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Economic and dam related articles

U.S. Seeks HVAC Upgrades for
402-MW Dworshak Hydro Project

by Staff
HydroWorld, February 11, 2015

Dworshak Dam inundated the world's largest steelhead habitat and now, just downstream, sits the world's largest hatchery production of steelhead. The U.S. Army Corps of Engineers seeks bids to upgrade the heating, ventilation and air conditioning system at the 402-MW Dworshak Dam hydroelectric project in Idaho. Bids are due Feb. 20.

The Corps' Walla Walla District requested information in December on firms able to perform winding replacement and cavitation repair of the Unit 3 turbine-generator at Dworshak on the North Fork Clearwater River. It also took bids in 2014 for temperature transmitters and said in 2013 it planned to seek bids for head cover repair of Unit 3's 250-MW Francis turbine.

The Corps now seeks bids to upgrade the industrial HVAC system in Dworshak Dam powerhouse. Work is to include demolition and replacement of some ductwork, upgrading or replacing fans up to 50,000 CFM, air handlers and water coils, replacement of a pneumatic control system with a digital control system, and other work.

Expected to require 220 days, the work is valued at $1 million to $5 million.

A solicitation notice may be obtained from the Federal Business Opportunities Internet site,, by entering Solicitation No. W912EF15R0013 in the "Keyword/Solicitation #" box.

Bids are due Feb. 20. For information, contact Elaine Vandiver, Contract Specialist, U.S. Army Corps of Engineers, Walla Walla District, 201 N. 3rd Ave., Walla Walla, WA 99362-1876; (1) 509-527-7221; E-mail:

U.S. Seeks HVAC Upgrades for 402-MW Dworshak Hydro Project
HydroWorld, February 11, 2015

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