SD115 over Big Sioux Rv
FairMinnehaha County, South Dakota · 0.2 S of Dell Rapids · Structure no. 000000050206020
- Built
- 2018
- 7 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 431 ft
- 4 main spans
- Daily traffic
- 3,514
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD115 over Big Sioux Rv is a prestressed concrete stringer/multi-beam or girder carrying SD115 over Big Sioux Rv in Minnehaha County, South Dakota. It was built in 2018, so it is 7 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 3,514 vehicles a day, roughly 9% of them trucks, projected to reach 5,443 by 2044. The structure is 431 ft (131.3 m) long and 57 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD115 over Big Sioux Rv built?
It was built in 2018, making it 7 years old in 2025.
What condition is SD115 over Big Sioux 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 SD115 over Big Sioux Rv carry?
About 3,514 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is SD115 over Big Sioux Rv?
The structure is 431 ft (131.3 m) long with a longest span of 110 ft (33.5 m) and a deck 57 ft wide.
Who owns SD115 over Big Sioux Rv?
It is owned by the State Highway Agency.