Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Cofferdams--Washington (State)--Grand Coulee Dam;Cranes, derricks, etc.--Washington (State)--Grand Coulee Dam
Construction at Grand Coulee Dam, showing several aspects of work. Drillers with air drills working to get down to un-fractured bedrock, coffer dam construction, and the overhead conveyor belt transporting aggregate to the concrete mixing plants.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dedication services;
Unidentified dignitary addressing the audience at the dedication of the Third Power Plant. Representative Thomas Foley sitting behind the speaker. Secretary of Interior James Watt and Washington Governor John Spellman are seated at far right.