer to land use than land cover. The Version 2 tool is built into a Python-based ArcGIS toolbox, allowing users to leverage the pre-trained model—along with image splitting and parallel processing techniques—for their land cover type map generation needs.

  • Predicting future runway alignment earns patent for Mobile’s Lee

    While the convenience of Global Positioning System (GPS) can assist drivers to desired locations, pilots can also depend on it to locate runways that have been renamed as the result of shifting magnetic fields, thus assuring passengers’ safety.

  • Craney Island mosquito spraying scheduled tomorrow

    NORFOLK, Va. — The Norfolk District, U.S. Army Corps of Engineers, and the City of Portsmouth, Virginia, will conduct joint aerial mosquito spraying Wednesday, November 2, over federal properties on Craney Island, adjacent city properties, and the Churchland area in Portsmouth. 

  • USACE waives day use fees at recreation areas in observance of Veterans Day

    The U.S. Army Corps of Engineers announced today that it will waive day use fees at its more than 2,850 USACE-operated recreation areas nationwide in observance of Veterans Day, Nov.11.

  • J. Strom Thurmond West Dam Day Use Area Temporarily Closed

    APPLING, Ga. – The U.S. Army Corps of Engineers, Savannah District, J. Strom Thurmond Project is temporarily closing West Dam Day Use Area for repaving Nov. 7-28, 2022.