Everyone in America was planning for the solar eclipse on August 21, except, apparently, the Montana Department of Transportation. That day, a contractor hired by MDT had scheduled a fairly major road construction project to begin on Interstate 15 near the Clark Canyon Dam. As tens of thousands of people headed north from the path of the eclipse to get home Monday around 4:30 p.m., they encountered a miles-long traffic jam that slowed traffic to a bumper-to-bumper crawl for more than an hour for some drivers. The flow of traffic was not a problem on the northbound lane of I-15...