Bridge built 1972-1977.
A hit to that one area took out the entire bridge.
https://www.express.co.uk/news/us/1881643/baltimore-francis-scott-key-bridge-collapse-video
Per the above, 20 construction workers, three civilian cars believed to be on bridge unaccounted for.
“A hit to that one area took out the entire bridge.”
The ship hit one of the main supports. How could that happen by accident? You might mistake the height of the bridge and hit the span as you try to go under, but how do you hit a vertical support by accident?