I090 W over 259 Ave
Jones County, South Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I090 W over 259 Ave in Jones County, South Dakota, 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 1969, making it 56 years old at the 2025 inventory.
- It carries about 3,250 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 29 of the 37 inventoried bridges in Jones County rated fair (78.4%); 2 (5.4%) 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 → (43.90118, -100.94453)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 119 ft |
| Location | 3.2 W Okaton Interch |
| NBI structure number | 000000038060185 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in Jones County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I090 W over 286 Ave (fas 6259) | 1970 | 3,825 | Good |
| I090 E over 286 Ave (fas 6259) | 1970 | 3,825 | Fair |
| I090 W over 279 Ave (fas 6500) | 1970 | 3,793 | Fair |
| I090 E over 279 Ave (fas 6500) | 1970 | 3,793 | Fair |
| I090 W over 282 Ave | 1970 | 3,793 | Fair |
| I090 E over 282 Ave | 1970 | 3,793 | Fair |
All bridges nearby: Jones County, SD bridge conditions · every bridge in Jones County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.