There are two large finger joints at the towers to accommodate all the expansion of the suspended spans. There are 11 smaller finger joints and 5 sliding joints across the Mackinac Bridge. In addition, there are 13 expansion joints for the south viaduct spans – one for each of these simple spans. This adds up to a total of 31 total joints.
- December Traffic Report
- November Traffic Report
- Piece of Mackinac Bridge now resides at South Pole
- October Traffic Report
- Mackinac Bridge 30-minute nighttime closures Nov. 29-30 for backup power system upgrade