US018 over I029
GoodLincoln County, South Dakota · US 18 E Interchange · Structure no. 000000042065140
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 243 ft
- 2 main spans
- Daily traffic
- 3,597
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US018 over I029 is a concrete stringer/multi-beam or girder carrying US018 over I029 in Lincoln County, South Dakota. It was built in 2015, so it is 10 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 3,597 vehicles a day, roughly 15% of them trucks, projected to reach 6,090 by 2044. The structure is 243 ft (74.2 m) long and 55 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 US018 over I029 built?
It was built in 2015, making it 10 years old in 2025.
What condition is US018 over I029 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 December 2023.
How much traffic does US018 over I029 carry?
About 3,597 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is US018 over I029?
The structure is 243 ft (74.2 m) long with a longest span of 121 ft (36.8 m) and a deck 55 ft wide.
Who owns US018 over I029?
It is owned by the State Highway Agency.