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    • 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.
    • 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.
    • Shift Change

    • Shift Change

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

    • Workers going to work pass those coming off the job on Grand Coulee Dam
    • 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.
    • 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,...
    • Mop Up Work

    • Mop Up Work

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

    • Men using an air siphon to mop up water during the construction of Grand Coulee Dam.
    • The Silos

    • The Silos

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

    • Cement storage silos and unloading platform at Grand Coulee. The cement was pumped from this location to the mixing house at the dam, a distance of over a mile.
    • Mechanical Screed

    • Mechanical Screed

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

    • Mechanical screed built to finish concrete of the bucket section of Grand Coulee Dam.
    • Mechanical Screed

    • Mechanical Screed

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

    • A special mechanical screed was built for finishing the concrete in the bucket section of Grand Coulee Dam.
    • Coffer Dam Construction

    • Coffer Dam Construction

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

    • Work on the coffer dam at the site of Grand Coulee Dam. One crane is on a barge in the river, another is on land.
    • 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.

    • Grand Coulee Dam under construction.
    • 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.
    • Coffer Dam Construction

    • Coffer Dam Construction

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

    • Building the coffer dam at the site 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.
    • Penstock Section

    • Penstock Section

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

    • Moving a section of steel penstock into position during the 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.

    • Photograph of the construction of Grand Coulee Dam.
    • Grand Coulee Dam under construction

    • Grand Coulee Dam under construction

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

    • Employee inspecting piping at Grand Coulee Dam during the process of pouring and curing concrete.
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