Structural steel, piping rehab sought by U.S. for 2,078-MW Hoover

The Bureau of Reclamation seeks bids for repair and replacement of structural steel and piping at 2,078-MW Hoover Dam on the Colorado River in Arizona and Nevada. Bids are due Sept. 21.

The agency has been performing modernization work for several years at Hoover. It took bids in July for replacement turbine seal rings at Hoover and the 255-MW Davis and 120-MW Parker dam hydroelectric projects on the Colorado River. (HydroWorld 6/15/10) Andritz Hydro won a contract this year for design and supply of a replacement turbine, with an option to supply three more, at Hoover. (HydroWorld 4/19/10)

Reclamation said Hoover Dam is equipped with multiple steel structures and piping systems that support components that carry liquids and gases such as water, oil, and compressed air to various areas of the power plant and dam. Piping ranges in diameter from 1 to 10 inches with system pressures from 30 pounds per square inch to 2,300 psi. Materials include steel, copper, cast iron, polyvinyl chloride, aluminum, plastic, and others.

Work includes removal and disposal of deteriorated steel and piping, design and installation of new structures and piping, and refurbishment of some existing systems. The government expects to award five-year indefinite-delivery, indefinite-quantity contracts valued at $5 million each.

A solicitation notice may be obtained from the Federal Business Opportunities Internet site,, by entering Solicitation No. R10PS30002 in the “Keyword/Solicitation #” box. Prospective bidders must register at the Central Contractor Registration database,

Bids are due Sept. 21. For information, contact Rita Horkan, Contract Specialist, Bureau of Reclamation – LC – Lower Colorado Regional Office, P.O. Box 61470 Boulder City, NV 89006; (1) 702-2938036; E-mail:

For more hydropower tenders, click here.

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