Structure 10537 · Tuscola County, MI
Carries Cass City Road over Southgate Drain, Sec 19-30 Akron Twp.
Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.
How ratings work24 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 multi-beam bridge.
| State | Michigan |
| County | Tuscola |
| Location | Sec 19-30 Akron Twp |
| Carries | Cass City Road |
| Crosses | Southgate Drain |
| Coordinates | 43.59447, -83.58375 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 22.6 ft (6.9 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 54.8 sq m |
| Main Spans | 1 |
| Year Built | 1945 |
| Avg Daily Traffic | 77 (2009) |
| Lanes On Bridge | 2 |
| Last Inspection | April 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 | 000000000010537 |
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.