30660 454 Ave over Clay Ck
FairClosed to trafficClay County, South Dakota · 9.6S & 2E Irene · Structure no. 000000014020096
- Built
- 1935
- 90 years old
- Condition
- Fair
- inspected June 2016
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
30660 454 Ave over Clay Ck is a wood or timber stringer/multi-beam or girder carrying 30660 454 Ave over Clay Ck in Clay 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.
It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 114 by 2032. The structure is 29 ft (8.8 m) long and 22 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 30660 454 Ave over Clay Ck built?
It was built in 1935, making it 90 years old in 2025.
What condition is 30660 454 Ave over Clay Ck in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2016.
How much traffic does 30660 454 Ave over Clay Ck carry?
About 35 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 30660 454 Ave over Clay Ck?
The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 22 ft wide.
Who owns 30660 454 Ave over Clay Ck?
It is owned by the County Highway Agency.