Annex to life science facility completed at Dugway Proving Ground
A worker stands amid a burst of sparks as he cuts steel wall posts July 2014. The U.S. Army Corps of Engineers Sacramento District’s contractor, Big D Construction of Salt Lake City, is the prime contractor to construct the annex to the life sciences test facility at Dugway Proving Ground, Utah. (Cropped for emphasis)

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Photo by: Photo by Al Vogel of Dugway Proving Ground. Utah. |  VIRIN: 140710-A-BB276-066.JPG