US012 over Snake Ck
FairBrown County, South Dakota · 0.1 E Edmunds CO Line · Structure no. 000000007001346
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 145 ft
- 3 main spans
- Daily traffic
- 2,736
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US012 over Snake Ck is a steel continuous stringer/multi-beam or girder carrying US012 over Snake Ck in Brown County, South Dakota. It was built in 1970, so it is 55 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 2,736 vehicles a day, roughly 21% of them trucks, projected to reach 3,617 by 2044. The structure is 145 ft (44.2 m) long and 47 ft wide. If it were closed, the detour would be 39.1 mi (63 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 US012 over Snake Ck built?
It was built in 1970, making it 55 years old in 2025.
What condition is US012 over Snake 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 US012 over Snake Ck carry?
About 2,736 vehicles per day (2024 count), of which roughly 21% are trucks.
How long is US012 over Snake Ck?
The structure is 145 ft (44.2 m) long with a longest span of 55 ft (16.8 m) and a deck 47 ft wide.
Who owns US012 over Snake Ck?
It is owned by the State Highway Agency.