SD471 over Ck
GoodFall River County, South Dakota · 1.8 NW JCT Sd 71 · Structure no. 000000024188247
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 62
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD471 over Ck is a concrete continuous culvert carrying SD471 over Ck in Fall River County, South Dakota. It was built in 1991, so it is 34 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 62 vehicles a day, roughly 11% of them trucks, projected to reach 92 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 34.2 mi (55 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 | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD471 over Ck built?
It was built in 1991, making it 34 years old in 2025.
What condition is SD471 over 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 April 2024.
How much traffic does SD471 over Ck carry?
About 62 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is SD471 over Ck?
The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).
Who owns SD471 over Ck?
It is owned by the State Highway Agency.