Structure 13281 · Lenawee County, MI
Carries Seneca HWY over Raisin River S Branch, 0.2 Mi S Of M-34.
A culvert 20 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Michigan |
| County | Lenawee |
| Location | 0.2 Mi S Of M-34 |
| Carries | Seneca HWY |
| Crosses | Raisin River S Branch |
| Coordinates | 41.85548, -84.17900 |
| Material | Steel |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 9.2 ft (2.8 m) |
| Deck Area | 39.7 sq m |
| Main Spans | 2 |
| Year Built | 1978 |
| Avg Daily Traffic | 340 (2006) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000013281 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.