UPDATE – Corps seeks grouting bids for high-risk Clearwater Dam

The Corps of Engineers seeks bids to complete exploratory drilling and grouting for a concrete cutoff wall proposed for the �high-risk� Clearwater Lake Dam in Missouri. Bids are due Aug. 1.

The Corps recently identified Clearwater Dam, a flood control structure built on Missouri’s Black River in 1948, as one of six dams with a high risk of failure, from a screening of 130 dams. (HNN 5/29/07)

The Corps said it wants a contractor to perform exploratory drilling and grouting along the entire length of the cutoff wall. The government said the work is highly technical in nature and is to provide data to be used in the design and construction of the cutoff wall. Additionally, a substantial amount of grouting will be done in the contract period to prevent slurry and concrete loss during future construction of the wall.

The value of the contract for drilling and grouting is between $10 million and $25 million. The cutoff wall is to be constructed later, as part of a Phase II contract, which will be handled separately. The Corps has said it expects to spend a total of $90 million to build the cutoff wall to control seepage and eliminate the risk of sinkholes.

The Corps already was well aware of trouble at the dam, having discovered a sinkhole in the upstream face of the structure in January 2003, during a routine inspection.

In solicitation No. W9127S-07-R-0001, the government said it intends to evaluate proposals and award the contract without discussions with bidders, although it might request clarifications. Solicitation documents, plans, and specifications are available through the Federal Technical Data Solutions (FedTeDS) system. Bidders must register with FedTeDS on the Internet at www.fedteds.gov. Companies also must register in the government’s Central Contractor Registration system at www.ccr.gov.

For information, contact Darrel L. Johnson, Contracting Division, U.S. Army Corps of Engineers, Little Rock District, 700 W. Capitol Ave., Room 7315, Little Rock, AR 72201-3225; (1) 501-324-5720; E-mail: darrel.l.johnson@us.army.mil.

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