Structure 12188 · Wayne County, MI
Carries Toledo Road over Blakely Drain, Brownstown N/sibley.
Set by its lowest-rated component: Deck and Superstructure at 4 of 9.
How ratings work24 ft end to end, longest span 11 ft. 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 | Wayne |
| Location | Brownstown N/sibley |
| Carries | Toledo Road |
| Crosses | Blakely Drain |
| Coordinates | 42.17646, -83.23564 |
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 10.8 ft (3.3 m) |
| Deck Width | 87.9 ft (26.8 m) |
| Deck Area | 195.6 sq m |
| Main Spans | 2 |
| Year Built | 1926 (reconstructed 1959) |
| Avg Daily Traffic | 13,881 (1997) |
| Truck Traffic | 8% |
| Lanes On Bridge | 4 |
| Last Inspection | November 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Unknown |
| Structure Number | 000000000012188 |
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.