8th Street over Big Sioux River
FairMinnehaha County, South Dakota · E of Phillips Avenue - Sf · Structure no. 000000050203206
- Built
- 1912
- 113 years old
- Condition
- Fair
- inspected October 2023
- Type
- Arch - Deck
- Concrete
- Length
- 241 ft
- 3 main spans
- Daily traffic
- 7,100
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
8th Street over Big Sioux River is a concrete arch - deck carrying 8th Street over Big Sioux River in Minnehaha County, South Dakota. It was built in 1912, so it is 113 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 7,100 vehicles a day, roughly 1% of them trucks, projected to reach 9,100 by 2032. The structure is 241 ft (73.5 m) long and 73 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 8th Street over Big Sioux River built?
It was built in 1912, making it 113 years old in 2025.
What condition is 8th Street over Big Sioux River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.
How much traffic does 8th Street over Big Sioux River carry?
About 7,100 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is 8th Street over Big Sioux River?
The structure is 241 ft (73.5 m) long with a longest span of 85 ft (26 m) and a deck 73 ft wide.
Who owns 8th Street over Big Sioux River?
It is owned by the City or Municipal Highway Agency.