I029 S over I229 S & I029 S Off Ramp
GoodLincoln County, South Dakota · I 29 & I 229 Interchange · Structure no. 000000042066006
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected October 2022
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 304 ft
- 2 main spans
- Daily traffic
- 29,860
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I029 S over I229 S & I029 S Off Ramp is a steel continuous stringer/multi-beam or girder carrying I029 S over I229 S & I029 S Off Ramp in Lincoln County, South Dakota. It was built in 2016, so it is 9 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 29,860 vehicles a day, roughly 18% of them trucks, projected to reach 49,657 by 2044. The structure is 304 ft (92.7 m) long and 59 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 S over I229 S & I029 S Off Ramp built?
It was built in 2016, making it 9 years old in 2025.
What condition is I029 S over I229 S & I029 S Off Ramp 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 October 2022.
How much traffic does I029 S over I229 S & I029 S Off Ramp carry?
About 29,860 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is I029 S over I229 S & I029 S Off Ramp?
The structure is 304 ft (92.7 m) long with a longest span of 157 ft (47.9 m) and a deck 59 ft wide.
Who owns I029 S over I229 S & I029 S Off Ramp?
It is owned by the State Highway Agency.