6th Street over Big Sioux River
GoodMinnehaha County, South Dakota · East of Phillips Avenue · Structure no. 000000050203205
- Built
- 1975
- 50 years old, rebuilt 2024
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 231 ft
- 4 main spans
- Daily traffic
- 9,100
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
6th Street over Big Sioux River is a concrete continuous slab carrying 6th Street over Big Sioux River in Minnehaha County, South Dakota. It was built in 1975 and reconstructed in 2024, so it is 50 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 9,100 vehicles a day, roughly 8% of them trucks, projected to reach 8,000 by 2032. The structure is 231 ft (70.5 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 6th Street over Big Sioux River built?
It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2024.
What condition is 6th Street 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 2024.
How much traffic does 6th Street over Big Sioux River carry?
About 9,100 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is 6th Street over Big Sioux River?
The structure is 231 ft (70.5 m) long with a longest span of 62 ft (19 m) and a deck 62 ft wide.
Who owns 6th Street over Big Sioux River?
It is owned by the City or Municipal Highway Agency.