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  • Mississippi River Adaptive Hydraulics Model Development and Evaluation, Commerce to New Madrid, Missouri, Reach

    Abstract: A numerical, two-dimensional hydrodynamic model of the Mississippi River, from Thebes, IL, to Tiptonville, TN (128 miles/206 km), was developed using the Adaptive Hydraulics model. The study objective assessed current patterns and flow distributions and their possible impacts on navigation due to Birds Point New Madrid Floodway (BPNMF) operations and the Len Small (LS) levee break. The model was calibrated to stage, discharge, and velocity data for the 2011, 2015–2016, and 2017 floods. The calibrated model was used to run four scenarios, with the BPNMF and the LS breach alternately active/open and inactive/closed. Effects from the LS breach being open are increased river velocities upstream of the breach, decreased velocities from the breach to Thompson Landing, no effects on velocity below the confluence, and cross-current velocities greater than 3.28 ft/s (1.0 m/s) within 1186.8 ft (60 m) of the bankline revetment. Effects from BPNMF operation are increased river velocities above the confluence, decreased velocities from the BPNMF upper inflow crevasse (Upper Fuseplug) to New Madrid, cross-current velocities greater than 1.5 ft/s (0.5 m/s) only near the right bank where flow re-enters the river from the BPNMF lower inflow/outflow crevasse Number 2 (Lower Fuseplug) and St. Johns Bayou.

  • Broadening the scope of post-wildfire flood risk management

    As firefighters worked diligently to extinguish a notable number of wildfires this season, researchers with U.S. Army Engineer Research and Development Center’s (ERDC) post-wildfire flood risk management team took a step back to evaluate how they could improve their efforts in assisting with the devastating effects of the fires.

  • Modeling the dynamics of the Modular Causeway System

    In contingency operations, the Modular Causeway System (MCS), an assembly of floating modules, is often used for loading and unloading supplies and equipment from ship to shore. The U.S. Transportation Command has enlisted the help of researchers at the U.S. Army Engineer Research and Development Center (ERDC) to numerically model the MCS and provide data that will aid in expanding the guidance to increase safety and efficiency for the warfighter.

  • RD20 fosters collaboration

    With scientists, engineers and other professionals spread across seven laboratories and multiple fields sites across the country, the U.S. Army Engineer Research and Development Center (ERDC) network is vast. But last week, ERDC hosted a virtual symposium – RD20 – with the goal of further connecting researchers scattered in various laboratories and locations throughout the country to enhance the organization’s ability to solve the nation’s toughest engineering challenges.

  • ERDC researchers use numerical modeling to assist with hurricane preparations

    As a tropical system approaches the coastline and the intensity and impact of the storm becomes evident, officials and first responders brace for landfall by staging equipment and readying personnel for the aftermath. To assist in these efforts, researchers at the U.S. Army Engineer Research and Development Center (ERDC) are using numerical modeling systems to help U.S. Army Corps of Engineers (USACE) districts better prepare for storms.

  • ERDC researchers participate in U.S. Army Foreign Technology (and Science) Assessment Support program

    Until engaging in conversation with colleagues while on temporary duty in the United Kingdom, Dr. Ahmad Tavakoly was not aware of the U.S. Army Foreign Technology (and Science) Assessment Support (FTAS) program. This summer, Tavakoly, a research civil engineer with the U.S. Army Engineer Research a Development Center’s (ERDC) Coastal and Hydraulics Laboratory (CHL), and co-principal investigator Dr. Mark Wahl, also from CHL, completed the first ERDC project funded by the program.

  • ERDC researchers participate in the During Nearshore Event Experiment to study coastal storm impacts

    As storms like Hurricane Laura continue to threaten our coasts with greater frequency and ferocity, researchers from across the country have joined a collaborative research effort to better understand these extreme events and improve coastal resilience.

  • ERDC researchers developing low-cost, rapid watershed assessment

    Researchers from the U.S. Army Engineer Research and Development Center (ERDC) have partnered with the U.S. Army Corps of Engineers (USACE) Vicksburg District to develop and test a low-cost, rapid watershed assessment using remote sensing technology to evaluate problems associated with watershed instability including erosion, sedimentation, flooding and environmental degradation.

  • Civil Works Research Area Review Groups go virtual during COVID-19 pandemic

    The U.S. Army Corps of Engineers (USACE) recently overcame the hurdle of conducting its annual Environmental, Navigation and Flood Risk Management Research Area Review Groups (RARGs) virtually due to physical distancing considerations related to COVID-19. The RARG meetings, typically held over the course of a few days in April, are the cornerstones of the present USACE civil works research and development (R&D) process, facilitating review and ranking of research needs submitted by districts, divisions, centers of expertise and researchers across the organization. During typical in-person RARGs, the meetings also facilitate team-building, technology transfer and hands-on learning about facilities, emerging products and methods.

  • ERDC Soldiers serve in the fight against COVID-19

    Although the vast majority of employees with the U.S. Army Engineer Research and Development Center (ERDC) are Department of Defense civilians, the select few U.S. Army Soldiers assigned to the ERDC are making a significant impact during the COVID-19 pandemic. Since March 2020, Soldiers from across the ERDC have deployed around the country to aid in the fight against the disease, many mobilizing to “hotspots” to confront the unique challenges of fighting an unseen enemy.