M-46 over Pine River
Fair Condition96 years old9,548 vehicles/day
Location
| State | Michigan |
| County | Gratiot |
| Location | In ST Louis |
| Carries | M-46 |
| Crosses | Pine River |
| Coordinates | 43.40783, -84.61874 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 89.9 ft (27.4 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 36.4 ft (11.1 m) |
| Deck Area | 304.1 sq m |
| Main Spans | 2 |
| Year Built | 1930 (reconstructed 1984) |
Traffic
| Avg Daily Traffic | 9,548 (2007) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000003112 |