SD047 over Ck
FairGregory County, South Dakota · 2.8 N Nebraska State Line · Structure no. 000000027120321
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 87 ft
- 3 main spans
- Daily traffic
- 326
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD047 over Ck is a concrete continuous slab carrying SD047 over Ck in Gregory 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 326 vehicles a day, roughly 28% of them trucks, projected to reach 450 by 2044. The structure is 87 ft (26.4 m) long and 34 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD047 over Ck built?
It was built in 1961, making it 64 years old in 2025.
What condition is SD047 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 April 2024.
How much traffic does SD047 over Ck carry?
About 326 vehicles per day (2024 count), of which roughly 28% are trucks.
How long is SD047 over Ck?
The structure is 87 ft (26.4 m) long with a longest span of 31 ft (9.4 m) and a deck 34 ft wide.
Who owns SD047 over Ck?
It is owned by the State Highway Agency.