Structure 42480000000000 · Ottawa County, OK
Carries IRR N4520 over Creek, 1.0 E. & 1.4 S. Of Afton.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work22 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 | Oklahoma |
| County | Ottawa |
| Location | 1.0 E. & 1.4 S. Of Afton |
| Carries | IRR N4520 |
| Crosses | Creek |
| Coordinates | 36.67374, -94.94536 |
| Material | Concrete |
| Design | Slab |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 29.5 ft (9 m) |
| Deck Area | 60.3 sq m |
| Main Spans | 1 |
| Year Built | 1935 (reconstructed 2004) |
| Avg Daily Traffic | 125 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | September 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 042480000000000 |
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.