County RD over Rock Ck
GoodMiner County, South Dakota · 1S & 2.1E Carthage · Structure no. 000000049091030
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected August 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 30
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
County RD over Rock Ck is a concrete continuous culvert carrying County RD over Rock Ck in Miner 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 30 by 2032. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County RD over Rock Ck built?
It was built in 1990, making it 35 years old in 2025.
What condition is County RD over Rock 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 August 2024.
How much traffic does County RD over Rock Ck carry?
About 30 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is County RD over Rock Ck?
The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).
Who owns County RD over Rock Ck?
It is owned by the County Highway Agency.