24510 420 Avenue over Rock Ck
FairHanson County, South Dakota · 1 E & 6.9 N Fulton · Structure no. 000000031080011
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
24510 420 Avenue over Rock Ck is a prestressed concrete tee beam carrying 24510 420 Avenue over Rock Ck in Hanson County, South Dakota. It was built in 1984, so it is 41 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 60 vehicles a day, roughly 3% of them trucks, projected to reach 60 by 2032. The structure is 50 ft (15.2 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 24510 420 Avenue over Rock Ck built?
It was built in 1984, making it 41 years old in 2025.
What condition is 24510 420 Avenue over Rock 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 2023.
How much traffic does 24510 420 Avenue over Rock Ck carry?
About 60 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 24510 420 Avenue over Rock Ck?
The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 23 ft wide.
Who owns 24510 420 Avenue over Rock Ck?
It is owned by the County Highway Agency.