Public Affairs Specialist
The MacArthur Lock in Sault Ste. Marie, Michigan prepares to close for critical maintenance. The 800-foot-long MacArthur Lock, built in 1943, is 79 years old; the maintenance period is critical to keeping the lock in operation during the shipping season.

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Photo by: Carrie Fox |  VIRIN: 211215-A-WR196-1008.JPG