IRR BIA RTE 4 over Little Oak Creek
GoodCorson County, South Dakota · 5.8KM SW of Little Eagle · Structure no. 00000000000A137
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 97 ft
- 1 main span
- Daily traffic
- 116
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 4 over Little Oak Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE 4 over Little Oak Creek in Corson County, South Dakota. It was built in 2002, so it is 23 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 116 vehicles a day, roughly 10% of them trucks, projected to reach 125 by 2043. The structure is 97 ft (29.5 m) long and 36 ft wide. If it were closed, the detour would be 21.1 mi (34 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 4 over Little Oak Creek built?
It was built in 2002, making it 23 years old in 2025.
What condition is IRR BIA RTE 4 over Little Oak Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does IRR BIA RTE 4 over Little Oak Creek carry?
About 116 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 4 over Little Oak Creek?
The structure is 97 ft (29.5 m) long with a longest span of 97 ft (29.5 m) and a deck 36 ft wide.
Who owns IRR BIA RTE 4 over Little Oak Creek?
It is owned by the Bureau of Indian Affairs.