I029 N over SD029 L
GoodUnion County, South Dakota · W Elk Point Interchange · Structure no. 000000064056269
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 188 ft
- 3 main spans
- Daily traffic
- 7,235
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I029 N over SD029 L is a prestressed concrete continuous stringer/multi-beam or girder carrying I029 N over SD029 L in Union County, South Dakota. It was built in 1994, so it is 31 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 7,235 vehicles a day, roughly 39% of them trucks, projected to reach 11,909 by 2044. The structure is 188 ft (57.4 m) long and 43 ft wide.
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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I029 N over SD029 L built?
It was built in 1994, making it 31 years old in 2025.
What condition is I029 N over SD029 L 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 2024.
How much traffic does I029 N over SD029 L carry?
About 7,235 vehicles per day (2024 count), of which roughly 39% are trucks.
How long is I029 N over SD029 L?
The structure is 188 ft (57.4 m) long with a longest span of 87 ft (26.5 m) and a deck 43 ft wide.
Who owns I029 N over SD029 L?
It is owned by the State Highway Agency.