471st Avenue over Creek
PoorPosted for loadRoberts County, South Dakota · 0.8NW of Corona · Structure no. 000000055223411
- Built
- 1934
- 91 years old, rebuilt 1970
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 26 ft
- 1 main span
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
471st Avenue over Creek is a steel stringer/multi-beam or girder carrying 471st Avenue over Creek in Roberts County, South Dakota. It was built in 1934 and reconstructed in 1970, so it is 91 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 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. Its operating status is: posted for load restriction.
It carries about 50 vehicles a day, roughly 2% of them trucks, projected to reach 50 by 2032. The structure is 26 ft (7.8 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 471st Avenue over Creek built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1970.
What condition is 471st Avenue over Creek 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 July 2024.
How much traffic does 471st Avenue over Creek carry?
About 50 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 471st Avenue over Creek?
The structure is 26 ft (7.8 m) long with a longest span of 25 ft (7.5 m) and a deck 29 ft wide.
Who owns 471st Avenue over Creek?
It is owned by the County Highway Agency.