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Display: 20

    • Drillers

    • Drillers

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Working with air drills to remove fractured rock from the dam site before pouring the foundation for Grand Coulee Dam.
    • Camp Ferry

    • Camp Ferry

    • Barges; Construction workers -- United States.

    • One of the camps for crews clearing the reservoir area was built on barges.
    • Dam Site and Towns

    • Dam Site and Towns

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Over view of the work area looking southwest.
    • Coffer Dam Construction

    • Coffer Dam Construction

    • 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.
    • McNary Dam

    • McNary Dam

    • McNary Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • McNary Dam construction began in 1947, powerhouse completed in 1957.
    • McNary Dam

    • McNary Dam

    • McNary Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Construction of McNary Dam began in 1947.
    • Grand Coulee Dam Site

    • Grand Coulee Dam Site

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • View looking down river just as construction began.
    • Steel Work

    • Steel Work

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Steelwork.

    • Steel worker assembling reinforcing steel for the Third Powerhouse at Grand Coulee Dam.
    • Steel Work

    • Steel Work

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Steelwork.

    • Assembling reinforcing steel for the Third Powerhouse project at Grand Coulee Dam.
    • Toppling a Tower

    • Toppling a Tower

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Removal of one of the towers used to support the conveyor belt which delivered aggregate to the west side mix plant. The foundation level of Grand Coulee Dam is complete, and the river flows through diversion slots in the dam.
    • Grand Coulee Dam Construction

    • Grand Coulee Dam Construction

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Steel Trestle work under construction. Overburden has been removed exposing bedrock. Coffer dam visible in background.
    • Third Powerhouse Construction

    • Third Powerhouse Construction

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Original Grand Coulee Dam in background, new third powerhouse at right.
    • Foundation Work at Grand Coulee

    • Foundation Work at Grand Coulee

    • Concrete construction; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Portions of the foundation level of Grand Coulee Dam have been poured, others remain to be poured. In the foreground, cooling coils are visible. These were required to maintain the desired temperature for optimum curing of the concrete.
    • Watt, James G. at the Third Power House Dedication

    • Watt, James G. at the Third Power House Dedication

    • 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 James G. Watt speaking at the dedication of the third power house at Grand Coulee Dam.
    • Grand Coulee Dam Site

    • Grand Coulee Dam Site

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Early construction work at the dam site. Removal of overburden was under way. View looking upstream.
    • Four Cubic-yard Buckets

    • Four Cubic-yard Buckets

    • Concrete construction; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Photo of new equipment being assembled at the contractor’s yard at Coulee City. Flat cars with brand new dump buckets for moving concrete.
    • Brett Gravel Pit

    • Brett Gravel Pit

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Concrete construction; Gravel.

    • Aerial view of the Brett gravel pit. This was a source of aggregate for concrete used in the construction of the Grand Coulee Dam. View is looking generally south.
    • Trains Carrying Concrete

    • Trains Carrying Concrete

    • Concrete construction; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.

    • Concrete was carried from the mixing plant to the job site in four cubic yard buckets, which were loaded on flat cars, each carrying four of the buckets at a time. The trains ran out onto temporary trestle work, and cranes picked up the buckets,...
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