IRR BIA RTE 6 over Red Coat Creek
FairZiebach County, South Dakota · 1.9 KM SE of Red Scaffold · Structure no. 00000000000A101
- Built
- 1976
- 49 years old, rebuilt 2005
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 88 ft
- 3 main spans
- Daily traffic
- 275
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 6 over Red Coat Creek is a prestressed concrete tee beam carrying IRR BIA RTE 6 over Red Coat Creek in Ziebach County, South Dakota. It was built in 1976 and reconstructed in 2005, so it is 49 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 395 by 2043. The structure is 88 ft (26.8 m) long and 34 ft wide. If it were closed, the detour would be 47.8 mi (77 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 6 over Red Coat Creek built?
It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2005.
What condition is IRR BIA RTE 6 over Red Coat 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 Red Coat Creek carry?
About 275 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 6 over Red Coat Creek?
The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.4 m) and a deck 34 ft wide.
Who owns IRR BIA RTE 6 over Red Coat Creek?
It is owned by the Bureau of Indian Affairs.