PIT tag monitor installers sought for 810-MW Lower Granite fish studies

Lower Granite Dam

The U.S. Army Corps of Engineers seeks information on small businesses able to install a system in a spillway of 810-MW Lower Granite Dam to monitor passive integrated transponder tags in migrating fish. Responses are due Jan. 28.

The Corps' Walla Walla District took bids in December to rehabilitate turbine guide bearings at Lower Granite and the 402-MW Dworshak hydroelectric project.

PIT tags have been used extensively to track fish as they travel past radio receivers in hydroelectric projects on the Columbia River. The Corps awarded a contract in November to Normandeau Associates Inc. to perform fish counting at fish ladders on Lower Granite and other Columbia and Snake river projects.

The Corps now says it does not have a way to collect PIT tag data from fish passing over spillways at Lower Granite. It said studies indicated an average of 65 percent of downstream migrants pass over spillways undetected.

The agency proposes to install a monitoring system in Lower Granite spillway bay No. 1, which functions as the surface passage route at Lower Granite and passes an estimated average of 75 percent of the fish passing over all eight spillway bays.

A contractor is to excavate two trenches across the 50-foot-wide spillway bay and to install antennas. Other work is to be performed including fabrication of a steel support structure with up to 15-ton wire rope hoists. The work is valued at $1 million to $5 million.

The Walla Walla District seeks information on small businesses capable of performing the work to help it determine whether to set aside the work for small businesses.

A sources sought notice may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering Solicitation No. W912EF13RSS12 in the "Keyword/Solicitation #" box.

Responses are due Jan. 28. For information, contact Elaine M. Vandiver, Contract Specialist, U.S. Army Corps of Engineers, Walla Walla District, 201 N. Third Ave., Walla Walla, WA 99362-1876; (1) 509-527-7221; E-mail: elaine.m.vandiver@usace.army.mil.

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