Structure 4829476 · Lucas County, OH
Carries I80 Oh Tpk over Cairl Ditch, 4 Mi West Of Exit 59.
A culvert 25 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 | Ohio |
| County | Lucas |
| Location | 4 Mi West Of Exit 59 |
| Carries | I80 Oh Tpk |
| Crosses | Cairl Ditch |
| Coordinates | 41.59122, -83.74690 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Area | 287.3 sq m |
| Main Spans | 1 |
| Year Built | 1954 |
| Avg Daily Traffic | 24,423 (2015) |
| Truck Traffic | 43% |
| Lanes On Bridge | 4 |
| Last Inspection | March 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 4829476 |
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.