406th Avenue over Firesteel Ck
FairDavison County, South Dakota · 1.7 S & 1 E Loomis · Structure no. 000000018120057
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
406th Avenue over Firesteel Ck is a prestressed concrete tee beam carrying 406th Avenue over Firesteel Ck in Davison County, South Dakota. It was built in 1975, so it is 50 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, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 151 ft (46 m) long and 30 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 406th Avenue over Firesteel Ck built?
It was built in 1975, making it 50 years old in 2025.
What condition is 406th Avenue over Firesteel 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 July 2024.
How much traffic does 406th Avenue over Firesteel Ck carry?
About 35 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 406th Avenue over Firesteel Ck?
The structure is 151 ft (46 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.
Who owns 406th Avenue over Firesteel Ck?
It is owned by the County Highway Agency.