The Soo Locks had to be shut down for more than five hours on Sunday after a 736-foot Canadian freighter, Atlantic Huron, lost power as it approached the system’s big Poe Lock, striking the west center pier. The impact damaged the freighter and the pier. No one was injured, and the amount of damage to pier will be better assessed by divers. The main lock system itself was not damaged, and no pollution was seen in the water.