In general, verification of any photo or video before it becomes evidence to be relied upon, is a multi prong process.Used to be more simple but in high tech times it has become more complicated..
Yes, we see what we see and it looks bad, but most who are commenting were not eyewitnesses, and even if they were they may not have the best perspective.
.What are we looking at? ..perspective, distances, depths, conditions, time of day, who took it,, their background, equip used, among many items to be examined.
Many including me, will await the investigative results! Til then, I am sure there will be enhanced degree of care on the bridge!