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  • Mobile Runway Edge Sheave Anchor Criteria in Asphalt Concrete Pavement

    Abstract: The Mobile Runway Edge Sheave (MRES) is used in conjunction with the Mobile Aircraft Arresting System (MAAS) for setback aircraft arresting system (AAS) installations in expedient or temporary situations. There are existing criteria and tactics, techniques, and procedures (TTPs) for MRES installations on portland cement concrete (PCC) pavement and soil, but these criteria have not been developed for asphalt concrete (AC) pavements. The US Air Force Civil Engineer Center (AFCEC) tasked the US Army Engineer Research and Development Center (ERDC) to develop anchor criteria for the MRES in AC pavement and to perform full-scale load testing on the MRES to evaluate system response under representative loads. Three anchor stake layouts were evaluated under static and cyclic loading conditions: a 32-stake layout, a 16-stake layout, and an 8-stake layout. Elastic-plastic deflection data from the three test series were comparatively analyzed and show that the performance of the 16-stake layout was similar to that of the 32-stake layout for the given loading condition and pavement structure.

  • From farm roots to flood risk management at Pine Flat Lake

    From citrus groves to floodgates, Jake Severns' journey has come full circle. Raised on a citrus farm in California’s Central Valley, he learned the value of water early in life. Today, he helps manage that vital resource as the operations project manager for Pine Flat Dam with the U.S. Army Corps of Engineers Sacramento District.

  • MKARNS Nav Notice No. SWL 25-30 Lock 9 Tow Haulage Return to Service

    The required work on the lock shelters is complete and the tow haulage equipment at Ormond Lock (No. 9) NM 176.9 has been returned to service.

  • Corps of Engineers releases Line 5 Tunnel Project tentative timeline

    The U.S. Army Corps of Engineers, Detroit District released an updated Line 5 Tunnel Project permit review and Environmental Impact Statement (EIS) timeline May 2, 2025. The Draft EIS is expected to be published in the Federal Register on May 30, 2025. The Detroit District will conduct a 30-day public comment period (May 30 to June 30, 2025) following the release of the Draft EIS. “Public participation is an important part of the National Environmental Policy Act (NEPA) process to ensure a thorough environmental analysis, and an effective, consistent and well-informed decision,” Detroit District Commander Lt. Col. Wallace Bandeff said.

  • Agencies extend comment period for Columbia River System environmental review

    The U.S. Army Corps of Engineers (USACE) and the Bureau of Reclamation (Reclamation), or co-lead agencies, are extending the public comment period for the Columbia River System Operations Supplemental Environmental Impact Statement (SEIS) to August 15, 2025.

  • Resilience: Directions for an Uncertain Future Following the COVID-19 Pandemic

    Abstract: The concept of resilience is multi-faceted. This commentary builds upon the analytical distinctions of resilience provided by Urquiza et al. (2021, https://doi.org/10.1029/2020EF001508). In response to this article, we emphasize several distinctions between resilience and other systems concepts. These include distinctions between resilience, risk, and vulnerability, the tradeoff between resilience and efficiency, resilience contrasted with robustness, the relationship between resilience and sustainability, and finally methods for building resilience-by-design or resilience-by-intervention. Improving understanding of these concepts will enable planners to select resilience strategies that best support their system goals. We use examples from the 2020–2021 coronavirus pandemic to illustrate the concepts and the juxtapositions between them.

  • Review of Stream Assessments for Evaluating Ecological Impacts and Benefits

    Purpose: This technical note synthesizes common stream assessment methods and highlights their scope, data requirements, and ecological functions to assist practitioners and researchers in selecting appropriate tools for evaluating and managing stream ecosystem impacts and benefits.

  • USACE Chicago District Hosts Successful Industry Open House

    The U.S. Army Corps of Engineers (USACE) Chicago District welcomed more than 130 industry professionals, contractors, and vendors to its annual Industry Open House, held at the district headquarters in downtown Chicago. The event serves as a vital opportunity for private-sector partners to engage directly with district leadership, learn about upcoming contract opportunities, and gain a comprehensive understanding of the district’s mission and priorities.

  • ‘We represent the U.S. Army Corps of Engineers’: Office of Counsel an essential element to engineering excellence

    Attorneys, paralegals and other legal support staff are probably not the first jobs that come to mind when thinking of a large engineering organization. At the Kansas City District, U.S. Army Corps of Engineers, the Office of Counsel plays a vital role in the district’s ability to execute its many missions — albeit sometimes in the background. Practicing what is known as preventative law, the Office of Counsel is typically not the face of the Kansas City District. However, they play a critical role representing the legal position and rights of USACE as an organization and are engaged in the planning and design phase of many of the district’s projects to ensure smooth and effective execution from project conception to completion.

  • Connecting people, project and purpose: The story of an outreach coordinator

    An outreach coordinator is often the public’s first point of contact with the U.S. Army Corps of