A ship carrying a giant crane was en route Thursday to the scene of the catastrophic bridge collapse over Baltimore harbor, as authorities warned of extensive work before the major US port can reopen.
The machinery will be deployed in a tricky operation to clear the twisted steel remnants of the Francis Scott Key Bridge from where it fell 185 feet (56 meters) into the Patapsco River -- blocking the entrance to the Port of Baltimore -- after being struck by a massive cargo ship early Tuesday.
