Grosvenor HWY over Swamp Raisin Drain
Good Condition18 years old192 vehicles/day
Location
| State | Michigan |
| County | Lenawee |
| Location | 0.2 Mi South Of Mitchell |
| Carries | Grosvenor HWY |
| Crosses | Swamp Raisin Drain |
| Coordinates | 41.90912, -83.90530 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 36.4 ft (11.1 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Area | 101.0 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 192 (2012) |
| Truck Traffic | 1% |
| 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 | 000000000005686 |