> The solenoid is 3.5 meters across I looked it up and it appears that US rural bridge clearance standards are 4.9m, so that must have been a very low flatbed

> The solenoid is 3.5 meters across I looked it up and it appears that US rural bridge clearance standards are 4.9m, so that must have been a very low flatbed or they found a route across the country that did not have to contend with any bridges. Alternatively, if I was driving the truck I'd want to go real slow toward the first bridge. There was a section on bridge strength, too, but (a) I don't know what "MS 18" implies, and (b) I don't know how much a truck and a ginormous magnet weigh for comparison: https://en.wikipedia.org/wiki/Interstate_Highway_standards https://en.wikipedia.org/wiki/Interstate_Highway_standards