371 Avenue over South Scalp Ck
FairGregory County, South Dakota · 5N US HWY 18 · Structure no. 000000027388292
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 23
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
371 Avenue over South Scalp Ck is a prestressed concrete tee beam carrying 371 Avenue over South Scalp Ck in Gregory County, South Dakota. It was built in 1977, so it is 48 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 23 vehicles a day, roughly 3% of them trucks, projected to reach 30 by 2032. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 371 Avenue over South Scalp Ck built?
It was built in 1977, making it 48 years old in 2025.
What condition is 371 Avenue over South Scalp 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 July 2024.
How much traffic does 371 Avenue over South Scalp Ck carry?
About 23 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 371 Avenue over South Scalp Ck?
The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.
Who owns 371 Avenue over South Scalp Ck?
It is owned by the County Highway Agency.