How do they happen to have video of it? If it was hit by a large container ship, why was it not immediately closed to traffic until an inspection could be made?
There is a webcam trained on it like a lot of bridges and other points of interest around the world. Scenic spots and points of interest frequently have them.
I used this drawbridge in Northern Michigan as my “Window” on a extra computer last summer. (I work in my basement and don’t have a window, so I found something to act as one)
https://www.youtube.com/watch?v=yWIHgMW2yVQ
So if a lowly drawbridge in Michigan has a cam, a large Bridge in Baltimore will. Video of the accident is actually to be expected these days.