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Display: 20

    • 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.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • Water flowing over spillway of dam.
    • Hard Hat

    • Hard Hat

    • Dams -- United States -- Design and construction; Construction workers -- United States.

    • Hard hat worn by construction workers on Grand Coulee Dam. Early version of hard hat was plastic resin impregnated fabric. This one was worn by project engineer Frank Banks.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • View of dam with third power house under construction.
    • Pouring Concrete

    • Pouring Concrete

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

    • Three men empty a four cubic yard bucket of concrete during the construction of Grand Coulee Dam.
    • Construction Towns

    • Construction Towns

    • Mason City (Wash.) [town]

    • The “Government Town” in the foreground, and the “Contractor’s Town” across the river, in the background. Mason City, the contractor’s town, was named for Silas B. Mason.
    • Watt, James G. at the Third Power House Dedication

    • Watt, James G. at the Third Power House Dedication

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

    • Secretary of Interior James G. Watt touring the third power house at Grand Coulee Dam.
    • Kettle Falls

    • Kettle Falls

    • Kettle Falls (Wash.) -- History.

    • Kettle Falls, before the construction of Grand Coulee Dam raised the river level and flooded it.
    • Grand Coulee Dam Construction

    • Grand Coulee Dam Construction

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

    • Shows construction method for the lower portion of the dam. Alternating blocks were constructed. The Columbia River was forced through slots by placement of temporary gates on the upstream side of the dam.
    • 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.
    • Grand Coulee Dam

    • Grand Coulee Dam

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

    • View looking west across the reservoir side of the dam. The spillway drum gates are not installed, and the roadway across the top of the dam has not been built yet.
    • Watt, James G. at the Third Power Plant Dedication

    • Watt, James G. at the Third Power Plant Dedication

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

    • Secretary Watt visiting with dignitaries following the ceremony dedicating the third power house at Grand Coulee Dam.
    • Temporary Gate for Grand Coulee Dam

    • Temporary Gate for Grand Coulee Dam

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

    • A temporary floodgate used to close off a slot in the dam is being barged into position.
    • 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.
    • Watt, James G. at the Third Power Plant Dedication

    • Watt, James G. at the Third Power Plant Dedication

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

    • Secretary Watt at Grand Coulee Dam following the dedication of the third power house.
    • Grand Coulee Dam Site

    • Grand Coulee Dam Site

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

    • Early work under way on both banks of the Columbia.
    • Grand Coulee Dam Construction

    • Grand Coulee Dam Construction

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

    • The Columbia River flowed through slots in the dam, as other sections were poured.
    • 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.
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