N3270 over Black Bear Creek
Noble County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N3270 over Black Bear Creek in Noble County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1964, making it 61 years old at the 2025 inventory.
- It carries about 52 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 213 of the 342 inventoried bridges in Noble County rated fair (62.3%); 12 (3.5%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated August 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 → (36.34957, -97.17535)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 401 ft |
| Location | 3.1W 2.2N of Sumner |
| NBI structure number | 161760000000000 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Noble County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Creek | 1960 | 17,600 | Fair |
| I-35 over Hackberry Creek | 1960 | 17,600 | Fair |
| I-35 over Creek | 1960 | 17,100 | Good |
| I-35 over Creek | 1960 | 17,100 | Fair |
| I-35 over Red Rock CR Oflow & Rd | 1960 | 17,100 | Fair |
| I-35 over Doe Creek | 1960 | 17,100 | Fair |
All bridges nearby: Noble County, OK bridge conditions · every bridge in Noble County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.