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  • All fields: concrete
(19 results)



Display: 20

    • 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
    • Brett Gravel Pit

    • Brett Gravel Pit

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

    • Aerial view of the Brett gravel pit. This was a source of aggregate for concrete used in the construction of the Grand Coulee Dam. View is looking generally south.
    • Hubert Blonk
    • 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
    • Trains Carrying Concrete

    • Trains Carrying Concrete

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

    • Concrete was carried from the mixing plant to the job site in four cubic yard buckets, which were loaded on flat cars, each carrying four of the buckets at a time. The trains ran out onto temporary trestle work, and cranes picked up the buckets,...
    • 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 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
    • Brett Gravel Pit Operations

    • Brett Gravel Pit Operations

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

    • Gravel quarry for Grand Coulee Dam project. The gravel was moved from the quarry to the concrete plant by conveyer belt.
    • Hubert Blonk
    • Marsh, L. G.

    • Marsh, L. G.

    • Construction workers -- United States; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State)

    • L. G. Marsh was the Progress Engineer for MWAK. He kept a record of dirt and rock excavated; steel placed; and concrete poured during the project.
    • 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
    • Four Cubic-yard Buckets

    • Four Cubic-yard Buckets

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

    • Photo of new equipment being assembled at the contractor’s yard at Coulee City. Flat cars with brand new dump buckets for moving concrete.
    • 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
    • “A Cut Down Version”

    • “A Cut Down Version”

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

    • Small version of the concrete buckets used during the construction of Grand Coulee Dam. The ones used on Grand Coulee Dam were larger, with a four cubic-yard capacity.
    • 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
    • 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 Construction

    • Grand Coulee Dam Construction

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

    • The initial level of concrete has been poured across the entire distance of the bottom of the dam. The Columbia is flowing over the central portion of the dam.
    • Hubert Blonk
    • 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.
    • Hubert Blonk
    • Grand Coulee Dam Construction

    • Grand Coulee Dam Construction

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

    • Two workmen appear to be pressure washing the top of a pour of concrete.
    • 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.

    • Work on the base of the dam at its western end, showing steel trestles for travelling cranes, and western concrete mixing plant.
    • Hubert Blonk
    • “Men Of Steel”

    • “Men Of Steel”

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

    • Workers assembling steel rebar (reinforcing bar) for a concrete pier.
    • Hubert Blonk
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