The recommendations come as part of an ongoing investigation of the collapse of the Francis Scott Key Bridge in Baltimore last year.

A new NTSB report compiled after the Francis Scott Key Bridge collapse in Baltimore shows that San Francisco's Golden Gate Bridge and four other Bay Area spans may be vulnerable to collapse from a ship strike.

A new report released this week about last year’s deadly collapse of the Key Bridge in Baltimore — after it was struck by a container ship — has also raised questions about dozens of other bridges across the country,