Twin Butte Road over Grand River
GoodCorson County, South Dakota · 9E & 18S Thunder Hawk · Structure no. 000000016098185
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Steel
- Length
- 140 ft
- 13 main spans
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Twin Butte Road over Grand River is a steel culvert carrying Twin Butte Road over Grand River in Corson County, South Dakota. It was built in 1990, so it is 35 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 20 vehicles a day, projected to reach 20 by 2042. The structure is 140 ft (42.7 m) long and 40 ft wide. If it were closed, the detour would be 26.1 mi (42 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 | 4 Poor | Advanced section loss, deterioration, 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 Grand River built?
It was built in 1990, making it 35 years old in 2025.
What condition is Twin Butte Road over Grand River 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 Grand River carry?
About 20 vehicles per day (2022 count).
How long is Twin Butte Road over Grand River?
The structure is 140 ft (42.7 m) long with a longest span of 51 ft (15.5 m) and a deck 40 ft wide.
Who owns Twin Butte Road over Grand River?
It is owned by the County Highway Agency.