425th Avenue over Redstone Ck
FairKingsbury County, South Dakota · 0.6 S Manchester · Structure no. 000000039070126
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 150
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
425th Avenue over Redstone Ck is a concrete stringer/multi-beam or girder carrying 425th Avenue over Redstone Ck in Kingsbury County, South Dakota. It was built in 1963, so it is 62 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 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 150 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 2032. The structure is 31 ft (9.4 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 425th Avenue over Redstone Ck built?
It was built in 1963, making it 62 years old in 2025.
What condition is 425th Avenue over Redstone 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 August 2023.
How much traffic does 425th Avenue over Redstone Ck carry?
About 150 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 425th Avenue over Redstone Ck?
The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.
Who owns 425th Avenue over Redstone Ck?
It is owned by the County Highway Agency.