West Boundary Road over Salmon River
FairJefferson County, Washington · 4.4 MI North of HWY 101 · Structure no. 060903000001002
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected August 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 186 ft
- 2 main spans
- Daily traffic
- 50
- 2006 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
West Boundary Road over Salmon River is a prestressed concrete stringer/multi-beam or girder carrying West Boundary Road over Salmon River in Jefferson County, Washington. It was built in 1979, so it is 46 years old, younger than the Washington average of 49.8 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 186 ft (56.7 m) long and 31 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 West Boundary Road over Salmon River built?
It was built in 1979, making it 46 years old in 2025.
What condition is West Boundary Road over Salmon River 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 August 2021.
How much traffic does West Boundary Road over Salmon River carry?
About 50 vehicles per day (2006 count).
How long is West Boundary Road over Salmon River?
The structure is 186 ft (56.7 m) long with a longest span of 94 ft (28.7 m) and a deck 31 ft wide.
Who owns West Boundary Road over Salmon River?
It is owned by the U.S. Forest Service.