47340 310th ST over Ck
PoorUnion County, South Dakota · 12S & 1.4E Beresford · Structure no. 000000064034130
- Built
- 1935
- 90 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 1 main span
- Daily traffic
- 25
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
47340 310th ST over Ck is a steel stringer/multi-beam or girder carrying 47340 310th ST over Ck in Union County, South Dakota. It was built in 1935, so it is 90 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.
It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 31 ft (9.3 m) long and 28 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 47340 310th ST over Ck built?
It was built in 1935, making it 90 years old in 2025.
What condition is 47340 310th ST over Ck 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 47340 310th ST over Ck carry?
About 25 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 47340 310th ST over Ck?
The structure is 31 ft (9.3 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.
Who owns 47340 310th ST over Ck?
It is owned by the County Highway Agency.