49th Street over Big Sioux River
PoorMinnehaha County, South Dakota · 0.1W of Kiawanis Ave - Sf · Structure no. 000000050186235
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 258 ft
- 5 main spans
- Daily traffic
- 13,800
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
49th Street over Big Sioux River is a concrete continuous slab carrying 49th Street over Big Sioux River in Minnehaha County, South Dakota. It was built in 1979, so it is 46 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 13,800 vehicles a day, roughly 1% of them trucks, projected to reach 18,174 by 2032. The structure is 258 ft (78.5 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 49th Street over Big Sioux River built?
It was built in 1979, making it 46 years old in 2025.
What condition is 49th Street over Big Sioux River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.
How much traffic does 49th Street over Big Sioux River carry?
About 13,800 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is 49th Street over Big Sioux River?
The structure is 258 ft (78.5 m) long with a longest span of 57 ft (17.4 m) and a deck 66 ft wide.
Who owns 49th Street over Big Sioux River?
It is owned by the City or Municipal Highway Agency.