IRR BIA RTE 9 over Little White River
FairPosted for loadTodd County, South Dakota · 4.0 KM N JCT US 18 & Rt 9 · Structure no. 00000000000A030
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected August 2024
- Type
- Channel Beam
- Concrete
- Length
- 109 ft
- 3 main spans
- Daily traffic
- 531
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 9 over Little White River is a concrete channel beam carrying IRR BIA RTE 9 over Little White River in Todd County, South Dakota. It was built in 1970, so it is 55 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 531 vehicles a day, roughly 8% of them trucks, projected to reach 621 by 2044. The structure is 109 ft (33.2 m) long and 32 ft wide. If it were closed, the detour would be 15.5 mi (25 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 IRR BIA RTE 9 over Little White River built?
It was built in 1970, making it 55 years old in 2025.
What condition is IRR BIA RTE 9 over Little White River 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 August 2024.
How much traffic does IRR BIA RTE 9 over Little White River carry?
About 531 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is IRR BIA RTE 9 over Little White River?
The structure is 109 ft (33.2 m) long with a longest span of 35 ft (10.7 m) and a deck 32 ft wide.
Who owns IRR BIA RTE 9 over Little White River?
It is owned by the Bureau of Indian Affairs.