Derby ST over Grand Trunk Western Rr
Poor Condition96 years old1,952 vehicles/day
Location
| State | Michigan |
| County | Oakland |
| Location | 0.9 Mi W Of Coolidge HWY |
| Carries | Derby ST |
| Crosses | Grand Trunk Western Rr |
| Coordinates | 42.55429, -83.20304 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 165.0 ft (50.3 m) |
| Max Span | 31.8 ft (9.7 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 658.9 sq m |
| Main Spans | 5 |
| Year Built | 1930 (reconstructed 2007) |
Traffic
| Avg Daily Traffic | 1,952 (1988) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000008230 |