The MacArthur Lock will be closing on Monday, Dec. 16 as the end of the 2024 shipping season draws closer at the Soo Locks. Seasonal maintenance work will include replacing components that operate ...

SAULT STE. MARIE — The Soo Locks’ MacArthur Lock will close for the Navigation Season on Dec. 16 for seasonal repairs and maintenance. The Poe Lock will remain open until Jan. 15, 2025 ...