Play it and watch carefully and looks for white explosions:
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top side of the structure in the center of the bridge - you can see it after is starts going down,
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top side of the structure on the left,
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the main bar that was hit by the vessel - the part below the road level, on the same height as the top side of the vessel
In 1 and 2 you can see white smoke going down following the place where the explosion was.
Number 1 is where the “key stone” would usually be on the arch.
Number 2 is where the left part breaks later.
Number 3 is where and when the main pillar starts to fall.
EDIT: On this video below you can watch the left part zoomed out - there are 2 explosions there and the smoke is easier to notice: https://greatawakening.win/p/17siNus3gG/moment-of-collision-and-collapse/c/
It could also be the lights of the industrial sites in the background being exposed, the camera "blooms" a bit to the new light source and makes it look like small charges. Now, if the 6 missing workers are never found, that could change things.
That water is filled with debris and bottom feeders. When the Water Taxi capsized in the Inner Harbor years ago, my boyfriend at the time was on the search and rescue. The trolling cameras saw what the crabs were doing to the bodies. I don’t expect them to be found after 24hrs.
Divers, robots, families, floaters - something should turn up. Unless they are trapped under a piece of roadway. Remains to be seen.
I mentioned filled with debris, not just the bridge structure but Baltimore’s harbor is filled with shit it a working port. The water is 50ft deep, around 40* right now. They send cameras down first to find bodies and see the state they’re in for recovery. I’m telling you, I witnessed how this exact city did a rescue response. The water was the same depth, no collapsed bridge on top and the pontoon flipped so all the passengers were close together, they didn’t plunge 185ft. It was still hell. My guy was on the trolling camera. He saw the crabs and bottom feeders did to those people.
Odd enough the water taxi flipped March 6, 2004. Almost exactly 20 years ago.