The Westmix concrete plant showing the concrete placing trestles, upper trestle at elevation 1024, lower trestle at elevation 950. A portion of the aggregate conveyor and the west suspension tower above, bedrock in lower center (at elevation 870) and riprap along the tailrace slope in the right background.; 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: 5225px × 3826px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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