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  • All fields: Excavation
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    • Pumping Station Excavation

    • Pumping Station Excavation

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

    • Excavation for pumping station to pump water from Lake Roosevelt into the Grand Coulee.
    • Hubert Blonk
    • Grand Coulee Dam Construction

    • Grand Coulee Dam Construction

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

    • Excavation of soil and loose rock, and work on the coffer dam were under way on the east end of the dam.
    • Hubert Blonk
    • Pumping Station Excavation

    • Pumping Station Excavation

    • 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.
    • Hubert Blonk
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