404th Avenue over Trib Twelve Mile Ck
FairDavison County, South Dakota · 7W & 0.3N Ethan · Structure no. 000000018100207
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected August 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
404th Avenue over Trib Twelve Mile Ck is a concrete continuous culvert carrying 404th Avenue over Trib Twelve Mile Ck in Davison County, South Dakota. It was built in 1950, so it is 75 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.
It carries about 35 vehicles a day, projected to reach 40 by 2036. The structure is 26 ft (7.9 m) long and 18 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 404th Avenue over Trib Twelve Mile Ck built?
It was built in 1950, making it 75 years old in 2025.
What condition is 404th Avenue over Trib Twelve Mile 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 August 2024.
How much traffic does 404th Avenue over Trib Twelve Mile Ck carry?
About 35 vehicles per day (2022 count).
How long is 404th Avenue over Trib Twelve Mile Ck?
The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.5 m) and a deck 18 ft wide.
Who owns 404th Avenue over Trib Twelve Mile Ck?
It is owned by the County Highway Agency.