A deadly bridge collapse in Italy is raising new concerns about the safety of bridges in the United States. The highway bridge located in Italy’s port city of Genoa was 51-years old when it collapsed on Tuesday, killing 39 people.

Bridge Collapse in Italy Shines Light on CA’s Aging Bridges

NBC Bay Area’s Investigative Unit reviewed the Department of Transportation’s 2017 National Bridge Inventory and found there are 13,721 bridges in California 50 years old or older — 1,960 of