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  • 21 Aug, 2019

  • By, Wikipedia

File:Grand Coulee Dam Construction.jpg
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Captions

In order to divert the Columbia River water and expose the river bed, engineers had to freeze the underlying river bottom in order to support the heavy equipment and concrete forms necessary to construct and place the dam's superstructure.

Items portrayed in this file

depicts

inception

8 March 1938

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Date/TimeThumbnailDimensionsUserComment
current19:04, 25 November 2004Thumbnail for version as of 19:04, 25 November 2004778 × 600 (118 KB)DukGrand Coulee Dam, construction
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