I029 N over Ck
FairUnion County, South Dakota · 0.4 S Sd 48 Interch · Structure no. 000000064006164
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete Continuous
- Length
- 67 ft
- 3 main spans
- Daily traffic
- 7,770
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I029 N over Ck is a concrete continuous slab carrying I029 N over Ck 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 7,770 vehicles a day, roughly 33% of them trucks, projected to reach 12,789 by 2044. The structure is 67 ft (20.5 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I029 N over Ck built?
It was built in 1961, making it 64 years old in 2025.
What condition is I029 N over Ck 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 June 2023.
How much traffic does I029 N over Ck carry?
About 7,770 vehicles per day (2024 count), of which roughly 33% are trucks.
How long is I029 N over Ck?
The structure is 67 ft (20.5 m) long with a longest span of 23 ft (7 m) and a deck 44 ft wide.
Who owns I029 N over Ck?
It is owned by the State Highway Agency.