SD231 Ser RD over Blackhawk Ck
GoodMeade County, South Dakota · 1.0 N Pennington CO Line · Structure no. 000000047131612
- Built
- 1957
- 68 years old, rebuilt 2000
- Condition
- Good
- inspected June 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 44 ft
- 3 main spans
- Daily traffic
- 7,310
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SD231 Ser RD over Blackhawk Ck is a concrete continuous culvert carrying SD231 Ser RD over Blackhawk Ck in Meade County, South Dakota. It was built in 1957 and reconstructed in 2000, so it is 68 years old, older 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 7,310 vehicles a day, roughly 2% of them trucks, projected to reach 9,028 by 2043. The structure is 44 ft (13.4 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 SD231 Ser RD over Blackhawk Ck built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2000.
What condition is SD231 Ser RD over Blackhawk 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 2022.
How much traffic does SD231 Ser RD over Blackhawk Ck carry?
About 7,310 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is SD231 Ser RD over Blackhawk Ck?
The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).
Who owns SD231 Ser RD over Blackhawk Ck?
It is owned by the State Highway Agency.