• USACE Emergency response missions, different but the same

    When a disaster happens, one can usually count on seeing the U.S. Army Corps of Engineers (USACE) on the scene, assisting residents to get back to normalcy as quickly and safely as possible. From supporting relief efforts after the 9/11 terrorist attacks to supporting the current Hurricane Helene mission in the agency’s Savannah District, USACE’s role in a disaster remains consistent as it adapts to ever-changing demands of each mission.
  • Establishing a Workflow for Near-Seamless Digital Elevation Model Creation in the Great Lakes for ADCIRC Modeling

    Abstract: This report introduces a workflow to create near-seamless, regional digital elevation models (DEMs) for use in coupled Advanced Circulation and Simulating Waves Nearshore modeling. The workflow is based in Esri ArcGIS Pro, leveraging the Mosaic Dataset architecture to organize and mosaic survey data sets into near-seamless DEMs. This workflow includes data collection and preprocessing, creation of source and derived mosaic data sets, manual editing of the data set seamlines, the creation of spatial metadata products, and quality assurance and control measures. These steps were implemented for each Great Lake to provide a high-resolution, near-seamless DEM product for modelers. The workflow may also have utility for other regional-scale investigations.
  • Safety First: USACE's number one priority during disaster response

    Before its employees set foot on a disaster response mission, the U.S. Army Corps of Engineers (USACE) has already established a safety framework emphasizing its number one principle: safety, the number one priority of USACE.
  • Comparison of Run-Up Models with Field Data

    Abstract: Run-up predictions are inherently uncertain, owing to ambiguities in phase-averaged models and inherent complexities of surf and swash-zone hydrodynamics. As a result, different approaches, ranging from simple algebraic expressions to computationally intensive phase-resolving models, have been used in attempt to capture the most relevant run-up processes. Studies quantifiably comparing these methods in terms of physical accuracy and computational speed are needed as new observation technologies and models become available. The current study tests the capability of the new swash formulation of the Coastal Modeling System (CMS) to predict 1D run-up statistics (R2%) collected during an energetic 3 week period on sandy dune-backed beach in Duck, North Carolina. The accuracy and speed of the debut CMS swash formulation is compared with one algebraic model and three other numerical models. Of the four tested numerical models, the CSHORE model computed the results fastest, and the CMS model results had the greatest accuracy. All four numerical models, including XBeach in surfbeat and nonhydrostatic modes, yielded half the error of the algebraic model tested. These findings present an encouraging advancement for phase-averaged coastal models, a critical step towards rapid prediction for near-time deterministic or long-term stochastic guidance.
  • Upper Mississippi River navigation season closes for the year

    The U.S. Army Corps of Engineers, St. Paul District, saw the last barge of the year, the Motor Vessel Ashley Danielson, depart Lock and Dam 2, Dec. 1, at 11:48 a.m., ending the 2024 navigation season on the Upper Mississippi River.
  • Adaptive Hydraulics 2D Shallow Water (AdH-SW2D) User’s Manual (Version 4.7.1): Guidelines for Solving 2D Shallow Water Problems with the Adaptive Hydraulics Modeling System

    Abstract: Guidelines are presented for using the US Army Corps of Engineers Adaptive Hydraulics modeling software to model 2D shallow water problems. Constituent (nonsediment) transport is also included in this document. Sediment transport instructions are contained in a supplemental user’s guide.
  • Changes to USACE Campgrounds at Carlyle Lake

    The U.S. Army Corps of Engineers Carlyle Lake Project Office announces a shift of Dam West Campground to a fully reservable campground and an increase of nightly camping fees for all USACE campgrounds effective immediately. These changes are essential to enhance the camping experience and maintain the quality of our facilities.
  • USACE leaders, hiring managers recruit talent at Total Army Career Fair

    The message to potential candidates from U.S. Army Corps of Engineers’ leaders and hiring managers was clear during a recent career fair: “We are hiring!” Over a two-day period, Nov. 1-2, USACE’s South Pacific Division was among several federal agencies that converged on SoFi Stadium for the Total Army Career Fair with one mission in mind: to recruit talent and fill critical vacant positions across all four of its districts.
  • Project partners celebrate forthcoming beach renourishment completion at San Clemente press conference

    The U.S. Army Corps of Engineers Los Angeles District took part in an Oct. 31 beachside press conference as it nears completion of its much-anticipated beach renourishment project in San Clemente, California.
  • Omaha District, Japan Ministry of Defense partner in exchange of protective design ideas

    The U.S. Army Corps of Engineers, Omaha District, hosted a Japan Ministry of Defense engineer engagement with USACE’s Protective Design – Mandatory Center of Expertise, Nov. 6-8, 2024. Five representatives from the Bureau of Defense Building Planning, Japan Ministry of Defense traveled to the United States for the engagement that included multiple briefings from USACE leaders regarding protective design and other expertise centers located in the Omaha District, as well as JMoD presentations and a tour of the Edward Zorinsky Federal Building.