M-81 over Marsh Drain
Good Condition19 years old6,273 vehicles/day
Location
| State | Michigan |
| County | Tuscola |
| Location | 3.7 Mi W Of Sanilac Col |
| Carries | M-81 |
| Crosses | Marsh Drain |
| Coordinates | 43.60070, -83.18696 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 25.6 ft (7.8 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Area | 116.2 sq m |
| Main Spans | 1 |
| Year Built | 2007 |
Traffic
| Avg Daily Traffic | 6,273 (2007) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000010435 |