County RD #4 over Trib to Shadehill Ck
FairPerkins County, South Dakota · 11E 5N Bison · Structure no. 000000053349240
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected May 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 45
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
County RD #4 over Trib to Shadehill Ck is a concrete continuous culvert carrying County RD #4 over Trib to Shadehill Ck in Perkins County, South Dakota. It was built in 2004, so it is 21 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County RD #4 over Trib to Shadehill Ck built?
It was built in 2004, making it 21 years old in 2025.
What condition is County RD #4 over Trib to Shadehill Ck in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2021.
How much traffic does County RD #4 over Trib to Shadehill Ck carry?
About 45 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is County RD #4 over Trib to Shadehill Ck?
The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).
Who owns County RD #4 over Trib to Shadehill Ck?
It is owned by the County Highway Agency.