M-52 over Letts Drain
Fair Condition75 years old16,199 vehicles/day
Location
| State | Michigan |
| County | Washtenaw |
| Location | In Chelsea |
| Carries | M-52 |
| Crosses | Letts Drain |
| Coordinates | 42.32375, -84.02075 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 54.1 ft (16.5 m) |
| Deck Area | 150.2 sq m |
| Main Spans | 1 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 16,199 (2007) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000010809 |