U.S. surveys contractors on RCC work for 135-MW Center Hill Dam

The U.S. Army Corps of Engineers has issued a request for information from contractors capable of constructing a roller-compacted-concrete berm to reinforce an earthen saddle dam at 135-MW Center Hill Dam in Tennessee. Responses are due Nov. 14.

The current request follows a sources sought notice in 2012 seeking information about the same dam safety RCC work at Center Hill in DeKalb County, Tenn. The Corps’ Nashville District awarded a contract in April to Terracon Consultants Inc. for geotechnical engineering services at Center Hill and at 270-MW Wolf Creek Dam in Kentucky.

The Corps also is taking bids Nov. 25 to refurbish turbine-generators at Center Hill.

The Nashville District now seeks information from firms capable of constructing the RCC berm at a water-retaining saddle dam 1,500 feet from Center Hill’s main dam. Work is to include blasting and excavation of foundation rock, grouting, and construction of the RCC berm immediately downstream of the saddle dam.

Work would include excavation of about 5,000 cubic yards of rock up to 20 feet deep, a dual line grout curtain, and blanket grouting with estimated total grout of 100,000 cubic yards. The RCC berm would be about 100 feet high and 900 feet long with up to 200,000 cubic yards of concrete.

Request for information documents may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering solicitation No. W912P514RRFI1 in the “Keyword/Solicitation #” box.

Responses are due by 8 a.m., Central time, Nov. 14 by e-mail to the address below. For information, contact Heather Turner, U.S. Army Corps of Engineers, Nashville District, P.O. Box 1070, 801 Broad St., Nashville, TN 37202-1070; (1) 615-736-7939; E-mail: heather.d.turner@usace.army.mil.

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