40120 302nd Street over Choteau Creek
FairCharles Mix County, South Dakota · 2.0S & 1.2E of Dante · Structure no. 000000012572340
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 102
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
40120 302nd Street over Choteau Creek is a prestressed concrete tee beam carrying 40120 302nd Street over Choteau Creek in Charles Mix County, South Dakota. It was built in 1974, so it is 51 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.
It carries about 102 vehicles a day, roughly 2% of them trucks, projected to reach 102 by 2032. The structure is 100 ft (30.5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 40120 302nd Street over Choteau Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is 40120 302nd Street 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 40120 302nd Street over Choteau Creek carry?
About 102 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 40120 302nd Street over Choteau Creek?
The structure is 100 ft (30.5 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.
Who owns 40120 302nd Street over Choteau Creek?
It is owned by the County Highway Agency.