Salina Road over Thunder Bay River
Fair Condition42 years old200 vehicles/day
Location
| State | Michigan |
| County | Alpena |
| Location | 15 Mi W Of Alpena |
| Carries | Salina Road |
| Crosses | Thunder Bay River |
| Coordinates | 45.08267, -83.75751 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 107.9 ft (32.9 m) |
| Max Span | 35.8 ft (10.9 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 312.6 sq m |
| Main Spans | 3 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 200 (2010) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000348 |