463rd Avenue over Little Minnesota River
FairRoberts County, South Dakota · 5E & 0.5S of Sisseton · Structure no. 000000055140195
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 80 ft
- 3 main spans
- Daily traffic
- 47
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
463rd Avenue over Little Minnesota River is a concrete continuous slab carrying 463rd Avenue over Little Minnesota River in Roberts County, South Dakota. It was built in 1986, so it is 39 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 47 vehicles a day, roughly 2% of them trucks, projected to reach 47 by 2032. The structure is 80 ft (24.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 463rd Avenue over Little Minnesota River built?
It was built in 1986, making it 39 years old in 2025.
What condition is 463rd Avenue over Little Minnesota River 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 July 2024.
How much traffic does 463rd Avenue over Little Minnesota River carry?
About 47 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 463rd Avenue over Little Minnesota River?
The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.
Who owns 463rd Avenue over Little Minnesota River?
It is owned by the County Highway Agency.