Not really. Apparently the empty truck had just unloaded a load of blacktop. People on the jobsite said they saw the bed going down and the driver take off and then saw the bed going back up. Driver made it about 1/8 of a mile from the job site when the bed hit the overpass. It had gone up about 3 feet.
Was it preventable, sure it was. Was the driver in a rush, probably so, most dump truck drivers are since they get paid by the load and not mileage.
Actually there are quite a few dump truck beds that hit bridges every year in the US. I can think of 6 that I know of.