Windy day on the Straits of Mackinac
Mackinac Bridge photos September 7, 2007

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Huge waves striking th Mackinac Bridge

Mackinac Bridge from the Old Mackinac Point Lighthouse in Mackinaw City

Mackinac Bridge

Building the Mackinac Bridge Building the Bridge

Mackinac Bridge 50th Anniversay parade and fireworks 50th Anniversary of opening the bridge

Satellite Pictures

These are some of the largest waves that I have seen on the Straits of Mackinac. It was windy enough that
the power was out in Mackinaw City when these photos of the Mackinac Bridge were taken.

waves and the Mackinac Bridge
The Mackinac Bridge is built to withstand winds up to 120 MPG. On October 26, 2010 a wind gust was measured at 78 miles per hour.  

Suspension bridges are designed to move to due to wind, temperature change and the weight on the bridge.
The roadway of the Mackinac Bridge center span can slowly move as much as 35 feet east or west in high winds

On rare, extremely windy days, vehicles may be prohibited from crossing the Mackinac Bridge for a period of time. If the
wind speed averages 65 MPH or more, the bridge will be shut down. It if reaches 50 MPH high profile vehicles will be
prohibited. At slightly lower wind speeds, high profile vehicles may be required to have an escort. The
Mackinac Bridge Authority is constantly monitoring the weather and has wind gages as far away as White Shoal Light.



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copyright 1997-2011 by Keith Stokes. These Mackinac Bridge photos may not be reproduced without written permission. My home page