Tag: dams
  • Corps of Engineers enhances Caney Fork River ecosystem with Center Hill Dam orifice gate reinstallation

    LANCASTER, Tenn. (June 10, 2024) – As part of an ongoing commitment to bolster the ecological health and recreational opportunities along the Caney Fork River, the U.S. Army Corps of Engineers Nashville District is pleased to announce a significant milestone in the operation of Center Hill Dam.
  • Lock and Dam 25, Upper Mississippi River Navigation Study: Ship-Simulation Results

    Abstract: The US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory (CHL), used the Ship/Tow Simulator to evaluate navigational conditions for the US Army Corps of Engineers, St. Louis District (MVS), proposed 1,200 feet (ft) lock chamber at Lock and Dam 25 in a tow simulation study. The study considers the impacts to navigation throughout construction sequences of the proposed 1,200 ft lock chamber and the final completed project. Testing occurred at CHL in October–November 2022 with five industry tow pilots. A total of 47 unique test conditions for a total of 187 ship-simulation exercises were evaluated. All final project simulations indicated that the design is feasible. When testing the construction scenarios of the design, it was evident that a tug assist boat would be necessary for entering the 600 ft lock for both approaches. Results found that the intermediate wall construction should begin at the existing structure and progress downstream. Entering the 600 ft lock from the pool side was additionally completed successfully; however, modifications are needed for entering from the tailwater side. Ultimately, the results of this study will aid MVS in the design plan and decision-making regarding the proposed lock.
  • Dale Hollow Dam Road closing for preventative maintenance

    CELINA, Tenn. (June 5, 2024) – The U.S. Army Corps of Engineers Nashville District announces Dale Hollow Dam Road is closing to all traffic across the dam 8 a.m. Monday, June 17 for an extended amount of time for preventative maintenance on and around the roadway. The end date is yet to be determined. Dates are subject to change based on contractor schedule.
  • It could have been so much worse: How the Pittsburgh District prevented six feet of water from reaching downtown

    The U.S. Army Corps of Engineers Pittsburgh District faced back-to-back high-water events due to heavy rains in April, holding back an estimated six feet of flooding from reaching the Point of Pittsburgh.
  • 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 to temporarily close Bell Road over J. Percy Priest Dam for maintenance

    NASHVILLE, Tenn. (May 17, 2024) – The U.S. Army Corps of Engineers Nashville District announces Bell Road across J. Percy Priest Dam is closing at 6 a.m. Tuesday, May 28, 2024, until 6 p.m. Friday, May 31, 2024, for routine maintenance activities.
  • Snow-Impacted National Inventory of Dams by GAGESII Watershed

    Abstract: This Engineering Research and Development Center (ERDC) Technical Note describes the development of a set of locations within the contiguous United States (CONUS) where snowmelt is a component of the annual streamflow. The locations are selected from the US Geological Survey (USGS) Geospatial Attributes of Gages for Evaluating Streamflow II (GAGESII) and National Inventory of Dams (NID) data sets. The 30-year normal snow regimes were used to identify all GAGESII watersheds that have any of the basin delineated as transitional (rain/snow), snow dominated, or perennial snow zones. NID dams that are within snow affected GAGESII watersheds are included in the data set. The purpose of this ERDC Technical Note is to describe the development of a comprehensive data set of CONUS GAGESII and dam infrastructure affected by snow changing regimes.
  • Researchers develop tools to forecast risk of potential infrastructure failure

    The U.S. Army Corps of Engineers (USACE) operates and maintains approximately 740 dams and associated structures that provide significant, multiple benefits to the nation. In order to effectively operate and maintain those dams, USACE applies risk-informed decision making to evaluate, prioritize and justify dam safety decisions. Using risk information allows the organization to repair its dams in the most effective manner within a constrained budget.
  • Levees and Dams at Fort Riley, Kansas, and the Response to the 1951 Flood

    Abstract: This project provides a historic context and inventory for the levees and dams constructed at Fort Riley, Kansas. The purpose of this historic con-text and inventory is to determine the levees and dams’ eligibility for listing in the National Register of Historic Places (NRHP). Determinations of eligibility to the NRHP are then made based on the significance of the levees and dams and the degree to which they retain their integrity for conveying that significance. The authors inventoried and evaluated three levees and two lake dams on the installation. Based on the historic context and inventory, researchers for this project have determined that none of the levees and dams are eligible for the inclusion in the NRHP nor was there enough evidence for a noncontiguous historic district at Fort Riley.
  • Corps to begin construction for fish reefs on Monongahela River

    The U.S. Army Corps of Engineers Pittsburgh District is notifying the public that onsite work to build stone fish reefs on the Monongahela River near the borough of Elizabeth will begin Oct. 30. The work is the first of five segments of a $2.4 million contract to install the fish reefs between Monongahela River miles 21.3 and 33.5. The work will begin at river mile 33.5 in Pool 3, between Victory Hills and the city of Monongahela, and continue downstream to river mile 21.3 in Pool 2 near Clairton, Pennsylvania.