• Galveston District hosting Small Business Industry Days

    SAVE THE DATES: Join the U.S. Army Corps of Engineers Galveston District, the Velasco Drainage District, and the Jefferson County Drainage District No. 7 for TWO Industry Days where we will teach small businesses how to navigate the Federal contracting process in support of work opportunities for the Sabine Pass to Galveston Bay (S2G) Freeport and Port Arthur Projects.
  • LRD teammates show support for sexual assault awareness month by “stepping up”

    April is Sexual Assault Awareness month, and to kick off LRD’s month-long observation, teammates from the Great Lakes and Ohio River Division Headquarters in Cincinnati joined together on a brisk Spring morning to walk along the Ohio River.
  • Modernizing hydropower on the Snake River

    Hydropower, a clean, renewable and reliable energy source, just became safer for fish and more efficient at generating electricity, thanks to the new turbines at Ice Harbor Lock and Dam on the Snake River in southeast Washington.
  • 22-020 Dry conditions expected in the Boise River system

    BOISE, Idaho – A lower-than-normal water supply in the Boise River basin is prompting the U.S. Army Corps of Engineers (USACE) and the Bureau of Reclamation (Reclamation) to conserve as much water as possible until the beginning of the irrigation season. Therefore, flows from Lucky Peak Dam will continue to be at minimum releases of 220 cubic feet per second (cfs) until the start of irrigation season, which expected to start later in April.
  • Carlyle Lake Dam East Boat Ramp Closure

    CARLYLE LAKE – The U.S. Army Corps of Engineers Carlyle Lake Project will temporarily close the Dam East Boat Ramp to the public beginning the evening of Friday, April 8 through Sunday, April 10, 2022. The closure is necessary for the 739th Engineer Company to conduct military training exercises associated with launching, catching, and releasing interior bays on the water with approximately 60 to 70 soldiers participating.
  • Variety and Love are the Keys to Success for Columbus Ranger

    One of the keys to success, especially when it comes to work, is to love what you do. If loving what you do is the key, then it is no wonder why Taylor Barker has made such a positive impact for the U.S. Army Corps of Engineers, Mobile District Project Office in Columbus, Mississippi.
  • U.S. Army Corps of Engineers, Hartwell Lake seeks public comment on inflatable water park

    SAVANNAH, Ga. – The U.S. Army Corps of Engineers’ Hartwell Lake Office is seeking comments from the public regarding a proposed request from Big Water Marina to install and operate an inflatable water park amenity (called a Wibit) at the marina site.
  • Optimization of Reach-Scale Gravel Nourishment on the Green River below Howard Hanson Dam, King County, Washington

    Abstract: The US Army Corps of Engineers, Seattle District, nourishes gravel downstream of Howard Hanson Dam (HHD) on the Green River in Washington State. The study team developed numerical models to support the ongoing salmonid habitat improvement mission downstream of HHD. Recent advancements in computing and numerical modeling software make long-term simulations in steep, gravel, cobble, and boulder river environments cost effective. The team calibrated mobile-bed, sediment-transport models for the pre-dam and post-dam periods. The modeling explored geomorphic responses to flow and sediment regime changes associated with HHD construction and operation. The team found that pre-dam conditions were significantly more dynamic than post-dam conditions and may have had lower spawning habitat quality in the project vicinity. The team applied the Bank Stability and Toe Erosion Model to the site and then calibrated to the post-dam gravel augmentation period. The team implemented a new hiding routine in HEC-RAS that improved the simulated grain size trends but underestimated coarse sediment transport. Models without the hiding function overestimated grain size but matched bed elevations and mass flux very well. Decade-long simulations of four future gravel nourishment conditions showed continued sediment storage in the reach. The storage rate was sensitive to nourishment mass and grain size.
  • USACE’s Little Rock District to receive $168.5 million additional Infrastructure Investment and Job Act funds for FY22 and 23

    The U.S. Army Corps of Engineers, Little Rock District is receiving an additional $168.5 million from the Infrastructure Investment and Jobs Act that will be used for the district’s civil works program during fiscal year 2023.
  • A Dynamic Hyperbolic Surface Model for Responsive Data Mining

    Abstract: Data management systems impose structure on data via a static representation schema or data structure. Information from the data is extracted by executing queries based on predefined operators. This paradigm restricts the searchability of the data to concepts and relationships that are known or assumed to exist among the objects. While this is an effective and efficient means of retrieving simple information, we propose that such a structure severely limits the ability to derive breakthrough knowledge that exists in data under the guise of “unknown unknowns.” A dynamic system will alleviate this dependence, allowing theoretically infinite projections of the data to reveal discoverable relationships that are hidden by traditional use case-driven, static query systems. In this paper, we propose a framework for a data-responsive query algebra based on a dynamic hyperbolic surface model. Such a model could provide more intuitive access to analytics and insights from massive, aggregated datasets than existing methods. This model will significantly alter the means of addressing the underlying data by representing it as an arrangement on a dynamic, hyperbolic plane. Consequently, querying the data can be viewed as a process similar to quantum annealing, in terms of characterizing data representation as an energy minimization problem with numerous minima.