The are over 42,000 miles of wires in the main cable. The bridge is fascinating to many including those who have been married on it and on top of the towers. There have been babies born on the bridge and dogs, deer and even skunk have been found on it. There were more obstacles to overcome and problems solved in designing and building the Mackinac Bridge than in any comparable project. 33 marine foundations support the 4 mile long uninterrupted steel superstructure.
All piers rest on bedrock.
The two huge tower foundations penetrate more than 200 feet below water - and were built out on the water with boats, barges and ships handling the men, machinery and materials. On that eventful day Michigan's upper and lower peninsulas were permanently tied together. As part of our Michigan tradition, an annual bridge walk is held during Labor Day weekend, attracting tens of thousands to participate with the Governor in celebrating this accomplishment.