I thought this was a helpful video as well: https://www.youtube.com/watch?v=jOe7CvVGqz4 https://www.youtube.com/watch?v=jOe7CvVGqz4 It's a slow motion photogra

I thought this was a helpful video as well: https://www.youtube.com/watch?v=jOe7CvVGqz4 https://www.youtube.com/watch?v=jOe7CvVGqz4 It's a slow motion photogrammetry of the dashcam video of the collapse showing the bridge clearly failing first at the left side. At least one of the two is probably coincidence, but the point of failure on the lower deck seems to be at the same location that the transporter truck was modified to use, and on the upper canopy at the location where they were doing the tensioning. It's a nice accompaniment for the eng-tips thread linked from the article: http://www.eng-tips.com/viewthread.cfm?qid=437029 http://www.eng-tips.com/viewthread.cfm?qid=437029