S Ferndale DR over Swan River 102
FairLake County, Montana · 2M SE Ferndale · Structure no. L24630000+06001
- Built
- 2007
- 18 years old
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 308 ft
- 4 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
S Ferndale DR over Swan River 102 is a prestressed concrete stringer/multi-beam or girder carrying S Ferndale DR over Swan River 102 in Lake County, Montana. It was built in 2007, so it is 18 years old, younger than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 308 ft (93.9 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Ferndale DR over Swan River 102 built?
It was built in 2007, making it 18 years old in 2025.
What condition is S Ferndale DR over Swan River 102 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 November 2023.
How much traffic does S Ferndale DR over Swan River 102 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is S Ferndale DR over Swan River 102?
The structure is 308 ft (93.9 m) long with a longest span of 77 ft (23.6 m) and a deck 32 ft wide.
Who owns S Ferndale DR over Swan River 102?
It is owned by the County Highway Agency.