I 35w bridge collapse animation

is the time of the parts of the bridge falling(failing) accurate? I heard that the whole bridge fell in 4 seconds,I have looked at a lot of videos, but there is a ton of ignorant juvenile postings. I wonder why.

Any civil or structual engineers or students want to commnet on this video? A large span falls down straight dragging other parts, and then independently(?) an other part falls jackknifing a section.
How more people were not killed is a miracle, unless this info has been suppressed. How many cars were involved? To me it looks like an earthquake, or like the Tacoma bridge which swayed to its destruction.

crap not working :(

Xlnt. 'theoritical'-animation of Bridge-collapse, --however, may have nothing to do with reality, as to hopefully revealed by subsequent Engineering-examination of failed truss-elements! First must look at two primary/Support-columns, --then work their way upward from the base of these columns, and fore/aft from there as to determine if the cause was just defective maintenance, or a jew-Zionist acoustical-weapon (from nearby University/science-Lab.?); ultimately, someone(s) culpable...

thank you for being time efficient.