• Early Life-Cycle Prediction of Reliability

    Abstract: The intent of this project is to investigate a variety of approaches for the development of a basic model for the early life-cycle prediction of reliability (pre-Milestone A). The United States Department of Defense (DoD) currently utilizes an acquisition framework in which system development advances through a series of checkpoints known as milestones. Each milestone represents a decision point, with Milestone A being the earliest in the life cycle. At Milestone A, also known as the risk-reduction decision, the DoD evaluates design concepts while also committing funds to the maturation of technologies in an effort to mitigate future risks. Typically, little is known about the particular system to be developed at this point in the acquisition life cycle, but DoD regulations require program man-agers to submit system reliability information (OUSD[A&S] 2015). Traditional reliability predictions, however, require extensive knowledge of the system of interest to produce accurate results. This level of knowledge is unavailable at or before Milestone A, there-fore, there is a need to create models and methodologies for the prediction of system reliability. This report provides an overview of a variety of methods investigated to improve the prediction of early life cycle reliability.
  • Representative Beach Profile Generator

    Abstract: The purpose of this Coastal and Hydraulics Engineering Technical Note (CHETN) is to introduce an Esri ArcGIS Pro ArcPy Toolbox entitled “Representative Beach Profile Generator (RBPG)” that generates a single representative profile for a given study area based on elevation profiles. The toolbox aligns and averages input elevation profiles into a single profile based upon a chosen alignment feature. Furthermore, the toolbox allows the user to create maximum and minimum trapezoidal profile approximations for use within numerical models such as Storm-Induced BEAch CHange (SBEACH) and Beach-fx. This CHETN presents a brief description of the toolbox methods and includes a short demonstration of the toolbox’s application to help familiarize the user with inputs, outputs, and possible uses. The RBPG toolbox is available for public download at the link where this paper is hosted with the US Army Engineer Research and Development Center library services (http://dx.doi.org/10.21079/11681/46916).
  • Maintenance work on Vertical Lift Railroad Bridge will cause upcoming Canal closures for marine traffic

    The U.S. Army Corps of Engineers, New England District announced today that work on the Cape Cod
  • USACE to close Stamford Hurricane Protection Barrier East Branch Navigation Gate April 24 for maintenance inspection

    The U.S. Army Corps of Engineers, New England District announced today that there will be a
  • Investing in Our Planet: Earth Day 2023

    On April 22, the U.S. Army Corps of Engineers (USACE) joins our global community in the celebration of Earth Day. Protecting and preserving our environment is an enduring mission for USACE.
  • Corps announces county road closures for I-29 grade raise project

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, along with the Metro Flood Diversion Authority and the North Dakota Department of Transportation, will resume construction on the Interstate 29 road raise next week.
  • Salvage operations continue following barge accident

    Salvage Operations continue following a barge accident, which occurred March 28 at McAlpine Locks
  • Maintenance to close temporarily Canyon Lake Dam service road  

    Fort Worth District, U.S. Army Corps of Engineers officials at Canyon Lake will temporarily close the dam service road for embankment maintenance April 24 through 27. The Overlook Park Road will be open for public enjoyment, but the dam service road is expected to be closed for four days to allow a contractor to stage equipment and perform maintenance.
  • USACE Vicksburg District announces closure to section of roadway at Arkabutla Dam

    VICKSBURG, Miss. -- The U.S. Army Corps of Engineers (USACE) Vicksburg District has made a closure to a small section of road along the bottom of Arkabutla Dam. The closure affects the only the section of roadway above the outlet tunnel. The closure will not affect the remainder of the road across the bottom of the dam, the road across the top of the dam, or either side of the outlet channel recreation area. Visitors traveling north along Arkabutla Dam Road/MS Hwy. 301 will need to take the road across the top of Arkabutla Dam.
  • Corps drives new traffic plan for Anderson Road Day Use Area

    NASHVILLE, Tenn. (April 20, 2023) – The U.S. Army Corps of Engineers Nashville District is implementing a new traffic plan beginning this Memorial Day for the Anderson Road Day Use Area at J. Percy Priest Lake. The park staff plans to use an electric gate and roundabout to manage traffic flow at the intersection of Anderson Road and Couchville Pike.