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Display: 20

    • Driller

    • Driller

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

    • Drilling for preparation for foundation of Grand Coulee Dam.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • Drilling Crew

    • Drilling Crew

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

    • Using air drills to prepare the bedrock for the foundation of Grand Coulee Dam.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • Going on Shift

    • Going on Shift

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State)

    • Workers with lunches heading to the job site. Trestle and cranes for initial foundation work on Grand Coulee Dam in background.
    • Hubert Blonk
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • The foundation level of concrete had been poured.
    • Hubert Blonk
    • Grand Coulee Dam from Pumping Plant Site

    • Grand Coulee Dam from Pumping Plant Site

    • Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State); Columbia River -- History

    • Framed by a tunnel in the bedrock, the steel trestle and foundation level of Grand Coulee Dam stretch across the Columbia River.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
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