What caused the Surfside collapse?

This seems not great, Bob:

Three years before the deadly collapse of the Champlain Towers South condominium complex near Miami, a consultant found alarming evidence of “major structural damage” to the concrete slab below the pool deck and “abundant” cracking and crumbling of the columns, beams and walls of the parking garage under the 13-story building.

The engineer’s report helped shape plans for a multimillion-dollar repair project that was set to get underway soon — more than two and a half years after the building managers were warned — but the building suffered a catastrophic collapse in the middle of the night on Thursday, crushing sleeping residents in a massive heap of debris.

The complex’s management association had disclosed some of the problems in the wake of the collapse, but it was not until city officials released the 2018 report late Friday that the full nature of the concrete and rebar damage — most of it probably caused by persistent water leaks and years of exposure to the corrosive salt air along the South Florida coast — became chillingly apparent.

At least we can trust Florida Republicans to have a grossly inadequate regulatory response.

…since a commenter referred to it, worth noting that this is both interesting and harrowing reading.