Hubert Blonk Papers. SPC-006-0628-5-19-10
Black and white photograph
Scanned at 600 ppi TIFF format, resized to 72 ppi JPEG format.
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.
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Concrete construction; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction.