Bison Lane over French Ck
FairCuster County, South Dakota · 11E 2S Fairburn · Structure no. 000000017540147
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 12
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Bison Lane over French Ck is a concrete stringer/multi-beam or girder carrying Bison Lane over French Ck in Custer 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 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 12 vehicles a day, roughly 2% of them trucks, projected to reach 12 by 2032. The structure is 25 ft (7.6 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bison Lane over French Ck built?
It was built in 1974, making it 51 years old in 2025.
What condition is Bison Lane over French 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 April 2023.
How much traffic does Bison Lane over French Ck carry?
About 12 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Bison Lane over French Ck?
The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 19 ft wide.
Who owns Bison Lane over French Ck?
It is owned by the County Highway Agency.