A year after the collapse of the Francis Scott Key Bridge in Maryland, federal safety officials are urging bridge owners to conduct risk assessments to prevent another tragedy.

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.

NTSB report puts the structural integrity of the Golden Gate Bridge and other Bay Area bridges at risk of collapse from vessel strikes.