473rd Avenue over Trib to Big Sioux Rv
FairMinnehaha County, South Dakota · 1.1N & 1W Baltic · Structure no. 000000050190049
- Built
- 1937
- 88 years old, rebuilt 1976
- Condition
- Fair
- inspected July 2023
- Type
- Channel Beam
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 65
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
473rd Avenue over Trib to Big Sioux Rv is a concrete channel beam carrying 473rd Avenue over Trib to Big Sioux Rv in Minnehaha County, South Dakota. It was built in 1937 and reconstructed in 1976, so it is 88 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 65 vehicles a day, roughly 2% of them trucks, projected to reach 75 by 2037. The structure is 36 ft (11 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 473rd Avenue over Trib to Big Sioux Rv built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1976.
What condition is 473rd Avenue over Trib to Big Sioux Rv 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 July 2023.
How much traffic does 473rd Avenue over Trib to Big Sioux Rv carry?
About 65 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 473rd Avenue over Trib to Big Sioux Rv?
The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.
Who owns 473rd Avenue over Trib to Big Sioux Rv?
It is owned by the County Highway Agency.