Mackinac Bridge Authority

Spanning the Straits of Mackinac since 1957

What other weather results in warnings or closures of the bridge?

Posted on February 14th, 2023

We do issue warnings when the bridge deck is icy, which is particularly noteworthy because we do not apply salt due to concerns about corrosion of the bridge’s steel components. Though rare, we have closed the bridge for whiteout conditions, freezing rain events coupled with high winds, and, of course, falling ice events (see our FAQs about falling ice). It’s not a weather event but there’s also a little event each Labor Day, the Annual Bridge Walk, which results in a morning bridge closure to traffic.

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