I-275 NB over Tonquish CR
Good Condition54 years old63,759 vehicles/day
Location
| State | Michigan |
| County | Wayne |
| Location | 3.5 Mi SE Of Plymouth |
| Carries | I-275 NB |
| Crosses | Tonquish CR |
| Coordinates | 42.33497, -83.44311 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 31.5 ft (9.6 m) |
| Deck Width | 55.8 ft (17 m) |
| Deck Area | 181.9 sq m |
| Main Spans | 1 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 63,759 (2007) |
| Truck Traffic | 7% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000011957 |