Structure 11346 · Wayne County, MI
Carries M-14 (old) over Tonquish Creek, 0.3 Mi E Main ST Plymouth.
A culvert 20 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 | Wayne |
| Location | 0.3 Mi E Main ST Plymouth |
| Carries | M-14 (old) |
| Crosses | Tonquish Creek |
| Coordinates | 42.35883, -83.46552 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 18.7 ft (5.7 m) |
| Deck Area | 140.3 sq m |
| Main Spans | 1 |
| Year Built | 1926 (reconstructed 1974) |
| Avg Daily Traffic | 32,679 (2007) |
| Truck Traffic | 1% |
| Lanes On Bridge | 4 |
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 3 — Scour critical |
| Structure Number | 000000000011346 |
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.