456th Avenue over W. Brach Little Mn River
GoodRoberts County, South Dakota · 1W & 6.5N of Sisseton · Structure no. 000000055070126
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
456th Avenue over W. Brach Little Mn River is a concrete continuous culvert carrying 456th Avenue over W. Brach Little Mn River in Roberts County, South Dakota. It was built in 1994, so it is 31 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 32 ft (9.9 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 456th Avenue over W. Brach Little Mn River built?
It was built in 1994, making it 31 years old in 2025.
What condition is 456th Avenue over W. Brach Little Mn 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 July 2024.
How much traffic does 456th Avenue over W. Brach Little Mn River carry?
About 20 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 456th Avenue over W. Brach Little Mn River?
The structure is 32 ft (9.9 m) long with a longest span of 10 ft (3.2 m).
Who owns 456th Avenue over W. Brach Little Mn River?
It is owned by the County Highway Agency.