Keller North America

Owner:

US Army Corps of Engineers

General Contractor:

TreviIcos and Soletanche JV

Scope Of Work

Wolf Creek Dam, completed in the late 1950s, is comprised of a 1,796-ft-long concrete gravity section and a 3,940-ft-long earthen embankment section, founded on karstic limestone. It can hold back 6-million-acre-ft of water at full reservoir level, making it the largest reservoir by volume in the eastern United States and the ninth largest pool by volume in the entire United States.

Between 1967 and 2005, several significant mass rock grouting projects were undertaken to remediate internal erosion due to seepage through the karstic bedrock. A concrete cut-off wall was installed between 1975 and 1979. By 2005, however, further deterioration led to the USACE designating the dam as a high risk for failure. A further grouting program was undertaken, beginning in 2007, and subsequently a joint venture (JV) of TreviIcos and Soletanche was awarded a contract to install a larger, deeper cut-off wall, along with extensive grouting to facilitate safe construction of the cut-off and extend its influence. The grouting sub-contract was awarded to Keller and work began in 2009.