20TH W. Ave. over Rock Creek
Osage County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 20TH W. Ave. over Rock Creek in Osage County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2006, making it 19 years old at the 2025 inventory.
- It carries about 400 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 167 of the 368 inventoried bridges in Osage County rated fair (45.4%); 66 (17.9%) 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 → (36.31399, -96.01385)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 109 ft |
| Location | 5E Skiatook LAKE;5S SH20 |
| NBI structure number | 273990000000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Osage County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N3934 (tisdale Ex) over Creek | 1987 | 12,200 | Fair |
| Tisdale Pkwy/ S-bd over Apache St. Under | 2001 | 12,000 | Fair |
| Tisdale Pkwy. N-bd over Apache St. Under | 2001 | 12,000 | Fair |
| Gilcrease Expwy over Creek | 2009 | 10,300 | Good |
| Gilcrease Expwy over Creek | 2009 | 10,300 | Good |
| U.S. 60 over Ark River & Co Rd Under | 1989 | 6,800 | Fair |
All bridges nearby: Osage County, OK bridge conditions · every bridge in Osage County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.