261st Street over Trib to Beaver Ck
FairMinnehaha County, South Dakota · 1N & 0.3W Valley Springs · Structure no. 000000050327170
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 62
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
261st Street over Trib to Beaver Ck is a prestressed concrete tee beam carrying 261st Street over Trib to Beaver Ck in Minnehaha 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 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 62 vehicles a day, roughly 2% of them trucks, projected to reach 125 by 2037. The structure is 61 ft (18.6 m) long and 24 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 261st Street over Trib to Beaver Ck built?
It was built in 1978, making it 47 years old in 2025.
What condition is 261st Street over Trib to Beaver 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 June 2024.
How much traffic does 261st Street over Trib to Beaver Ck carry?
About 62 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 261st Street over Trib to Beaver Ck?
The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.
Who owns 261st Street over Trib to Beaver Ck?
It is owned by the County Highway Agency.