IRR US018 over Little White Rv
FairTodd County, South Dakota · 9.2 W JCT US 83 N · Structure no. 000000061182044
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 141 ft
- 3 main spans
- Daily traffic
- 1,340
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR US018 over Little White Rv is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR US018 over Little White Rv in Todd County, South Dakota. It was built in 1989, so it is 36 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 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 1,340 vehicles a day, roughly 6% of them trucks, projected to reach 1,956 by 2044. The structure is 141 ft (43.1 m) long and 47 ft wide. If it were closed, the detour would be 52.8 mi (85 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 US018 over Little White Rv built?
It was built in 1989, making it 36 years old in 2025.
What condition is IRR US018 over Little White Rv 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 February 2024.
How much traffic does IRR US018 over Little White Rv carry?
About 1,340 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is IRR US018 over Little White Rv?
The structure is 141 ft (43.1 m) long with a longest span of 50 ft (15.2 m) and a deck 47 ft wide.
Who owns IRR US018 over Little White Rv?
It is owned by the State Highway Agency.