FBI agents boarded a vessel managed by the same company as the cargo ship that caused the collapse of the Francis Scott Key Bridge in March.

The Dali was headed for Norfolk, Va., to have roughly 1,500 cargo containers off-loaded to reduce draft then undergo continued salvage and repairs from damage caused during the bridge collapse.

There aren't many cranes that have a storied history like the Chesapeake 1000 — nicknamed "Chessy" — which has been brought in to clear Baltimore's Francis Scott Key Bridge.

Experts said if the Key Bridge had been fitted with more robust collision-prevention structures, the collapse might have been avoided. Records indicate the protections weren't significantly altered.