S.H. 7 Duncan Bypa over Claridy Creek
Stephens County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S.H. 7 Duncan Bypa over Claridy Creek in Stephens County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2001, making it 24 years old at the 2025 inventory.
- It carries about 4,400 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 257 of the 382 inventoried bridges in Stephens County rated fair (67.3%); 9 (2.4%) are rated poor.
- 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 → (34.4905, -97.97181)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 50 ft |
| Location | .6 Mi. W of US81 |
| NBI structure number | 257070000000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Stephens County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. 81 over Claridy Creek | 1953 | 25,800 | Good |
| U.S. 81 over Stage Stand Creek | 1955 | 14,400 | Fair |
| S.H. 7 over Willow Creek | 1973 | 9,100 | Fair |
| U.S. 81 over Claridy Creek | 1979 | 7,800 | Good |
| U.S. 81 over Creek | 2018 | 7,800 | Good |
| U.S. 81 over Creek | 2015 | 7,800 | Good |
All bridges nearby: Stephens County, OK bridge conditions · every bridge in Stephens County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.