Koehn Road over Cox-doty Drain
Fair Condition15 years old175 vehicles/day
Location
| State | Michigan |
| County | St. Clair |
| Location | Sec. 36 Mussey Twp. |
| Carries | Koehn Road |
| Crosses | Cox-doty Drain |
| Coordinates | 42.99125, -82.87110 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 36.1 ft (11 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Area | 80.3 sq m |
| Main Spans | 1 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 175 (1994) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000010218 |