475th Avenue over Six Mile Ck
GoodBrookings County, South Dakota · 2.3S & 3W White · Structure no. 000000006210098
- Built
- 2024
- 1 years old
- Condition
- Good
- inspected January 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 43 ft
- 3 main spans
- Daily traffic
- 92
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
475th Avenue over Six Mile Ck is a concrete continuous culvert carrying 475th Avenue over Six Mile Ck in Brookings County, South Dakota. It was built in 2024, so it is 1 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 92 vehicles a day, roughly 2% of them trucks, projected to reach 92 by 2032. The structure is 43 ft (13.2 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 475th Avenue over Six Mile Ck built?
It was built in 2024, making it 1 years old in 2025.
What condition is 475th Avenue over Six Mile 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 January 2025.
How much traffic does 475th Avenue over Six Mile Ck carry?
About 92 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 475th Avenue over Six Mile Ck?
The structure is 43 ft (13.2 m) long with a longest span of 14 ft (4.3 m) and a deck 20 ft wide.
Who owns 475th Avenue over Six Mile Ck?
It is owned by the County Highway Agency.