398th Avenue over Cain Creek
FairBeadle County, South Dakota · 8.1S & 2W of Huron · Structure no. 000000003220261
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 56
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
398th Avenue over Cain Creek is a prestressed concrete tee beam carrying 398th Avenue over Cain Creek in Beadle County, South Dakota. It was built in 1978, so it is 47 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 56 vehicles a day, roughly 2% of them trucks, projected to reach 56 by 2032. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 398th Avenue over Cain Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is 398th Avenue over Cain Creek 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 August 2024.
How much traffic does 398th Avenue over Cain Creek carry?
About 56 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 398th Avenue over Cain Creek?
The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.
Who owns 398th Avenue over Cain Creek?
It is owned by the County Highway Agency.