I saw a sign that warned 13 feet 3 inches ( almost exactly 4 meters), and generally they are measured from the lowest point of the bridge. Yet somehow the truck driver missed those signs and clipped the bridge, making a very big mess.
Had the truck driver been paying attention, he could have done half a lane to go under the highest part of the bridge arch or took a different route. I guess he was probably too busy watching his cell phone to notice that. Trailer's completely destroyed.
EDIT wrong link copied