Co. Rd. N3340 over Cimarron Tp Under
Payne County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Co. Rd. N3340 over Cimarron Tp Under in Payne County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1973, making it 52 years old at the 2025 inventory.
- It carries about 1,900 vehicles a day (traffic count year 2022).
- It is one of 251 of the 384 inventoried bridges in Payne County rated fair (65.4%); 40 (10.4%) 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 → (36.20519, -97.05191)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 158 ft |
| Location | 1 Mi NE Jct US 177 |
| NBI structure number | 184970000000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.
Busiest bridges in Payne County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| E0610 (mc Elroy over West Boomer Creek | 1984 | 17,000 | Fair |
| S.H. 51 over Creek | 1960 | 15,800 | Fair |
| I-35 over Stillwater Creek | 1959 | 15,500 | Fair |
| E0600 over Boomer Lake | 1995 | 15,000 | Good |
| Western Ave. over Stillwater Creek | 2004 | 15,000 | Fair |
| U.S. 177 over Boomer Creek | 1982 | 14,700 | Fair |
All bridges nearby: Payne County, OK bridge conditions · every bridge in Payne County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.