UPDATE – U.S. extends spill wall bid date for 1,779.8-MW Dalles

The Corps of Engineers extended its due date for bids to build a spill wall in a stilling basin at 1,779.8-MW The Dalles Dam, on the Columbia River in Washington. The new date is June 24.

Proposals originally were due June 9. (HNN 5/9/08)

A site visit is scheduled for 10 a.m. June 10. Parties interested in visiting the site must submit the name of the person attending, company name, address, and telephone number, as a bidder inquiry through the PROJect extranet (ProjNet) web service, www.projnet.net, by noon June 6.

The Corps’ Portland District said work would involve construction of a spill wall to aid fish passage in the stilling basin below the dam between Bays 8 and 9. The wall is to be built of pre-cast and cast-in-place concrete, ten feet wide, about 830 feet long, and 25 to 43 feet tall.

Work will involve fabrication, transportation, and setting of large pre-cast concrete cells, concrete demolition, anchor installation, and grouting, rock removal, underwater and above-water concrete placement, rock drilling, and installation, grouting, and tensioning of rock tendons.

The Corps estimates the job will cost between $25 million and $100 million. It tentatively plans to award the contract in July.

Spill to pass juvenile fish downstream will take place between two in-water work periods. The Corps expects construction will extend over two seasons. All work must be completed by March 20, 2010.

The solicitation is available on the Federal Business Opportunities Internet site www.fbo.gov. Enter the solicitation number, W9127N08R0024, in the �Quick Search� box to find the solicitation and associated documents.

For information, contact Kenneth Piper, U.S. Army Corps of Engineers, Portland District, Contracting Division (CENWP-CT), P.O. Box 2946, Portland, OR 97208-2946; (1) 503-808-4619; E-mail: kenneth.g.piper@usace.army.mil.

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