US081 over I090
GoodMcCook County, South Dakota · US 81 Interchange · Structure no. 000000044110125
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 246 ft
- 2 main spans
- Daily traffic
- 2,020
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US081 over I090 is a prestressed concrete continuous stringer/multi-beam or girder carrying US081 over I090 in McCook County, South Dakota. It was built in 1993, so it is 32 years old, younger than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,020 vehicles a day, roughly 22% of them trucks, projected to reach 3,024 by 2044. The structure is 246 ft (75 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US081 over I090 built?
It was built in 1993, making it 32 years old in 2025.
What condition is US081 over I090 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does US081 over I090 carry?
About 2,020 vehicles per day (2024 count), of which roughly 22% are trucks.
How long is US081 over I090?
The structure is 246 ft (75 m) long with a longest span of 122 ft (37.2 m) and a deck 43 ft wide.
Who owns US081 over I090?
It is owned by the State Highway Agency.