Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.
Preparation for constructing the pumping station to bring water from Lake Roosevelt into the Grand Coulee itself. Boring the tunnels for the pumping plant.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dedication services. Watt, James G., -- 1938-;United States. -- Dept. of the Interior -- Officials and employees.
Secretary Watt signing an autograph at the ceremony dedicating the third power house at Grand Coulee Dam.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Spillways -- Design and construction.
Grand Coulee Dam spillway and power house under construction, looking west.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dedication services. Watt, James G., -- 1938-;United States. -- Dept. of the Interior -- Officials and employees.
Secretary of Interior Watt at the airport on his trip to dedicate the third power house at Grand Coulee Dam.