30310 483rd Ave over Ck
PoorClosed to trafficUnion County, South Dakota · 4E & 2.1S Alcester · Structure no. 000000064130061
- Built
- 1983
- 42 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 45
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
30310 483rd Ave over Ck is a steel stringer/multi-beam or girder carrying 30310 483rd Ave over Ck in Union County, South Dakota. It was built in 1983, so it is 42 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 1 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: closed to all traffic.
It carries about 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 27 ft (8.1 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 | 1 Imminent Failure | Major deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 1 Imminent Failure | Major deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service. |
| 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 30310 483rd Ave over Ck built?
It was built in 1983, making it 42 years old in 2025.
What condition is 30310 483rd Ave 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 30310 483rd Ave over Ck carry?
About 45 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 30310 483rd Ave over Ck?
The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.8 m) and a deck 28 ft wide.
Who owns 30310 483rd Ave over Ck?
It is owned by the County Highway Agency.