406th Ave over Byron Lk
GoodBeadle County, South Dakota · 4.5 S Bloomfield · Structure no. 000000003300045
- Built
- 1939
- 86 years old, rebuilt 1962
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
406th Ave over Byron Lk is a concrete culvert carrying 406th Ave over Byron Lk in Beadle County, South Dakota. It was built in 1939 and reconstructed in 1962, so it is 86 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 50 vehicles a day, roughly 3% of them trucks, projected to reach 50 by 2032. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 406th Ave over Byron Lk built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1962.
What condition is 406th Ave over Byron Lk 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 406th Ave over Byron Lk carry?
About 50 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 406th Ave over Byron Lk?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).
Who owns 406th Ave over Byron Lk?
It is owned by the County Highway Agency.