I090 W over 448 Ave
McCook County, South Dakota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I090 W over 448 Ave in McCook County, South Dakota, 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 1964, making it 61 years old at the 2025 inventory.
- It carries about 6,752 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 44 of the 98 inventoried bridges in McCook County rated good (44.9%); 7 (7.1%) are rated poor.
- 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 → (43.66647, -97.34769)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 119 ft |
| Location | 2 E US 81 Interch |
| NBI structure number | 000000044130125 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.
Busiest bridges in McCook County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I090 W over East Fork Vermillion Rv | 2022 | 6,819 | Good |
| I090 E over East Fork Vermillion Rv | 2021 | 6,819 | Good |
| I090 W over 453 Ave | 1964 | 6,819 | Good |
| I090 E over 453 Ave | 1964 | 6,819 | Good |
| I090 E over 448 Ave | 1964 | 6,752 | Good |
| I090 W over West Fork Vermillion Rv | 2022 | 6,497 | Good |
All bridges nearby: McCook County, SD bridge conditions · every bridge in McCook County · South Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.