Structure 8613 · Osceola County, MI
Carries Mackinaw Tr(210th) over East Branch Hersey Creek, Section 9/10 T18n R10w.
A culvert 24 ft across. 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 | Osceola |
| Location | Section 9/10 T18n R10w |
| Carries | Mackinaw Tr(210th) |
| Crosses | East Branch Hersey Creek |
| Coordinates | 43.96341, -85.50293 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 21.7 ft (6.6 m) |
| Deck Area | 66.4 sq m |
| Main Spans | 1 |
| Year Built | 2007 |
| Avg Daily Traffic | 965 (2006) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000008613 |
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.