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Display: 20

    • Coffer Dam Construction

    • Coffer Dam Construction

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

    • Coffer dam construction at Grand Coulee Dam.
    • 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,...
    • 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.
    • Forms

    • Forms

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

    • Construction of forms for pouring the first blocks of the foundation of the dam.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Construction of Grand Coulee Dam.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Construction of Grand Coulee Dam.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Construction of Grand Coulee Dam.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Construction of Grand Coulee Dam.
    • 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.
    • Pumping Plant Construction

    • Pumping Plant Construction

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

    • Construction of the pumping plant at Grand Coulee Dam under way, with dam in center background, and construction towns in distance.
    • Building the Contractor’s Railroad

    • Building the Contractor’s Railroad

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Scrapers (Earthmoving machinery) ; Horse-drawn vehicles -- History

    • Construction of the temporary railroad from Coulee City to the dam site utilized methods common a half century earlier when the Northern Pacific built its branch to Coulee City. Horse drawn fresno scrapers are being used to grade the roadbed.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Construction site at Grand Coulee Dam.
    • Drilling Crew

    • Drilling Crew

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

    • Crew working with air drills working their way to solid bedrock for the foundation of Grand Coulee Dam.
    • Down to Bedrock

    • Down to Bedrock

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

    • Crews working to prepare the southern end of the dam site by removing soil and loose rock.
    • Before the Dam

    • Before the Dam

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

    • Dam site before the start of construction of Grand Coulee Dam.
    • Watt, James G. at Third Power Plant Dedication

    • Watt, James G. at Third Power Plant Dedication

    • Grand Coulee Dam (Wash.) ;Watt, James G., -- 1938-;United States. -- Dept. of the Interior -- Officials and employees.;Hydroelectric power plants -- Washington (State);Dedication services.

    • Dedication of third power house at Grand Coulee Dam. Honored guests included Secretary of Interior James G. Watt seated at center right, behind and to the left of the speaker at the rostrum.
    • Tower Removal

    • Tower Removal

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

    • Demolition of a tower which carried the conveyor belt for aggregate across the Columbia River below the Grand Coulee Dam site.
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