SD025 over I090
FairHanson County, South Dakota · Sd 25 Interchange · Structure no. 000000031150125
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 254 ft
- 4 main spans
- Daily traffic
- 383
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD025 over I090 is a steel continuous stringer/multi-beam or girder carrying SD025 over I090 in Hanson County, South Dakota. It was built in 1965, so it is 60 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 5 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 383 vehicles a day, roughly 37% of them trucks, projected to reach 591 by 2044. The structure is 254 ft (77.4 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD025 over I090 built?
It was built in 1965, making it 60 years old in 2025.
What condition is SD025 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 2024.
How much traffic does SD025 over I090 carry?
About 383 vehicles per day (2024 count), of which roughly 37% are trucks.
How long is SD025 over I090?
The structure is 254 ft (77.4 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.
Who owns SD025 over I090?
It is owned by the State Highway Agency.