IRR BIA RTE 6 over Rattlesnake Creek
FairZiebach County, South Dakota · 13.0 KM SE Red Scaffold · Structure no. 00000000000A102
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 88 ft
- 3 main spans
- Daily traffic
- 293
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 6 over Rattlesnake Creek is a prestressed concrete tee beam carrying IRR BIA RTE 6 over Rattlesnake Creek in Ziebach County, South Dakota. It was built in 1986, so it is 39 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 293 vehicles a day, roughly 5% of them trucks, projected to reach 406 by 2043. The structure is 88 ft (26.8 m) long and 34 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 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 IRR BIA RTE 6 over Rattlesnake Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is IRR BIA RTE 6 over Rattlesnake Creek 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 May 2023.
How much traffic does IRR BIA RTE 6 over Rattlesnake Creek carry?
About 293 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 6 over Rattlesnake Creek?
The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.3 m) and a deck 34 ft wide.
Who owns IRR BIA RTE 6 over Rattlesnake Creek?
It is owned by the Bureau of Indian Affairs.