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Tag: seepage
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  • USACE awards $29.5 million construction contract for Sacramento River levee improvements

    The U.S. Army Corps of Engineers Sacramento District awarded a $29.5 million construction contract on January 15 to Nordic Industries Inc. of Olivehurst, for 1.8 miles of levee improvements at four sites along the Sacramento River East Levee. Construction in 2021 will entail installation of seepage cutoff walls on both sides of Business 80/Highway 50 just upstream of Miller Park, on the south side of the little pocket, and on the north side of the big pocket.
  • Study of Sand Boil Development at Kaskaskia Island, IL, Middle Mississippi River Valley

    Abstract: Mississippi River flooding in 2013 and 2016 caused severe underseepage and development of several medium to large high-energy sand boils behind the landside levee toe at Kaskaskia Island, IL. This levee system is located between St. Louis and Cape Girardeau, MO, and is part of the Kaskaskia Island Drainage and Levee District on the Middle Mississippi River. Flooding on the Mississippi River in 2013 and 2016 was below the design flowline for this levee. This report documents a case history study into the causes of seepage, piping, and sand boil development at a levee reach at Kaskaskia. Site-specific geotechnical data were collected and evaluated to determine the causes for poor performance at the studied levee reach locations. Data collected involved design documents, geologic and geotechnical borings, closely spaced cone-penetrometer tests (CPTs), electrical resistivity surveys, laboratory soil testing of sand boil ejecta, CPT samples from targeted stratigraphic horizons in the subsurface, and both piezometer and river-stage data. These data indicate sand boils present within this levee reach involved a chronic seepage condition that became progressively worse through time. This condition was directly related to the underlying site geology, namely the top stratum thickness and the depositional environment in this levee reach.
  • St. Francis River Basin Partners, Mississippi River Commission, and Corps of Engineers to break ground on seepage remediation projects

    Groundbreaking ceremony for construction of multiple seepage remediation projects to include Below Senath, Missouri; Big Island, Arkansas; and Below Piggott/Below Hwy 90, Arkansas. The Below Senath Seepage Remediation project, in Dunklin County, Missouri, will reduce risk from the effects of under-seepage by performing drainage ditch work to change the flow of water into a more desirable pattern for the stability of the levee. Work began in May 2020, and the tentative completion date is October 2020. The local partner for the project is Levee District No. 4 of Dunklin County, Missouri, and the prime contractor is C&M Contractors.
  • Big Island, Below Senath seepage remediation projects awarded

    The Memphis District U.S. Army Corps of Engineers recently awarded Task Orders to construct two seepage remediation projects in Arkansas and in Missouri.
  • Sacramento River levee improvements next step in $1.5 billion plan to modernize Sacramento-area flood infrastructure

    The U.S. Army Corps of Engineers Sacramento District awarded a $64 million construction contract on February 14 to Maloney Odin Joint Venture of Novato, California, for nearly three miles of levee improvements along the Sacramento River East Levee. This project will kick off major construction in the region to complete approximately $1.5 billion of work to upgrade levees along the American and Sacramento Rivers as well as widening the Sacramento Weir and Bypass.
  • Corps to host East Branch Dam Safety Modification Project Public Meeting

    The U.S. Army Corps of Engineers is hosting a public meeting to discuss the progress and activities of the East Branch Dam Safety Modification Project in Elk County, Pennsylvania.
  • Corps continues to reduce flows from Lake Okeechobee

    The U.S. Army Corps of Engineers Jacksonville District will reduce flows from Lake Okeechobee. Starting Friday (Dec. 1), the target flow for the Caloosahatchee Estuary will be reduced to 4,000 cubic feet per second (cfs) as measured at Moore Haven Lock & Dam (S-77). The target flow for the St. Lucie Estuary will be reduced to 1,800 cfs as measured at St. Lucie Lock & Dam (S-80) near Stuart.
  • Corps to host East Branch Dam Safety Project Public Meeting, Nov. 8

    U.S. Army Corps of Engineers to host East Branch Safety Project public meeting, Nov. 8.
  • Corps continues daily inspections of Herbert Hoover Dike

    Staff with the U.S. Army Corps of Engineers Jacksonville District continue to report no significant issues of concern following inspections of the Herbert Hoover Dike that surrounds Lake Okeechobee in south Florida.
  • Engineering and construction trio forges goodwill on Mosul Dam projects

    NASHVILLE, Tenn. (April 20, 2017) – An engineering and construction trio from the U.S. Army Corps of Engineers Nashville District recently returned home from Iraq where they helped oversee construction projects at Mosul Dam, forged goodwill with the international repair team, and even supported the military operation to retake the city of Mosul.