EWU Libraries Digital Collections

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  • All fields: Bedrock
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Display: 20

    • Down to Bedrock

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    • 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.
    • 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
    • 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.
    • 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.

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