31 Mile Road over Tupper Brook Drain
Good Condition62 years old420 vehicles/day
Location
| State | Michigan |
| County | Macomb |
| Location | 0.5 Mi West Of North AVE |
| Carries | 31 Mile Road |
| Crosses | Tupper Brook Drain |
| Coordinates | 42.79101, -82.89144 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 9 (Excellent) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Box Beam - Single/Spread |
| Total Length | 32.5 ft (9.9 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 92.1 sq m |
| Main Spans | 1 |
| Year Built | 1964 (reconstructed 2022) |
Traffic
| Avg Daily Traffic | 420 (2020) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000006381 |