266 Street over Thunder Ck
FairTripp County, South Dakota · 5.3 E Ideal · Structure no. 000000062215160
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
266 Street over Thunder Ck is a prestressed concrete continuous stringer/multi-beam or girder carrying 266 Street over Thunder Ck in Tripp County, South Dakota. It was built in 1993, so it is 32 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 35 vehicles a day, projected to reach 35 by 2042. The structure is 160 ft (48.8 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 266 Street over Thunder Ck built?
It was built in 1993, making it 32 years old in 2025.
What condition is 266 Street over Thunder 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 2023.
How much traffic does 266 Street over Thunder Ck carry?
About 35 vehicles per day (2022 count).
How long is 266 Street over Thunder Ck?
The structure is 160 ft (48.8 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.
Who owns 266 Street over Thunder Ck?
It is owned by the County Highway Agency.