Structure 5963 · Mackinac County, MI
Carries M-117 over Doe Creek, 2.2 Mi N Of Engadine.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 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 slab bridge.
| State | Michigan |
| County | Mackinac |
| Location | 2.2 Mi N Of Engadine |
| Carries | M-117 |
| Crosses | Doe Creek |
| Coordinates | 46.14790, -85.57130 |
| Material | Concrete |
| Design | Slab |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 22.6 ft (6.9 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 95.1 sq m |
| Main Spans | 1 |
| Year Built | 1954 |
| Avg Daily Traffic | 1,760 (2007) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000005963 |
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.