I-35 NB over S.H. 51 Under
Payne County, Oklahoma · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-35 NB over S.H. 51 Under in Payne County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 10,100 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 93 of the 384 inventoried bridges in Payne County rated good (24.2%); 40 (10.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2024, on a 24-month routine inspection cycle.
- 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 → (36.11537, -97.34496)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 225 ft |
| Location | 8.9N Logan C/l |
| NBI structure number | 281820000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
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.