"Autostrade, which handles media queries on behalf of the subcontractor, Spea Engineering, declined to comment."
https://www.cbsnews.com/news/italy-bridge-collapse-genoa-atl...
https://en.wikipedia.org/wiki/Atlantia_(company)
The technical specifics of the bridge collapse are interesting, but the privatization of multiple road systems should have in theory let the company be cognizant of the systemic issues of the design practices of various eras, but how was this missed? The company was managing the bridge since 1999, almost twenty years now. This is as much or more of an organizational question as well as a private vs public ownership question as it is a technical one.