230 ST over Patterson Ck
GoodPennington County, South Dakota · 10.8E 2.0S N.Underwood · Structure no. 000000052719310
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected September 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 20 ft
- 2 main spans
- Daily traffic
- 9
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
230 ST over Patterson Ck is a concrete continuous culvert carrying 230 ST over Patterson Ck in Pennington County, South Dakota. It was built in 2006, so it is 19 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 9 vehicles a day, roughly 31% of them trucks, projected to reach 9 by 2040. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 8.1 mi (13 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 230 ST over Patterson Ck built?
It was built in 2006, making it 19 years old in 2025.
What condition is 230 ST over Patterson 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 September 2022.
How much traffic does 230 ST over Patterson Ck carry?
About 9 vehicles per day (2022 count), of which roughly 31% are trucks.
How long is 230 ST over Patterson Ck?
The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).
Who owns 230 ST over Patterson Ck?
It is owned by the County Highway Agency.