I-75 Bl over I-75 NB
Fair Condition66 years old4,350 vehicles/day
Location
| State | Michigan |
| County | Mackinac |
| Location | @ N Jct I-75 Bl |
| Carries | I-75 Bl |
| Crosses | I-75 NB |
| Coordinates | 45.90752, -84.74003 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 245.1 ft (74.7 m) |
| Max Span | 78.4 ft (23.9 m) |
| Deck Width | 36.7 ft (11.2 m) |
| Deck Area | 836.6 sq m |
| Main Spans | 4 |
| Year Built | 1960 (reconstructed 2015) |
Traffic
| Avg Daily Traffic | 4,350 (2015) |
| Truck Traffic | 3% |
| 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 | 000000000005952 |