File:Grand Coulee Dam construction.jpg

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Grand_Coulee_Dam_construction.jpg ‎(778 × 600 pixels, file size: 118 KB, MIME type: image/jpeg)

Captions

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.

Summary[edit]

Description
English: Construction of the Grand Coulee Dam.
Date
Source http://www.bpa.gov/Power/pl/columbia/gallery/gc-b-3.jpg
Author U.S. Bureau of Reclamation
Permission
(Reusing this file)
Public domain This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag.

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

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