412th Avenue over Mud Creek
FairDay County, South Dakota · 4 W & 4.7 S of Andover · Structure no. 000000019000167
- Built
- 1930
- 95 years old, rebuilt 1985
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 33 ft
- 2 main spans
- Daily traffic
- 69
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
412th Avenue over Mud Creek is a concrete continuous slab carrying 412th Avenue over Mud Creek in Day County, South Dakota. It was built in 1930 and reconstructed in 1985, so it is 95 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 69 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2032. The structure is 33 ft (10.1 m) long and 31 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 412th Avenue over Mud Creek built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1985.
What condition is 412th Avenue over Mud Creek 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 July 2024.
How much traffic does 412th Avenue over Mud Creek carry?
About 69 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 412th Avenue over Mud Creek?
The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m) and a deck 31 ft wide.
Who owns 412th Avenue over Mud Creek?
It is owned by the County Highway Agency.