UPDATE – U.S. seeks bids for cutoff wall at 270-MW Wolf Creek Dam

The Corps of Engineers’ Nashville District seeks bids to construct a concrete seepage barrier at 270-MW Wolf Creek Dam, near Jamestown, Ky. Proposals are due March 11, 2008.

The Corps estimates the cutoff wall will cost from $100 million to $250 million. (HNN 11/12/07) The contractor is to begin work within 15 days of notice to proceed, and will have four years to complete the work.

The Corps previously identified Wolf Creek as one of several dams critically near failure or having extremely high life or economic risk. (HNN 12/5/07) An independent review panel subsequently agreed the 5,736-foot-long, 258-foot-tall, earthfill and concrete gravity dam has a significant potential for failure.

The contractor is to complete a partially constructed, 4,500-foot-long grout curtain and install a 4,200-foot-long, two-foot-thick concrete seepage barrier with a total surface area of about 980,000 square feet. The cutoff wall is to be built between two grout curtains as part of the government’s $309 million seepage repair plan.

The solicitation notice may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering solicitation number W912P5-07-R-0005, without hyphens, in the �Quick Search� box and clicking on the Technical Data Package link. While the synopsis is on the FBO site, registration on the Federal Technical Data Solutions website, www.fedteds.gov, is required to obtain the actual solicitation.

The Corps advises geotechnical specifications for the work are too large to put on-line. Interested parties may obtain those specifications on CD from the Corps’ Nashville District, 110 9th Ave. S., Nashville, TN 37203-1070.

Proposals are due by 2 p.m. March 11, 2008, to John Grayson, Contracting Officer, U.S. Army Corps of Engineers, Nashville District, CELRN-CT, RM A604, 110 9th Ave. S., P.O. Box 1070, Nashville, TN 37203-1070, (1) 615-736-7933; E-mail: john.grayson@usace.army.mil.

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