Mr. Luddite wrote:

It appears the reports of the collapsed walkway bridge *was*
undergoing stress tests when it fell apart. They were tightening
cables on it to
confirm the stress ratings.

Why they were doing this with busy auto traffic passing under it is
crazy.

New reports also indicate the companies involved have a history of
being fined for violations in the past.

Why would they even be selected for this project?

Stupid.

Lowest bidder, of course. That's our Miami government...