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  • ERDC researchers design, test new mobile treatment for relief wells

    A multi-agency team of researchers and specialists from the U.S. Army Engineer Research and Development Center (ERDC), the U.S. Army Corps of Engineers (USACE) Vicksburg District, the U.S. Environmental Protection Agency and industry collaborator WaterStep have partnered to design and test a new approach to clean and maintain relief wells from biofilm buildup. The new technology is called the Relief Well Sustainment (RWS) Deployable Resilient Installation water Purification and treatment System (DRIPS) mobile trailer.

  • ERDC’s Taylor Rycroft named USACE Researcher of the Year

    A researcher with the U. S. Army Engineer Research and Development Center’s (ERDC) Environmental Laboratory (EL) is receiving recognition for his role in protecting the environment. Taylor Rycroft, a research environmental engineer, was named the 2024 USACE Researcher of the Year for his work with the Wellbot and Cyanobacterial Suppression Through Ultraviolet-C Neutralization (CyanoSTUN) technologies.

  • Wellbot offers innovative solution to cleaning, maintaining relief wells

    Wellbot is an autonomous device that blends the power of UVC-emitting lamps with powerful brushes to address the fouling and corrosion that limits a well’s capacity. It provides districts with a cost-effective alternative without the potential risk from using chemicals, or the need for significant equipment and manpower to deploy.

  • Relief well installation project substantially complete

    A Memphis District Project Delivery Team recently completed work to construct 25 new relief wells in Scott County, Missouri. To execute the project, a contract for $1,630,303.15 was awarded to VuCon, LLC., in August 2018. The contract was administered by the Memphis District’s Caruthersville Area Office, and the job was declared substantially complete June 24, 2022.

  • Three-Dimensional Underseepage Evaluation for Profit Island Vicinity Levee, North of Baton Rouge, Louisiana

    Abstract: This project developed a three-dimensional (3D) seepage model to evaluate efficiency of 84 relief wells and factors of safety (FoS) along the Profit Island vicinity levee (PIVL), north of Baton Rouge, Louisiana. The PIVL model was built based on US Geological Survey MODFLOW-USG. Moreover, a 3D seepage model of RocScience RS3 was also built for a specific study of relief well experiments conducted by the US Army Corps of Engineers in the 1930s and 1940s. The PIVL model was calibrated with measured piezometric head data and relief well flow rates in 1997. Six flood scenarios were conducted: the extreme flood (56 feet), design flood (52.4 feet), 1997 flood (50 feet), 2008 flood (49.22 feet), 2017 flood (45.55 feet), and 2018 flood (49.1 feet). The modeling results show that FoS are all above 1.5 given relief wells at the 1997 design condition. FoS calculated by the blanket theory are more conservative than those by the PIVL model because designed discharge rates were not observed in the field. In comparison with measured flow rates in 2008, the PIVL modeling result indicates potential clogging at many relief wells. New piezometric data and well discharge data are recommended to re-evaluate factors of safety.

  • Substantial completion of Nash Relief Well Rehabilitation

    Congratulations to Memphis District project delivery team members for their recent work to rehabilitate 128 existing relief wells just south of Cape Girardeau, Missouri.

  • Final levee system project on horizon as MVM completes preliminary projects

    The U.S. Army Corps of Engineers Memphis District, in partnership with the Fulton County Board of Levee Commissioners (FCBLC), is nearing completion of two maintenance projects, the Island 8 Parcel 1 Relief Well Ditch Restoration Project and the Lake No. 9 Collector Ditch Erosion Repair Project, both located along the Mississippi River Mainline Levee south of Hickman, Kentucky. Completing these projects is essential, but what's even more important is what comes after. Once finished, the district will be that much closer to executing the last and final project needed to complete the entire levee system.

  • Construction project begins below Gavins Point Dam

    A large construction contract has begun in the area below Gavins Point Dam, along Lake Yankton, near Yankton, SD. The project is to connect relief wells, which are at the bottom, or “toe” of the dam, that are designed to relieve excess water pressure on the earthen structure.

  • Success: Two Projects: Trotters, Rena Lara seepage remediation

    The fifth and final ribbon-cutting ceremony, held on Jan. 20, celebrated two construction projects completed in Tunica County, Trotters, Mississippi, and Coahoma County, Rena Lara, Mississippi.