108th St. NE over Centennial Trail
FairSnohomish County, Washington · 0.6 W SR9 · Structure no. 086396000000000
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected March 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 112 ft
- 1 main span
- Daily traffic
- 5,481
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
108th St. NE over Centennial Trail is a prestressed concrete tee beam carrying 108th St. NE over Centennial Trail in Snohomish County, Washington. It was built in 1998, so it is 27 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 5,481 vehicles a day, roughly 14% of them trucks, projected to reach 7,500 by 2044. The structure is 112 ft (34.2 m) long and 38 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 108th St. NE over Centennial Trail built?
It was built in 1998, making it 27 years old in 2025.
What condition is 108th St. NE over Centennial Trail 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 March 2024.
How much traffic does 108th St. NE over Centennial Trail carry?
About 5,481 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is 108th St. NE over Centennial Trail?
The structure is 112 ft (34.2 m) long with a longest span of 102 ft (31.2 m) and a deck 38 ft wide.
Who owns 108th St. NE over Centennial Trail?
It is owned by the County Highway Agency.