Milestone reached with completion of protective concrete embankment wall at Wolf Creek Dam

June 22, 2012

JAMESTOWN, Ky. - The U.S. Army Corps of Engineers Nashville District reached a major milestone here this week at the Wolf Creek Dam Foundation Remediation Project when work crews installed the 433rd and final panel in completing the protective concrete embankment wall. While this wall does not create a water barrier through the dam’s karst limestone foundation, it completes a major stage of construction that is critical to the final stage of construction – the main barrier wall, which is scheduled to be completed by December 2013.

The PCEW is a six-foot wide and up to 230 foot deep concrete wall through the dam’s clay embankment down to top of rock. It extends 3,800 feet along the length of the embankment. Its purpose is to protect the embankment while the main barrier wall is being constructed. The PCEW was one of several complicated components on the project and its safe completion without any major complications is a significant achievement.

Bill DeBruyn, resident engineer, said the entire Wolf Creek team has been working hard to reach this milestone. “They felt a tremendous and well-deserved sense of accomplishment when the last concrete was placed for the PCEW,” he said. “Our contractor continues to work two shifts a day, six days a week in an effort to complete the project as soon as possible.”

The contractor, Treviicos-Soletanche Joint Venture, continues to install the main barrier wall and has completed more than 70 percent of the concrete piles that create it. These piles extend up to 275 feet deep through the embankment and well into the limestone to block openings in the rock. The main barrier wall must be completed before Lake Cumberland can be raised back to its normal levels.

The contractor achieved another milestone this month when it reached 920,000 man-hours without an accident that would cause a worker to miss time on the job. Nashville District officials said a commitment to safety by Treviicos-Soletanche Joint Venture also contributed to timely completion of the PCEW.

The foundation remediation began in 2008 when the Corps took aggressive action to reduce the risk of failure and to effectively cut off seepage through the limestone caused by erosion of the dam’s foundation from water pressure in the reservoir.

The Corps made an emergency decision in 2007 to maintain the lake at elevation 680 feet. Despite lower lake levels that have been maintained during construction, Lake Cumberland is still the third largest lake in Kentucky, and recreation opportunities for fishing, camping, and water sports remain highly accessible.

Download the article

  • The U.S. Army Corps of Engineers, Huntington District, has awarded TREVIICOS the construction of the seepage barrier at Bolivar Dam in Ohio

    April 3, 2014
    The work is expected to take about four years to complete.
  • TREVIICOS awarded of the OCI Wyoming - Pond 2 North Cutoff Wall project in Green River

    February 28, 2014
    The work will begin in April 2014.
  • First Street Tunnel, Washington DC

    January 29, 2014
    The construction will begin in May 2014
  • DFI 2013 Outstanding Project Award

    September 27, 2013
    TREVIICOS is a recipient for Wolf Creek Dam Foundation Remediation Project
  • COSTA CONCORDIA WRECK PARBUCKLING AND REMOVAL

    September 13, 2013
    Trevi Group far-reaching experience in underground engineering was put to use in the wreck removal of the Costa Concordia cruise liner
  • DFI Announces the 2013 Outstanding Project Award Winner: Wolf Creek Dam Foundation Remediation Project

    June 26, 2013
    DFI Press Release
  • Extreme Dam Repair

    May 20, 2013
    DFI Magazine, Feb/Mar 2013
  • Corps completes barrier wall at Wolf Creek Dam

    March 6, 2013
    U.S. Army Corps of Engineers (Nashville District) News Release
  • 2 years and more than 1,200,000 hours without a lost time injury

    February 25, 2013
    Wolf Creek Dam Foundation Remediation Project reaches another important safety/production milestone
  • Corps ahead of schedule, making plans to raise Lake Cumberland as Wolf Creek Foundation Remediation Project nears completion

    January 18, 2013
    U.S. Army Corps of Engineers (Nashville District) News Release
  • Soilmec Hydromill Shatters Slurry-Wall Records

    December 12, 2012
    By Peter Reina - ENR.com
  • Work crews reach million-hour safety milestone at Wolf Creek Dam

    August 17, 2012
    U.S. Army Corps of Engineers (Nashville District) News Release
  • Construction commotion moves Corps to Wolf Creek Dam safety milestone

    February 28, 2012
    US Army Corps of Engineers - Nashville District
  • Foundation Flaws Make Kentucky's Wolf Creek Dam a High-Risk Priority

    February 27, 2012
    ENR.com
  • 4th International Conference on Grouting and Deep Mixing

    February 15 - 18, 2012
    New Orleans, LA
  • WOLF CREEK DAM FOUNDATION REMEDIATION PROJECT REACHES 500,000 HOUR ACHIEVEMENT

    November 3, 2011
    News Release - US Army Corps of Engineers, Nashville District
  • RAISING THE LEVEE

    August 1, 2011
    ARCHER WESTERN AND ALBERICI STARTED A STRATEGIC LEVEE PROJECT TWO YEARS AGO
  • Trevi/Soilmec a Synergistic Success Story

    July 6, 2011
    In June of 2010, a group of ADSC North American geo-construction specialty subcontractors traveled to Italy to observe a variety of challenging deep foundation construction projects being undertaken by ADSC International Contractor Member, Trevi SpA, and to visit the Trevi Group headquarters and the Soilmec manufacturing facility in Cesena, Italy.
  • ENR.com: $300 million Deep Soil Mixing Project Racing Toward Completion

    March 16, 2011
    In only two weeks, Treviicos South will have completed what is being hailed as the largest deep soil mixing project in the U.S., and possibly the world.
  • Mixing Up Protection

    May 7, 2010
    Huge grouting job supports levees