487th Avenue over Flandreau Creek
PoorPosted for loadMoody County, South Dakota · 1.7N & 6E of Flandreau · Structure no. 000000051210083
- Built
- 1982
- 43 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 57 ft
- 1 main span
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
487th Avenue over Flandreau Creek is a steel stringer/multi-beam or girder carrying 487th Avenue over Flandreau Creek in Moody County, South Dakota. It was built in 1982, so it is 43 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 3 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 15 vehicles a day, projected to reach 15 by 2042. The structure is 57 ft (17.5 m) long and 22 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 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 487th Avenue over Flandreau Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is 487th Avenue over Flandreau 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 August 2024.
How much traffic does 487th Avenue over Flandreau Creek carry?
About 15 vehicles per day (2022 count).
How long is 487th Avenue over Flandreau Creek?
The structure is 57 ft (17.5 m) long with a longest span of 56 ft (17.2 m) and a deck 22 ft wide.
Who owns 487th Avenue over Flandreau Creek?
It is owned by the County Highway Agency.