Cranes began arriving Thursday at the scene of the catastrophic bridge collapse over Baltimore harbor, as authorities shifted to a clean-up phase of the recovery and 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 into the Patapsco River -- blocking the entrance to the Port of Baltimore -- after a massive cargo ship Tuesday hurtled into the span.
