It looks from this photo reportedly taken a few weeks ago that this bridge should have been closed. Certainly I wouldn't feel comfortable driving over a bridge which looked like this.
Wow. That is in terrible condition.
Note also that it has a drop in centre panel. Very similar to the bridge that collapsed in Quebec maybe 10 years ago. The Engineers on that one got needlessly artsie in their designs and in fact, followed a European style design (note in that photo above how the substructure is designed needlessly complicated in a V shape. Fuck that. Keep it simple, just a nice straight block of concrete in the vertical orientation rather than introducing all kinds of whacked out loading.)
The above photo shows how the bridge that collapsed in Quebec in 2006 was constructed with a drop in centre panel. The centre panel is supported entirely on a ledge of sorts. In the case of the bridge in Quebec, the ledge failed and down went the bridge. There is only 1 path for the load to be supported. (The ledge) If it fails, down goes the bridge. (Contrast to the Gardiner Expressway (say) which has multiple load paths and redundancy.)
Hard to say if Genoa is the same problem. But the design appears to be the same.
A simplification of the bridge in Quebec that collapsed in 2006. Note the substructure design and the drop in panel. If there was a conventional pier under that joint, it never would have happened because the entire pier would have had to collapse and there is incredible redundancy. Again, using the Gardiner as an example, you could cut one of the girders in half with a flame torch and the deck would still stand. You could saw cut the pier cap in half, the deck would still stand. You could even blow out one of the columns and the bridge would list over, but not collapse. The Gardiner, as designed, is super strong. (The deterioration that you see is not currently the end of the world as the bridge is giving you lots of warning that it needs to be repaired.)
The designers of the bridge in Quebec got needlessly creative. The designers of the bridge in Genoa also got needlessly creative. Keep it simple stupid. Sure, put on lots of nice details. I'm all for super fancy stone veneers, wrought iron railings, art work in lighting, artistic reliefs, even statues, etc. But structure? No way. Keep it simple.