U.S. 81 over Cimarron River
Kingfisher County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- U.S. 81 over Cimarron River in Kingfisher County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1963 and reconstructed in 2012, making it 62 years old at the 2025 inventory.
- It carries about 2,500 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 207 of the 297 inventoried bridges in Kingfisher County rated fair (69.7%); 21 (7.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (35.95111, -97.91449)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 1,015 ft |
| Location | 6.9 Mi N Jct SH 33 |
| NBI structure number | 158670000000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Kingfisher County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. 81 over Kingfisher Creek | 2019 | 7,800 | Good |
| U.S. 81 over Creek | 1966 | 6,800 | Fair |
| U.S. 81 over Creek | 1966 | 6,800 | Good |
| U.S. 81 over Little Turkey Creek | 1957 | 5,800 | Fair |
| U.S. 81 over Creek | 1990 | 5,000 | Good |
| S.H. 3 & S.H. 33 over Creek | 1933 | 4,700 | Good |
All bridges nearby: Kingfisher County, OK bridge conditions · every bridge in Kingfisher County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.