Second Avenue over Thunder Bay River
Fair Condition87 years old15,700 vehicles/day
Location
| State | Michigan |
| County | Alpena |
| Location | 0.2 Mi E Of Us23 |
| Carries | Second Avenue |
| Crosses | Thunder Bay River |
| Coordinates | 45.06390, -83.43060 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 264.4 ft (80.6 m) |
| Max Span | 127.0 ft (38.7 m) |
| Deck Width | 62.0 ft (18.9 m) |
| Deck Area | 1523.3 sq m |
| Main Spans | 1 |
| Year Built | 1939 (reconstructed 1988) |
Traffic
| Avg Daily Traffic | 15,700 (2016) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000000357 |