M-55 over Au Gres River
Fair Condition97 years old3,875 vehicles/day
Location
| State | Michigan |
| County | Ogemaw |
| Location | 1.4 Mi W Of Iosco Co Line |
| Carries | M-55 |
| Crosses | Au Gres River |
| Coordinates | 44.27711, -83.90953 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 45.3 ft (13.8 m) |
| Deck Area | 147.7 sq m |
| Main Spans | 1 |
| Year Built | 1929 (reconstructed 1992) |
Traffic
| Avg Daily Traffic | 3,875 (2022) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008416 |