Mackinaw RD over I-75
Fair Condition59 years old2,598 vehicles/day
Location
| State | Michigan |
| County | Bay |
| Location | 6.5 Mi NW Of Bay City |
| Carries | Mackinaw RD |
| Crosses | I-75 |
| Coordinates | 43.65138, -83.98995 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 253.0 ft (77.1 m) |
| Max Span | 90.6 ft (27.6 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 763.3 sq m |
| Main Spans | 4 |
| Year Built | 1967 (reconstructed 2019) |
Traffic
| Avg Daily Traffic | 2,598 (2016) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000633 |