472 Avenue over Yellow Br Ck
FairGrant County, South Dakota · 3.5S US 12 · Structure no. 000000026230106
- Built
- 1950
- 75 years old, rebuilt 1964
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 445
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
472 Avenue over Yellow Br Ck is a concrete continuous culvert carrying 472 Avenue over Yellow Br Ck in Grant County, South Dakota. It was built in 1950 and reconstructed in 1964, so it is 75 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 fair condition with a lowest component rating of 5 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 445 vehicles a day, roughly 2% of them trucks, projected to reach 445 by 2032. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 472 Avenue over Yellow Br Ck built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1964.
What condition is 472 Avenue over Yellow Br 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 September 2024.
How much traffic does 472 Avenue over Yellow Br Ck carry?
About 445 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 472 Avenue over Yellow Br Ck?
The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.3 m).
Who owns 472 Avenue over Yellow Br Ck?
It is owned by the County Highway Agency.