474th Avenue over Big Sioux River
GoodMinnehaha County, South Dakota · 1.8S & 0.4W Dell Rapids · Structure no. 000000050200035
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 178
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
474th Avenue over Big Sioux River is a prestressed concrete stringer/multi-beam or girder carrying 474th Avenue over Big Sioux River in Minnehaha County, South Dakota. It was built in 1997, so it is 28 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 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 178 vehicles a day, roughly 2% of them trucks, projected to reach 207 by 2037. The structure is 156 ft (47.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 474th Avenue over Big Sioux River built?
It was built in 1997, making it 28 years old in 2025.
What condition is 474th Avenue over Big Sioux 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 2023.
How much traffic does 474th Avenue over Big Sioux River carry?
About 178 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 474th Avenue over Big Sioux River?
The structure is 156 ft (47.5 m) long with a longest span of 53 ft (16.3 m) and a deck 34 ft wide.
Who owns 474th Avenue over Big Sioux River?
It is owned by the County Highway Agency.