SD029 P over I029
FairUnion County, South Dakota · 1.9 N of N Sioux City Int · Structure no. 000000064149367
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 293 ft
- 4 main spans
- Daily traffic
- 3,276
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD029 P over I029 is a concrete continuous box beam or girders - multiple carrying SD029 P over I029 in Union County, South Dakota. It was built in 1961, so it is 64 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 3,276 vehicles a day, roughly 3% of them trucks, projected to reach 4,999 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD029 P over I029 built?
It was built in 1961, making it 64 years old in 2025.
What condition is SD029 P 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 SD029 P over I029 carry?
About 3,276 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is SD029 P 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 SD029 P over I029?
It is owned by the State Highway Agency.