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  • Center Hill Dam featured in National Inventory of Dams rollout

    LANCASTER, Tenn. (Nov. 5, 2021) – The National Inventory of Dams is being updated at the end of the year and the U.S. Army Corps of Engineers plans to feature Center Hill Dam in a video as part of its rollout with the public.

  • A tale of two dams: The quiet warrior and the gritty worker

    The brother and sister duo may seem quiet, but their work is hardly dormant. Their names are Conemaugh and Loyalhanna: two giants whose front gates are only eight miles apart. They both reside in the town of Saltsburg, Pennsylvania, with a population of roughly 700.

  • Army Corps of Engineers waives day use fees at recreation areas in observance of Veterans Day

     The U.S. Army Corps of Engineers announced this week that it will waive day use fees at its more

  • District awards phase two development contract for Zorinsky Lake maintenance corridor

    The U.S. Army Corps of Engineers, Omaha District Missouri River Project Office recently awarded a $270K contract for the creation of a maintenance corridor along the southern portion of the federal property line at Zorinsky Lake which will fall between 168th St. and 184th Ave. in Omaha.

  • Emsworth Locks and Dam celebrates centennial anniversary

    In September 1921, 100 years ago, the U.S. Army Corps of Engineers Pittsburgh District opened Emsworth Locks and Dam located along the Ohio River in Emsworth, Pennsylvania, and placed it into operation.

  • Backward Erosion Testing: Magnolia Levee

    Abstract: Using a confined flume device, an experimental study investigated the critical horizontal gradient of soils obtained from a site identified as potentially vulnerable to backward erosion piping (BEP). Tests were conducted on glacial outwash material obtained from a sand and gravel quarry in the vicinity of Magnolia Levee in the community of Magnolia, OH. The two bulk samples collected from the quarry had similar grain-size distributions, grain roundness, and depositional environments as the foundation materials beneath the levee. Samples were prepared at various densities and subjected to gradual increases of flow in a wooden flume with an acrylic top until BEP was observed. The critical average horizontal gradient ranged from 0.21 to 0.30 for a bulk sample with a coefficient of uniformity of 1.6, while tests conducted on a bulk sample with a coefficient of uniformity of 2.5 yielded critical average horizontal gradients of 0.31 to 0.36. The critical average gradients measured during these tests compared favorably to values in the literature after applying adjustments according to Schmertmann’s method.

  • Mother Nature can be comforting but has scolded (scalded) us this year

    Mother Nature can be comforting and calm but this year it seems like she used our first, middle and last name as she scolded (or scalded) us … “Pacific North [emphasis added] West, what in the world were you thinking?!” … for punching our hypothetical little sister (California). Our punishment has been drought, record-breaking temperatures, wildfires and extremely dry conditions throughout the region. Even though the early part of this summer was a scorching hot nightmare, north western Oregon is fortunate to have a consistent flow of water – thanks to the U.S. Army Corps of Engineers’ system of dams and reservoirs in the Willamette Valley.

  • Otter Brook Lake Beach, Surry Mountain Lake Beach parks to remain closed for rest of season due to flooding

     The U.S. Army Corps of Engineers, New England District announced today that the parks at Otter

  • Pittsburgh District provides freedom of movement on Independence Day and every day

    The U.S. Army Corps of Engineers Pittsburgh District’s locks and dams operate year-round, including federal holidays.

  • Rough River Outlet Works Physical Model Study

    Abstract: The US Army Corps of Engineers, Louisville District, requested the support and assistance of the US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory (CHL), in the evaluation of the hydraulic performance of the replacement Outlet Works for Rough River Dam. To support the design effort, CHL constructed a 1:25.85 scale physical model. The proposed features of the model in the domain are the curved approach channel, intake structure, transition, curved conduit, stilling basin, concrete apron, and retreat channel. Tests performed to evaluate the hydraulic performance illuminated a few design concerns. To address these issues, several key design changes were made. These included the retreat channel slope, end sill design, and transition design.