Deep hole in block 40-A. Note the small amount of seepage water with the pump sump located about 100 feet from the cofferdam and 113 feet below the surface of the river.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of the Grand Coulee Dam and related work on the Columbia Basin Project.

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Size: 4233px × 5906px
Photo credit: © Tango Images / Alamy / Afripics
License: Licensed
Model Released: No

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