IRR BIA RTE 6 over Red Scaffold Creek
FairZiebach County, South Dakota · In Red Scaffold · Structure no. 00000000000A017
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 80 ft
- 3 main spans
- Daily traffic
- 165
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 6 over Red Scaffold Creek is a concrete continuous slab carrying IRR BIA RTE 6 over Red Scaffold Creek in Ziebach County, South Dakota. It was built in 1960, so it is 65 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 165 vehicles a day, roughly 5% of them trucks, projected to reach 263 by 2043. The structure is 80 ft (24.4 m) long and 28 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 6 over Red Scaffold Creek built?
It was built in 1960, making it 65 years old in 2025.
What condition is IRR BIA RTE 6 over Red Scaffold 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 Scaffold Creek carry?
About 165 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 6 over Red Scaffold Creek?
The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.
Who owns IRR BIA RTE 6 over Red Scaffold Creek?
It is owned by the Bureau of Indian Affairs.