Fau 4121 (oak St) over S.H. 1 Under
Pontotoc County, Oklahoma · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fau 4121 (oak St) over S.H. 1 Under in Pontotoc 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 1968, making it 57 years old at the 2025 inventory.
- It carries about 500 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 142 of the 241 inventoried bridges in Pontotoc County rated fair (58.9%); 4 (1.7%) 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 June 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 → (34.78946, -96.68736)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel girder and floorbeam |
| Length | about 168 ft |
| Location | In Ada |
| NBI structure number | 172870000000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 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 Pontotoc County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| S.H. 1 over S.H. 99 Under | 2001 | 12,600 | Fair |
| S.H. 1 Mississippi over Creek | 1958 | 9,000 | Good |
| S.H. 19 over Big Sandy Creek | 2016 | 8,350 | Good |
| S.H. 19 over Big Sandy Creek | 2016 | 8,200 | Good |
| S.H. 3 (ramp) over Clear Boggy Creek | 1973 | 8,000 | Good |
| 6284C over Little Sandy Creek | 1972 | 7,800 | Fair |
All bridges nearby: Pontotoc County, OK bridge conditions · every bridge in Pontotoc County · Oklahoma bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.