IRR County Road over Antelope Ck
GoodTodd County, South Dakota · 2 S & 6.3 E of Mission · Structure no. 000000061363080
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected June 2023
- Type
- Culvert
- Concrete
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 27
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR County Road over Antelope Ck is a concrete culvert carrying IRR County Road over Antelope Ck in Todd County, South Dakota. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 27 vehicles a day, projected to reach 27 by 2042. The structure is 23 ft (7 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR County Road over Antelope Ck built?
It was built in 2020, making it 5 years old in 2025.
What condition is IRR County Road over Antelope 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 June 2023.
How much traffic does IRR County Road over Antelope Ck carry?
About 27 vehicles per day (2022 count).
How long is IRR County Road over Antelope Ck?
The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 20 ft wide.
Who owns IRR County Road over Antelope Ck?
It is owned by the County Highway Agency.