• 21-028 Walla Walla Levee Safety Team earns national honors

    WALLA WALLA, Wash. – The Walla Walla District’s Levee Safety Team has won the 2020 U.S. Army Corps of Engineers Levee Safety Team of the Year. The award, given by Headquarters, U.S. Army Corps of Engineers, recognizes the best levee safety team in the nation for that year.
  • USACE Vicksburg District Dredge Jadwin embarks for 2021 season of dredging

    On May 3, 2021, the Dredge Jadwin, with a crew of around 50 U.S. Army Corps of Engineers (USACE) Vicksburg District team members, departed from the Vicksburg Harbor for its annual season of dredging along the Mississippi River and its tributaries.
  • USACE recruiting for Student Trainee (Archeology)

    The USACE Chicago District, Environmental and Cultural Resource Section is accepting resumes from both internal and external candidates wanting to be considered for the following opportunity that will be filled through a direct hire authority.
  • State of the practice in pavement structural design/analysis codes relevant to airfield pavement design

    Abstract: An airfield pavement structure is designed to support aircraft live loads for a specified pavement design life. Computer codes are available to assist the engineer in designing an airfield pavement structure. Pavement structural design is generally a function of five criteria: the pavement structural configuration, materials, the applied loading, ambient conditions, and how pavement failure is defined. The two typical types of pavement structures, rigid and flexible, provide load support in fundamentally different ways and develop different stress distributions at the pavement – base interface. Airfield pavement structural design is unique due to the large concentrated dynamic loads that a pavement structure endures to support aircraft movements. Aircraft live loads that accompany aircraft movements are characterized in terms of the load magnitude, load area (tire-pavement contact surface), aircraft speed, movement frequency, landing gear configuration, and wheel coverage. The typical methods used for pavement structural design can be categorized into three approaches: empirical methods, analytical (closed-form) solutions, and numerical (finite element analysis) approaches. This article examines computational approaches used for airfield pavement structural design to summarize the state-of-the-practice and to identify opportunities for future advancements. United States and non-U.S. airfield pavement structural codes are reviewed in this article considering their computational methodology and intrinsic qualities.
  • USACE Buffalo District to repair portions of the Buffalo North Breakwater

    The U.S. Army Corps of Engineers, Buffalo District has awarded a $7.8 million contract to Ryba Marine Construction Co. for the repair of 750 feet of the north end of the Buffalo North Breakwater using rubble mound repair to the lakeside of the structure, with construction to start by mid-summer.
  • Hydraulic dike effects investigation on the Mississippi River: Natchez to Baton Rouge

    Abstract: This report documents an investigation of the hydraulic effects of dikes on water levels in the Mississippi River between Natchez, MS, and Baton Rouge, LA, conducted for the U.S. Army Corps of Engineers, Mississippi Valley Division, Vicksburg, MS. The investigation was conducted using a previously calibrated Natchez-to-Baton Rouge Adaptive Hydraulics numerical model. The objectives were to alter roughness and height variables associated with the dikes and overbanks encompassed in the numerical model and evaluate their effects on water surface elevations. This academic exercise provides an indication of the relative level of impact associated with modifications to the dikes and overbanks for this portion of the Mississippi River and does not represent future plans or recommendations by the U.S. Army Corps of Engineers. Steady flow simulations were simulated for 12 May 2011 to investigate the variation in model results during the peak of the 2011 flood on the Mississippi River.
  • Notice of Five-Year Review: Chemours Chambers Works FUSRAP Site Deepwater, NJ

    The U.S. Army Corps of Engineers (USACE), Philadelphia District, is addressing radiological contamination in specific areas of the Chemours Chambers Works site in Deepwater, New Jersey. In the 1940s, manufacturing operations for the federal government resulted in limited areas of soil and groundwater contamination. USACE is addressing site cleanup under the Formerly Utilized Sites Remedial Action Program (FUSRAP). USACE is currently conducting a five-year review. The purpose of the review is to evaluate the implementation and performance of the site remedy to determine if the remedy is and will continue to protect human health and the environment.
  • USACE Cultural Investigations to Continue for Sabine Pass to Galveston Bay Project in Port Arthur, Freeport and Orange County

    GALVESTON, Texas – The Swift River Versar Joint Venture, under contract with the U.S. Army Corps of Engineers (USACE) Regional Planning and Environmental Center, began conducting field investigations on May 4, 2021, in the Port Arthur area. These investigations will begin on the western arm of the Jefferson County Drainage District No. 7 (DD7) levee near Taylors Bayou and will continue throughout the month of May, along the DD7 easement as well as on any properties in the Orange County and Freeport reaches for which additional rights-of-entry have been secured. It is anticipated that investigations in the Freeport area will begin in early to mid-June.
  • Modeling the Effect of Increased Sediment Loading on Bed Elevations of the Lower Missouri River

    Purpose: This US Army Corps of Engineers (USACE) National Regional Sediment Management Technical Note (RSM-TN) documents the effects of increased sediment loading to the Missouri River on bed elevations in the lower 498 miles. This was accomplished using a one-dimensional (1D) HEC-RAS 5.0.7 sediment model.
  • Crest Road at Gavins Point Dam closed May 11 for maintenance

    The U.S. Army Corps of Engineers, Omaha District announced that the road that crosses Gavins Point Dam near Yankton, SD, also known as Crest Road, will be closed Tuesday, May 11 from 9 a.m. – 11 a.m. for maintenance. People are asked to take alternate routes during the closure.