N4330 over Squaw Creek
Mayes County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N4330 over Squaw Creek in Mayes County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2012, making it 13 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 92 of the 233 inventoried bridges in Mayes County rated good (39.5%); 30 (12.9%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (36.36354, -95.29192)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 32 ft |
| Location | 5S of Adair |
| NBI structure number | 306860000000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Mayes County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Will Rogers Tpi-44 over Osage Creek | 1957 | 16,800 | Good |
| U.S. 412 over U.S. 69 Under | 1987 | 15,200 | Fair |
| Will Rogers Tpi-44 over Bitter Creek | 1957 | 15,000 | Good |
| Will Rogers Tpi-44 over Creek | 1957 | 15,000 | Good |
| Will Rogers Tpi-44 over Little Pryor Creek | 1957 | 15,000 | Good |
| Will Rogers Tpi-44 over Pryor Creek | 1957 | 15,000 | Fair |
All bridges nearby: Mayes County, OK bridge conditions · every bridge in Mayes County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.