Hubert Blonk Papers. SPC-006-0628-5-9-5
Black and white photograph
Scanned at 600 ppi TIFF format, resized to 72 ppi JPEG format.
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.
Archives & Special Collections, Eastern Washington University Libraries.
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Grand Coulee Dam (Wash.); Hydroelectric power plants -- Washington (State); Dams -- United States -- Design and construction