Mackinac Trail over I-75 NB
Fair Condition63 years old1,000 vehicles/day
Location
| State | Michigan |
| County | Chippewa |
| Location | 2.9 Mi S Of M-28 |
| Carries | Mackinac Trail |
| Crosses | I-75 NB |
| Coordinates | 46.33619, -84.42799 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 351.7 ft (107.2 m) |
| Max Span | 99.7 ft (30.4 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 1,072 sq m |
| Main Spans | 4 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 1,000 (2007) |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001579 |