• Contract awarded for levee work for the West Shore Lake Pontchartrain project

    The U.S. Army Corps of Engineers, New Orleans District, recently awarded a contract for constructing the ninth reach including levee, floodwall and a gate on the West Shore Lake Pontchartrain (WSLP) Hurricane and Storm Damage Risk Reduction project. This contract will construct approximately 1.1 miles of the 18.5-mile-long levee system that will provide 100-year level risk reduction to the area primarily in St. John the Baptist, St. James and St. Charles Parish.
  • Low Sill Control Structure: Physical Modeling Investigation of Riprap Stability Downstream of End Sill

    The model investigation reported herein describes the process to model and analyze the stability of scaled riprap in the existing 1:55 Froude-scaled Low Sill Control Structure physical model. The existing model is a fixed-bed model, so modifications were made to create a testing section for the scaled stone. Three separate gradations of scaled riprap were tested at varying boundary conditions (discharge, head and tailwater elevations, and gate openings). Each test was surveyed using lidar for pre to posttest comparisons. It was found that Gradation B remained stable throughout the tests in the physical model.
  • Lessons in Rearing Mealworms for Plastics Degradation

    Purpose: The primary objective of this research is to determine if plastics-degrading gut bacterial communities from a nonoptimal insect host can be successfully transplanted into the gut of the optimal mealworm host for large scale composting. To achieve this goal, foundational questions about basic mealworm husbandry needed to be addressed, including proper housing and feeding regimes, expected plastics degradation rates, and survivability on plastics as a food source. This technical note serves as a mealworm husbandry protocol and a guide for lessons learned in the early stages of experimentation dealing with establishment of plastics-degrading mealworm colonies.
  • Engineering With Nature: An Atlas, Volume 3

    Abstract: Engineering With Nature: An Atlas, Volume 3 showcases EWN principles and practices “in action” through 58 projects from around the world. These exemplary projects demonstrate what it means to partner with nature to deliver engineering solutions with triple-win benefits. The collection of projects included were developed and constructed by a large number of government, private sector, nongovernmental organizations, and other organizations. Through the use of photographs and narrative descriptions, the EWN Atlas was developed to inspire interested readers and practitioners with the potential to engineer with nature.
  • CTX receives funding in FY24 Work Plan

    The U.S. Army Corps of Engineers (USACE) allocated the first installment of federal funding toward the USACE Galveston District’s (SWG) Coastal Texas Project (CTX).
  • Raystown Lake to commemorate 50th anniversary with public dam tours, rededication ceremony

    The U.S. Army Corps of Engineers (USACE), Baltimore District, proudly commemorates Raystown Dam’s
  • Army Corps improves Kootenai River habitat with second large wood placement

    Army Corps of Engineers released the second batch of fish habitat logs into the Kootenai River May 7, as part of its “Wood is Good” large wood nourishment project. USACE hopes the project is a template for other national and global entities to use, for similar Engineering With Nature projects on rivers they manage.
  • Flood data reveals USACE projects prevented $180 million in damages in Cumberland River Basin

    NASHVILLE, Tenn. (May 21, 2024) – A preliminary analysis of data from the early May high-water event in middle Tennessee, conducted by the U.S. Army Corps of Engineers Nashville District, has revealed that USACE projects reduced flood damage by an estimated $180 million.
  • Corps releases water from Lac qui Parle Dam to assess conditions

    The U.S. Army Corps of Engineers, St. Paul District, will maintain higher than normal flows at Lac qui Parle Dam, near Watson, Minnesota, to assess conditions from high water a few years ago.
  • Site Selection and Conceptual Designs for Beneficial Use of Dredged Material Sites for Habitat Creation in the Lower Columbia River

    Abstract: Channel maintenance in most major rivers throughout the United States requires ongoing dredging to maintain navigability. The US Army Corps of Engineers explores several options for placement based on sediment characteristics, material quantity, cost, operational constraints, and minimization of potential adverse effects to existing resources and habitat. It is a priority to beneficially reuse dredged sediments to create habitat and retain sediments within the river system whenever possible. Nonetheless, there can be discrepancies among state and federal resource agencies, landowners, tribes, and various other stakeholders about what constitutes a benefit and how those benefits are ultimately weighed against short- and long-term tradeoffs. This work leveraged prior Regional Sediment Management efforts building consensus among stakeholders on a suite of viable strategies for in-water placement in the lower Columbia River. The goal was to identify suitable locations for applying the various strategies to maximize habitat benefits and minimize potential adverse effects. A multistep site-selection matrix was developed with criteria accounting for existing site conditions, overall placement capacity, tradeoffs, long-term maintenance, cost, stakeholder concerns, and landscape principles in the context of other habitat restoration projects implemented in the lower river. Three highly ranked sites were selected for conceptual design and exemplify results of collaborative beneficial use implementation.