The 222 meter long, 34752 dwt bulk freighter Algoma Discovery allided with the ship arrestor in a lock at Beauharnois, Quebec on the St. Lawrence River.  The Algoma Discovery was downbound when it hit the arrestor collapsing the frame holding the cables.   Traffic was halted as a heavy crane will be needed to replace the arrestor.  No reports of injuries or pollution released.  Reports state there were strong winds at the time of the allision.