IRR SD020 over Ck
GoodDewey County, South Dakota · 5.2 E JCT Sd 63 · Structure no. 000000021191029
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 3 main spans
- Daily traffic
- 890
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR SD020 over Ck is a concrete continuous culvert carrying IRR SD020 over Ck in Dewey County, South Dakota. It was built in 1997, so it is 28 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 890 vehicles a day, roughly 13% of them trucks, projected to reach 1,298 by 2044. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 52.8 mi (85 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 | 9 Excellent | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR SD020 over Ck built?
It was built in 1997, making it 28 years old in 2025.
What condition is IRR SD020 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 July 2023.
How much traffic does IRR SD020 over Ck carry?
About 890 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is IRR SD020 over Ck?
The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3 m).
Who owns IRR SD020 over Ck?
It is owned by the State Highway Agency.