An initial investigation shows the 1, 111-foot-long bridge collapsed when a tractor-trailer hauling an oversized load hit one of the bridge's overhead tresses, according to Deborah Hersman, chairwoman of the National Transportation Safety Board, which is investigating the incident.
The entire film is thought to be around an hour long, although most have only seen a 14-minute trailer which has now been widely circulated on the internet in English and Arabic.
Uovo's indoor loading bay, for example, is designed to accommodate a wide-load tractor-trailer, and artworks as large as 40 feet long can be carried straight off the truck into a large-scale storage space.