This research examines the economic impact of the Mackinac Bridge by looking at two spending streams: yearly nonlocal tourism and Mackinac Bridge Authority (MBA) operations. It includes estimates of visitor and MBA spending in Mackinac, Cheboygan, and Emmet Counties as well as statewide. The analysis also examines how the 2024 Mackinac Bridge Walk impacted the local economy through attendee and MBA spending. A survey conducted among bridge users and local businesses gave valuable insights into their perceptions of the bridge, area activity, and events.