IRR I029 N over Little Minnesota Rv
FairRoberts County, South Dakota · 0.8 N Sd 10 & I29 Interch · Structure no. 000000055119183
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 147 ft
- 3 main spans
- Daily traffic
- 2,570
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
IRR I029 N over Little Minnesota Rv is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR I029 N over Little Minnesota Rv in Roberts County, South Dakota. It was built in 1982, so it is 43 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 2,570 vehicles a day, roughly 43% of them trucks, projected to reach 3,192 by 2044. The structure is 147 ft (44.7 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 I029 N over Little Minnesota Rv built?
It was built in 1982, making it 43 years old in 2025.
What condition is IRR I029 N over Little Minnesota 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 October 2024.
How much traffic does IRR I029 N over Little Minnesota Rv carry?
About 2,570 vehicles per day (2024 count), of which roughly 43% are trucks.
How long is IRR I029 N over Little Minnesota Rv?
The structure is 147 ft (44.7 m) long with a longest span of 56 ft (17.1 m) and a deck 43 ft wide.
Who owns IRR I029 N over Little Minnesota Rv?
It is owned by the State Highway Agency.