29280 431st Avenue over James River
PoorPosted for loadYankton County, South Dakota · 7.2N & 1E of Lesterville · Structure no. 000000068030018
- Built
- 1959
- 66 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 372 ft
- 5 main spans
- Daily traffic
- 315
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
29280 431st Avenue over James River is a steel stringer/multi-beam or girder carrying 29280 431st Avenue over James River in Yankton County, South Dakota. It was built in 1959, so it is 66 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 315 vehicles a day, roughly 3% of them trucks, projected to reach 315 by 2032. The structure is 372 ft (113.3 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 29280 431st Avenue over James River built?
It was built in 1959, making it 66 years old in 2025.
What condition is 29280 431st Avenue over James 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 July 2024.
How much traffic does 29280 431st Avenue over James River carry?
About 315 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 29280 431st Avenue over James River?
The structure is 372 ft (113.3 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.
Who owns 29280 431st Avenue over James River?
It is owned by the County Highway Agency.