M-29 over Pine River
Fair Condition51 years old9,706 vehicles/day
Location
| State | Michigan |
| County | St. Clair |
| Location | In ST Clair |
| Carries | M-29 |
| Crosses | Pine River |
| Coordinates | 42.82041, -82.48641 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 200.1 ft (61 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 66.6 ft (20.3 m) |
| Deck Area | 1238.3 sq m |
| Main Spans | 1 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 9,706 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000009977 |