30090 401st Avenue over Choteau Creek
FairPosted for loadCharles Mix County, South Dakota · 0.9S & 1.0E of Dante · Structure no. 000000012570329
- Built
- 1925
- 100 years old, rebuilt 1975
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 31 ft
- 1 main span
- Daily traffic
- 48
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
30090 401st Avenue over Choteau Creek is a steel stringer/multi-beam or girder carrying 30090 401st Avenue over Choteau Creek in Charles Mix County, South Dakota. It was built in 1925 and reconstructed in 1975, so it is 100 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 5 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 48 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2032. The structure is 31 ft (9.3 m) long and 25 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 30090 401st Avenue over Choteau Creek built?
It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1975.
What condition is 30090 401st Avenue over Choteau 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 September 2023.
How much traffic does 30090 401st Avenue over Choteau Creek carry?
About 48 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 30090 401st Avenue over Choteau Creek?
The structure is 31 ft (9.3 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.
Who owns 30090 401st Avenue over Choteau Creek?
It is owned by the County Highway Agency.