478th Avenue over Ck
GoodBrookings County, South Dakota · 5.8N Bushnell · Structure no. 000000006240092
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 712
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
478th Avenue over Ck is a prestressed concrete tee beam carrying 478th Avenue over Ck in Brookings County, South Dakota. It was built in 2016, so it is 9 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 712 vehicles a day, roughly 3% of them trucks, projected to reach 712 by 2034. The structure is 67 ft (20.4 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 478th Avenue over Ck built?
It was built in 2016, making it 9 years old in 2025.
What condition is 478th Avenue over 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 September 2023.
How much traffic does 478th Avenue over Ck carry?
About 712 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 478th Avenue over Ck?
The structure is 67 ft (20.4 m) long with a longest span of 63 ft (19.2 m) and a deck 33 ft wide.
Who owns 478th Avenue over Ck?
It is owned by the County Highway Agency.