Structure 12979 · Wexford County, MI
Carries No 31 Road over Mitchell Creek, Cherry Grove Twp Sec 9-10.
Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.
How ratings work23 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a deck arch.
| State | Michigan |
| County | Wexford |
| Location | Cherry Grove Twp Sec 9-10 |
| Carries | No 31 Road |
| Crosses | Mitchell Creek |
| Coordinates | 44.23655, -85.51755 |
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 23.0 ft (7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 68.6 sq m |
| Main Spans | 1 |
| Year Built | 2000 |
| Avg Daily Traffic | 530 (2005) |
| 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 | 5 — Stable for scour |
| Structure Number | 000000000012979 |
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.