Sixty-eight bridges across the US should be assessed to see if they are at risk of collapse if hit by a ship, transportation safety officials found, while urging the bridges’ owners to undertake immediate vulnerability assessments.

The Brooklyn Bridge and the Golden Gate are among those that need assessments of their vulnerability to a strike by a large ship like the one that hit the Key Bridge.

The safety board issued recommendations as part of its ongoing investigation into the collapse of Baltimore’s Key Bridge last year after it was hit by a ship.