122nd Street over Little Minnesota River
GoodRoberts County, South Dakota · 8E & 3S of Sisseton · Structure no. 000000055170220
- Built
- 2020
- 5 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 126 ft
- 3 main spans
- Daily traffic
- 198
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
122nd Street over Little Minnesota River is a concrete continuous slab carrying 122nd Street over Little Minnesota River in Roberts County, South Dakota. It was built in 2020, so it is 5 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 198 vehicles a day, roughly 2% of them trucks, projected to reach 198 by 2032. The structure is 126 ft (38.4 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 122nd Street over Little Minnesota River built?
It was built in 2020, making it 5 years old in 2025.
What condition is 122nd Street over Little Minnesota River 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 June 2024.
How much traffic does 122nd Street over Little Minnesota River carry?
About 198 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 122nd Street over Little Minnesota River?
The structure is 126 ft (38.4 m) long with a longest span of 48 ft (14.6 m) and a deck 33 ft wide.
Who owns 122nd Street over Little Minnesota River?
It is owned by the County Highway Agency.