Home / Media / News / NewsSearch

  • Vicksburg District to reopen select beaches and recreation areas at Mississippi lakes beginning July 6

    Vicksburg, Miss. – The U.S. Army Corps of Engineers (USACE) Vicksburg District will reopen select beaches and recreation areas at its Mississippi lakes – Arkabutla Lake, Sardis Lake, Enid Lake and Grenada Lake – and incorporate preventative health measures beginning July 6.

  • Mobile District to Begin Dredging on the Mobile Bar Channel

    The U.S. Army Corps of Engineers, Mobile District announces that beginning the week of July 5, 2020, the District will commence dredging operations on the Mobile Bar Channel.

  • Berm construction completes last repair phase for dam rehabilitation

    SILVER POINT, Tenn. (July 1, 2020) – Officials celebrated completion of the last phase of repairs for the $353 million Center Hill Dam Safety Rehabilitation Project today where the Corps of Engineers recently finished constructing a roller compacted concrete berm to reinforce the auxiliary dam at Center Hill Lake, a secondary earthen embankment that fills a low area in the landscape just east of the main dam.

  • Army Corps of Engineers data driven to improve coastal projects

    In a hotel conference room on Long Island, New York, a team of experts are processing data and

  • PUBLICATION NOTICE: Laboratory spiking process of soil with various uranium and other heavy metals

    Abstract: Laboratory studies using metal spiked soils are challenging due to soil heterogeneity. This work provides an easy, quick, precise, and accurate technique for the preparation of spiked soils for laboratory research. The process described spiking soil with various uranium species and other heavy metals for laboratory scale pilot experiments under various biogeochemical conditions. The procedure involves grinding both dry soil and metal chemicals into the fine powder. The spiked soil mixture was further homogenized through a modified splitting and combining of the sample by diagonal flipping using plastic sheeting. Comparison of measured concentrations with theoretical values were obtained with <20% precision and accuracy. However, tradition spiking method with metal solution of-ten yielded high heterogeneous spiked soils due to strong metal adsorption in soils. Re-drying and re-grinding of soils were required following the spiking in order to homogenize treated soils, generating inhalable particulates. Thus appropriate personal protective equipment and practices are required for the safety concern. The present method with metal salt powder proved a safe, useful, quick, accurate and precise, and homogenized soil spiking method.

  • PUBLICATION NOTICE: Spatial Analysis of Precipitation and Snow Water Equivalent Extremes for the Columbia River Basin

    Abstract: Recent advances in the spatial statistics of extremes and model calibration were applied to develop and deliver areal-exceedance estimates for precipitation (PREC), by season and duration, and snow water equivalent (SWE), by cool season month and for the water year, for 758 delineated sub-basins of the Columbia River Basin (CRB), which correspond to a new CRB hydrology model watershed delineation. Understanding that future US Army Corps of Engineers, Northwestern Division, mission requirements may change, project execution also included the development and delivery of an application guidance document to credibly compute areal-exceedance estimates, including uncertainty, for PREC or SWE for any arbitrary area within the CRB. R, a free software environment for statistical computing and graphics (https://www.r-project.org/), and QGIS, a free and open source geographic information system (https://qgis.org/en/site/index.html), were the primary tools used for product development and delivery. The following R software packages were primarily used during project execution: evd, Glmnet, maps, raster, rgdal, SDMTools, sp, and SpatialExtremes.

  • PUBLICATION NOTICE: Laboratory Simulation of Uranium Metal Corrosion in Different Soil Moisture Regimes

    Abstract: A novel laboratory simulation system has been developed for the study of the corrosion of uranium metal in soils. Corrosion and transportation of depleted uranium (DU) as the metal undergoes weathering as a buried material within the soil environment. The corrosion of uranium metal in soil was not well understood due to the gas-liquid-solid phase of the soil. This study presents a novel method to investigate the change of uranium species during the process of process of oxidation of metallic uranium in these environments. Compared with other techniques used for the study of environmental corrosion of metals in soils, this method has the ad-vantage of low secondary uranium pollution, no energy consumption, and ease of operation. The simulation system has been used for the following studies: • Simultaneously simulate the corrosion of uranium metal in different soil moisture regimes • Study the influence of biogeochemical factors on the corrosion of uranium metal • Investigate the change of uranium species during oxidation.

  • 20-033 Dworshak Dam is cleaning out its Lost and Found

    Ahsahka, Idaho. – The U.S. Army Corps of Engineers at Dworshak Dam and Reservoir is cleaning out this past year’s lost and found items.

  • Corps seeks public comment on infrastructure improvements for the city of Ashley, North Dakota

    A proposal to improve streets and sanitary sewer and water infrastructure for the city of Ashley, North Dakota, is currently available for public comment through July 31, 2020.

  • Corps announces public comment and webinar on planned deviation from Lake O Regulation Schedule to reduce risk from Harmful Algal Blooms

    The U.S. Army Corps of Engineers Jacksonville District, announces public comment on the Draft Revised Supplemental Environmental Assessment (EA) and Proposed Finding of No Significant Impact (FONSI) for the planned deviation from the water control plan for Lake Okeechobee and the Everglades Agricultural Area, also known as the Lake Okeechobee Regulation Schedule (LORS 2008) in order to reduce risk from Harmful Algal Blooms. A webinar to provide information regarding the proposed planned deviation is planned for 1 p.m. on July 21. Public comments are due July 30.