39470 274 ST over Choteau Ck
FairPosted for loadDouglas County, South Dakota · 5.6N 2.7E of Armour · Structure no. 000000022207064
- Built
- 1937
- 88 years old
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 71 ft
- 4 main spans
- Daily traffic
- 25
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
39470 274 ST over Choteau Ck is a concrete continuous slab carrying 39470 274 ST over Choteau Ck in Douglas County, South Dakota. It was built in 1937, so it is 88 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: posted for load restriction.
It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 71 ft (21.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 39470 274 ST over Choteau Ck built?
It was built in 1937, making it 88 years old in 2025.
What condition is 39470 274 ST over Choteau 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 September 2023.
How much traffic does 39470 274 ST over Choteau Ck carry?
About 25 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 39470 274 ST over Choteau Ck?
The structure is 71 ft (21.5 m) long with a longest span of 16 ft (4.9 m) and a deck 28 ft wide.
Who owns 39470 274 ST over Choteau Ck?
It is owned by the County Highway Agency.