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Display: 20

    • 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.
    • Hubert Blonk
    • Spray Nozzles

    • Spray Nozzles

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

    • Spray nozzles for use curing concrete in Grand Coulee Dam.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • Reinforcing Steel

    • Reinforcing Steel

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

    • Steel reinforcing bar (rebar) in the training wall at Grand Coulee Dam.
    • Hubert Blonk
    • Bulldozer

    • Bulldozer

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

    • Tractor specially equipped to clean trucks used for overburden removal at Grand Coulee Dam.
    • Hubert Blonk
    • Conveyer Tower

    • Conveyer Tower

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

    • A conveyer belt was carried on a suspension bridge over the Columbia River at a height approximately 35 feet higher than the finished dam.
    • Hubert Blonk
    • 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.
    • 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
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • Penstock Construction

    • Penstock Construction

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

    • Placement of steel penstock sections during the construction of Grand Coulee Dam.
    • Hubert Blonk
    • Penstock Sections

    • Penstock Sections

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

    • Sections of steel penstock staged at the contractor’s storage yard in Grand Coulee
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
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