SD258 over Snow Ck
GoodAurora County, South Dakota · 0.5N & E I90 Interchange · Structure no. 00000000215D154
- Built
- 1950
- 75 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 3 main spans
- Daily traffic
- 798
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SD258 over Snow Ck is a concrete continuous culvert carrying SD258 over Snow Ck in Aurora County, South Dakota. It was built in 1950, so it is 75 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 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 798 vehicles a day, roughly 5% of them trucks, projected to reach 1,185 by 2044. The structure is 25 ft (7.6 m) long.
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD258 over Snow Ck built?
It was built in 1950, making it 75 years old in 2025.
What condition is SD258 over Snow Ck 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 September 2024.
How much traffic does SD258 over Snow Ck carry?
About 798 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is SD258 over Snow Ck?
The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).
Who owns SD258 over Snow Ck?
It is owned by the State Highway Agency.