U.S. again extends deadline for circuit breakers, transformers at 1,076.6-MW Bonneville Dam

Bonneville Dam

The U.S. Army Corps of Engineers again extended the deadline for bids to replace main unit circuit breakers and instrument transformers at the First Powerhouse of 1,076.6-MW Bonneville Dam in Oregon and Washington. Bids now are due Oct. 16.

The Corps' Portland District previously called for bids for the work on Oct. 13 and Sept. 22. It also had called for bids in September for a potential transformer upgrade at Bonneville's Second Powerhouse.

The Portland District recently awarded a contract to American Babbitt Bearing Inc. to supply hydro turbine guide bearings for Bonneville's First Powerhouse. It awarded a contract last year to Precision Machine and Supply Inc. to repair the turbine of Main Unit 11 in Bonneville's Second Powerhouse. It also awarded a contract to Transformer Services Inc. to refurbish step-up transformers at the Second Powerhouse.

The Corps now has extended the deadline for bids to Oct. 16 for replacement of main unit circuit breakers and instrument transformers at Bonneville's First Powerhouse. The purpose of that work is to improve reliability and operability for the main unit and transfer bus breakers as well as station service equipment.

Work includes removal and replacement of 480-volt switchgear, 13.8-kV switchgear, 13.8-kV disconnect switches, surge equipment, 13.8-kV bussing, 2.4-kV bussing, 13.8-kV/2.4-kV transformer, 13.8-kV/480-volt transformers, 2.4-kV/208-volt/120-volt transformer and other equipment. Valued at $25 million to $100 million, the work is to be performed during limited outages over three years.

A solicitation notice may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering solicitation No. W9127N14R0031 in the "Keyword/Solicitation #" box.

Bids now are due Oct. 16. For information, contact Jeffrey Renner, U.S. Army Corps of Engineers, Portland District, Contracting Division (CECT-NWP), P.O. Box 2946, Portland, OR 97208-2946; (1) 503-808-4630; E-mail: jeff.s.renner@usace.army.mil.

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