SD050 over I029
FairPosted for loadUnion County, South Dakota · Sd 50 Interchange · Structure no. 000000064008205
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 293 ft
- 4 main spans
- Daily traffic
- 1,366
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD050 over I029 is a concrete continuous box beam or girders - multiple carrying SD050 over I029 in Union County, South Dakota. It was built in 1960, so it is 65 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. Its operating status is: posted for load restriction.
It carries about 1,366 vehicles a day, roughly 21% of them trucks, projected to reach 2,104 by 2044. The structure is 293 ft (89.4 m) long and 34 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 SD050 over I029 built?
It was built in 1960, making it 65 years old in 2025.
What condition is SD050 over I029 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 August 2023.
How much traffic does SD050 over I029 carry?
About 1,366 vehicles per day (2024 count), of which roughly 21% are trucks.
How long is SD050 over I029?
The structure is 293 ft (89.4 m) long with a longest span of 80 ft (24.4 m) and a deck 34 ft wide.
Who owns SD050 over I029?
It is owned by the State Highway Agency.