They're exaggerating. I figured you were somewhere else. It's a couple hours up the river from me. 90's in Aug is expected. That kind of temp doesn't effect bridges though. Unless they're built badly by not allowing for expansion/contraction from say -60 to +120.
"And if they found all the defects, it was not a contributing factor. But not if they did not.
Obviously the engineers in control did not have a handle on this matter. The bridge collapsed under their analysis and direction for repair work, while people were on it. I have no faith in their ability.
I live 65 miles south of the cities. It has not been hot enough for the heat to be a factor.
There's no kind of existing bridge defect that could be aggravated by a spell of 90F temperatures?
That seems like a bold statement to me.