“””Looks real?”””
It’s real - security camera video.
Seems to originate from where the bridge connects to the bluff area.
Looks real to me, up here in Alaska I have personally delivered numerous loads of concrete to a large bridge north of me spanning the Susitna River near Talkeetna on the Parks Hiway, it amazes me the amount of bounce and shudder it was going through while the construction equipment was on it like the big air compressors, concrete pump truck and of course the continuing roadway traffic. The project was an earthquake improvement job of replacing the footpads under the main supports, this bridge is of a similar design as the MI bridge and nearly identical in age. Of another footnote is that we have recently installed an anti-icing system on another set of bridges over the Knik River and though its said the mixture is non corrosive its a thought to consider if the I35 bridge was using an anti ice mixture that was detrimental to steel like calcium chloride.
Just now looking at the video footage on TV I keep looking at the angle of the footing columns, and it looks apparent that though the stress of the deck falling could have pushed them to one side it looks more like an underground fracture or collapse of the footings.
The video of the bridge collapsing looks very weird. Right after the woman runs past, the bridge seems to appear out of no where and then it immediately collapses. Maybe I’m just seeing it wrong.