Business Spur I-75 - Sault Ste. Marie

Business Spur I-75 angles northeast from Exit 392 along a commercial arterial to Ashmun Street in Sault Ste. Marie. Ashmun Street comprises the main north-south street through the city. It doubles as Business Spur I-75 to Portage Avenue in Downtown. Portage Avenue parallels the St. Marys River southeast to the Sugar Island Ferry Dock, where the 5.90 mile route (Bessert, 2026) of the business spur ends.