I029 over Nine Mile Ck
GoodLincoln County, South Dakota · 4.5 S Minnehaha CO Line · Structure no. 000000042065047
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected August 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 3 main spans
- Daily traffic
- 33,530
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I029 over Nine Mile Ck is a concrete continuous culvert carrying I029 over Nine Mile Ck in Lincoln County, South Dakota. It was built in 1958, so it is 67 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 33,530 vehicles a day, roughly 18% of them trucks, projected to reach 61,696 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I029 over Nine Mile Ck built?
It was built in 1958, making it 67 years old in 2025.
What condition is I029 over Nine Mile Ck 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 August 2021.
How much traffic does I029 over Nine Mile Ck carry?
About 33,530 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is I029 over Nine Mile Ck?
The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).
Who owns I029 over Nine Mile Ck?
It is owned by the State Highway Agency.