Photo: George Frey/Getty Images
Rather than put the Sam White Bridge together at its designated position—spanning a portion of Interstate 15 in American Fork, Utah—which would have disrupted traffic for months, its planners decided to build the 108-meter-long conduit off-site. Here, the 1814-metric-ton bridge is moved into place by what looks to be the largest dolly ever.











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Willie Jones
Willie Jones is an associate editor at IEEE Spectrum. In addition to editing and planning daily coverage, he manages several of Spectrum's newsletters and contributes regularly to the monthly Big Picture section that appears in the print edition.
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