M-13 over Ryan Drain
Fair Condition89 years old10,813 vehicles/day
Location
| State | Michigan |
| County | Bay |
| Location | 6.4 Mi S Of Pinconning |
| Carries | M-13 |
| Crosses | Ryan Drain |
| Coordinates | 43.76479, -83.97685 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 35.8 ft (10.9 m) |
| Max Span | 16.7 ft (5.1 m) |
| Deck Area | 238.7 sq m |
| Main Spans | 2 |
| Year Built | 1937 (reconstructed 1951) |
Traffic
| Avg Daily Traffic | 10,813 (2007) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000589 |