Corps to seek spillway rock removal at 1,076.6-MW Bonneville

PORTLAND, Ore., U.S. 1/18/12 (PennWell) — The U.S. Army Corps of Engineers plans to take bids for emergency removal of rock debris from the stilling basin of 1,076.6-MW Bonneville Dam, on the Columbia River in Oregon. Bids are expected to be due Jan. 31.

The Corps’ Portland District said a solicitation package is expected to be available Jan. 20. A site visit is scheduled Jan. 24. The agency said the work is considered unusual and of compelling urgency with a shortened solicitation period.

The Corps named Knight Construction & Supply Inc. in November to rehabilitate an intake gantry crane at the 558-MW Second Powerhouse at Bonneville. (HydroWorld 11/2/11)

The Corps now plans to seek removal of rock debris that has been depositing in the stilling basin, between the flow deflectors and the baffle blocks. Work is to involve removal, by barge-mounted mechanical means and by divers, of 550 cubic yards of rock, of from 3 inches to 5 feet in diameter, from 30 to 40 feet of water in each spillway bay.

Valued at between $1 million and $5 million, the work is to be performed between Feb. 10 and April 1.

A pre-solicitation notice may be obtained from the Federal Business Opportunities Internet site,, by entering solicitation No. W9127N12R0011 in the “Keyword/Solicitation #” box. Due to a shortened solicitation period, an Internet bidder inquiry has been established at

A site visit is scheduled for 10 a.m. Jan. 24. Participants are required to register by e-mail to the address below. Bids are expected to be due Jan. 31.

For information, contact Robert Fuchs, U.S. Army Corps of Engineers, Portland District, Contracting Division (CECT-NWP), P.O. Box 2946, Portland, OR 97208-2946; (1) 503-808-4624; E-mail:; Internet:

Previous articleAlstom, SSE Renewables join forces for 200-MW wave farm in Scotland
Next articleUganda seeks switchyard upgrade for 255-MW Bujagali

No posts to display