Structure 57900000000000 · Tillman County, OK
Carries E1870 over Creek, 6. S 3.7 W Of Frederick.
A culvert 25 ft across with 4 openings. 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 | Oklahoma |
| County | Tillman |
| Location | 6. S 3.7 W Of Frederick |
| Carries | E1870 |
| Crosses | Creek |
| Coordinates | 34.30519, -99.08059 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 5.9 ft (1.8 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 74.5 sq m |
| Main Spans | 4 |
| Year Built | 1938 |
| Avg Daily Traffic | 50 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 7 — Countermeasures installed |
| Structure Number | 057900000000000 |
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.