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The bridge opened on November 1, 1957, [10] connecting two peninsulas linked for decades by ferries. At the time, the bridge was formally dedicated as the "world's longest suspension bridge between anchorages", allowing a superlative comparison to the Golden Gate Bridge, which has a longer center span between towers, and the San Francisco–Oakland Bay Bridge, which has an anchorage in the middle.
The Mackinac Bridge Authority reported a partial bridge closure amid high winds Tuesday evening, with vehicle types and speed limited.
The Mackinac Bridge has a speed limit of 45 mph (72 km/h) for passenger vehicles and 20 mph (32 km/h) for trucks, but can be as low as 20 mph (32 km/h) during high winds. [83] The Michigan Department of Transportation and the Michigan State Police may raise the speed limit to 75 mph (121 km/h) after it is deemed safe to do so. [84]
In 2024, M-185 was the last state highway in Michigan to receive a speed limit. Legislation signed by Governor Gretchen Whitmer set a limit of 15 miles per hour (24 km/h) along the highway, noting that some e-bikes could reach speeds of 28 miles per hour (45 km/h). [44]
A new survey ranks Michigan's Mighty Mac among the nation's top 10 most scenic bridges. The Mackinac Bridge ranked seventh nationwide, falling within the top 10 of a 100-bridge ranking.
This article originally appeared on Detroit Free Press: Mackinac Bridge repairs expected to slow traffic for 2 months. Show comments. Advertisement. Advertisement. In Other News. Entertainment.
In May 2017, MDOT raised the speed limit on I-75 between Bay City and Sault Ste. Marie, excluding the Mackinac Bridge, from 70 to 75 miles per hour (113 to 121 km/h). [ 115 ] A segment of I-75 in Oakland County between 12 Mile Road in Madison Heights and South Boulevard in Bloomfield Township had high-occupancy vehicle lanes (HOV lanes) added ...
The Mackinac Bridge will close to traffic between 2:30-3 a.m. on Tuesday, Nov. 29 and Wednesday, Nov. 30 for replacement of the bridge’s backup power system.