The Straits of Mackinac Shipwreck Preserve are divided in two by a bridge spanning how long?
Straits of Mackinac Shipwreck Preserve The Straits of Mackinac Shipwreck Preserve is a 148 sqmi state preserve in and around the Straits of Mackinac. The preserve is divided in two by the Mackinac Bridge. The waters of the preserve include the waters offshore from Mackinaw City and St. Ignace, as well as all or part of the shorelines of Bois Blanc Island, Mackinac Island, Round Island, and St. Helena Island.
Jennings Randolph Bridge The Jennings Randolph Bridge, built in 1977, is the largest Pratt truss bridge in North America. It spans 754 ft over the Ohio River between Chester, West Virginia and East Liverpool, Ohio. The bridge is located on U.S. Route 30 and is named after U.S. Senator Jennings Randolph (D-WV). It replaced the 1897 Chester Bridge.