• USACE announces start of Blue Roof Program in response to Hurricane Ian

    The U.S. Army Corps of Engineers has been tasked by the Federal Emergency Management Agency (FEMA) to assist eligible homeowners with temporary roof repairs after Hurricane Ian. The Operation Blue Roof program will begin on Oct. 3 to provide a temporary blue covering with fiber-reinforced sheeting to help reduce further damage to property until permanent repairs can be made.
  • Groups navigate Fort Loudoun Lock to learn locking process

    LENOIR CITY, Tenn. (Oct. 3, 2022) – Several local groups recently navigated Fort Loudoun Lock to see the lock chamber and learn about the locking process.
  • Did You Know?

    Did You Know ... the Sacramento District has the capability to shoot quality imagery using Unmanned
  • Army Corps awards contract for periodic nourishment of Ocean City beachfill project

    The U.S. Army Corps of Engineers’ Philadelphia District has awarded a contract to Great Lakes Dredge & Dock Company of Oak Brook, IL for $21.5 million to conduct periodic nourishment of the Great Egg Harbor and Peck Beach, (Ocean City), NJ project in New Jersey. Work is the result of a partnership between the Army Corps’ Philadelphia District, the New Jersey Department of Environmental Protection, and Ocean City.
  • USACE announces BBSEER Project Delivery Team Meetings on Oct. 4 and Oct. 20

    The U.S. Army Corps of Engineers Jacksonville District announces Project Delivery Team (PDT) Meetings for the Biscayne Bay and Southeastern Everglades Ecosystem Restoration (BBSEER) Project study on Tuesday, October 4, and Thursday, October 20, 2022.
  • Hundreds visit Corps’ emergency command control vehicle display at San Diego air show

    During a recent air show at Marine Corps Air Station Miramar in San Diego, hundreds of visitors toured one of the U.S. Army Corps of Engineers’ Emergency Command and Control Vehicles, or ECCV’s.
  • Army Announces Corps of Engineers’ Civil Works Investments for Supply Chain Resilience and Flood Mitigation Funded by the Bipartisan Infrastructure Law

    WASHINGTON – Today, the Office of the Assistant Secretary of the Army for Civil Works announced additional U.S. Army Corps of Engineers studies, projects, and programs funded by President Biden’s Bipartisan Infrastructure Law. These actions will invest almost $800 million to address urgent issues facing Americans, including supply chain resilience, flood mitigation, and coastal storm damage protection.
  • Practical Guidance for Numerical Modeling in FUNWAVE-TVD

    Purpose: This technical note describes the physical and numerical considerations for developing an idealized numerical wave-structure interaction modeling study using the fully nonlinear, phase-resolving Boussinesq-type wave model, FUNWAVE-TVD (Shi et al. 2012). The focus of the study is on the range of validity of input wave characteristics and the appropriate numerical domain properties when inserting partially submerged, impermeable (i.e., fully reflective) coastal structures in the domain. These structures include typical designs for breakwaters, groins, jetties, dikes, and levees. In addition to presenting general numerical modeling best practices for FUNWAVE-TVD, the influence of nonlinear wave-wave interactions on regular wave propagation in the numerical domain is discussed. The scope of coastal structures considered in this document is restricted to a single partially submerged, impermeable breakwater, but the setup and the results can be extended to other similar structures without a loss of generality. The intended audience for these materials is novice to intermediate users of the FUNWAVE-TVD wave model, specifically those seeking to implement coastal structures in a numerical domain or to investigate basic wave-structure interaction responses in a surrogate model prior to considering a full-fledged 3-D Navier-Stokes Computational Fluid Dynamics (CFD) model. From this document, users will gain a fundamental understanding of practical modeling guidelines that will flatten the learning curve of the model and enhance the final product of a wave modeling study. Providing coastal planners and engineers with ease of model access and usability guidance will facilitate rapid screening of design alternatives for efficient and effective decision-making under environmental uncertainty.
  • Cold Regions Vehicle Start: Cold Performance of Ultracapacitor-Based Batteries for Stryker Vehicles

    Abstract: Reliable vehicle start is necessary to support mission success, especially for response time. At Department of Defense installations in cold regions, vehicles using rechargeable battery and starter technologies have significant issues starting in the cold. Ultracapacitor engine start modules (ESMs) are an alternate technology to rechargeable lead-acid or lithium-ion batteries. The project develops a performance baseline for the ESM used in the M1126 Stryker Combat Vehicle under cold conditions. To test the performance of the ESMs in a cold room, a mechanical load system was constructed to replicate the load of starting a Stryker engine and instrumented with sensors to monitor parameters such as voltage, torque, and temperature. The ESMs were tested with the load system at temperatures from 24°C to −40°C. The results of the tests showed that there was some degradation of the ultracapacitor’s performance at the colder temperatures, which was expected, but no permanent damage. This work provides a test protocol and capability to evaluate next-generation vehicle battery systems for cold regions applications. Additionally, the ESM cold performance data establish a baseline to compare next-generation vehicle battery storage systems and to support cold regions missions and identify potential performance requirements for future vehicle battery system acquisition.
  • U.S. Army Corps of Engineers Announces Second Contract Award for the Fire Island to Montauk Point Project

    The U.S. Army Corps of Engineers (USACE), New York District, announces the second contract award for the major coastal-storm risk management project known as the Fire Island to Montauk Point (FIMP) Project. The $24,498,050 contract was awarded to Lake Dredge and Dock Company LLC, of Houston, TX.