Twin Butte Road over Trib. to Blk Horse Butte
GoodCorson County, South Dakota · 1.0W & 28.5S Keldron · Structure no. 000000016091295
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Steel
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 14
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Twin Butte Road over Trib. to Blk Horse Butte is a steel culvert carrying Twin Butte Road over Trib. to Blk Horse Butte in Corson County, South Dakota. It was built in 2005, so it is 20 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 14 vehicles a day, roughly 9% of them trucks, projected to reach 14 by 2032. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 18 mi (29 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Twin Butte Road over Trib. to Blk Horse Butte built?
It was built in 2005, making it 20 years old in 2025.
What condition is Twin Butte Road over Trib. to Blk Horse Butte 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 June 2024.
How much traffic does Twin Butte Road over Trib. to Blk Horse Butte carry?
About 14 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is Twin Butte Road over Trib. to Blk Horse Butte?
The structure is 25 ft (7.7 m) long with a longest span of 10 ft (3.2 m).
Who owns Twin Butte Road over Trib. to Blk Horse Butte?
It is owned by the County Highway Agency.