US083 over I090
FairLyman County, South Dakota · US 83 N Interchange · Structure no. 000000043026195
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 372 ft
- 4 main spans
- Daily traffic
- 2,868
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US083 over I090 is a steel continuous stringer/multi-beam or girder carrying US083 over I090 in Lyman County, South Dakota. It was built in 1970, so it is 55 years old, older than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,868 vehicles a day, roughly 19% of them trucks, projected to reach 4,052 by 2044. The structure is 372 ft (113.4 m) long and 43 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US083 over I090 built?
It was built in 1970, making it 55 years old in 2025.
What condition is US083 over I090 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.
How much traffic does US083 over I090 carry?
About 2,868 vehicles per day (2024 count), of which roughly 19% are trucks.
How long is US083 over I090?
The structure is 372 ft (113.4 m) long with a longest span of 105 ft (32 m) and a deck 43 ft wide.
Who owns US083 over I090?
It is owned by the State Highway Agency.