Re: Any comments on Minneapolis Bridge collapse?



Tony Williams wrote:

Richard Henry <pomerado@xxxxxxxxxxx> wrote:

From watching the security camera video, looking at photos of the
aftermath debris, and reading the UofM report on their 2001
inspection, I owuld theorize that one of the south-side approach
sections collapsed, pulling the central steel-arch sections off
its supports (one end was pinned, the other supported on
rollers), followed by slow collapse of the remaining
now-overstressed sections.

Might be worth looking at the train that was passing
at the time. Vibration from it, or maybe it even
clipped something.

Are you serious ?

Graham

.

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