Woodinville Duvall over Duvall Slough
FairKing County, Washington · 0.4 MI W of SR-203 · Structure no. 081803000000000
- Built
- 1948
- 77 years old
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 639 ft
- 29 main spans
- Daily traffic
- 10,564
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Woodinville Duvall over Duvall Slough is a concrete continuous slab carrying Woodinville Duvall over Duvall Slough in King County, Washington. It was built in 1948, so it is 77 years old, older 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 10,564 vehicles a day, roughly 10% of them trucks, projected to reach 15,000 by 2039. The structure is 639 ft (194.8 m) long and 27 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Woodinville Duvall over Duvall Slough built?
It was built in 1948, making it 77 years old in 2025.
What condition is Woodinville Duvall over Duvall Slough 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 June 2024.
How much traffic does Woodinville Duvall over Duvall Slough carry?
About 10,564 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is Woodinville Duvall over Duvall Slough?
The structure is 639 ft (194.8 m) long with a longest span of 32 ft (9.8 m) and a deck 27 ft wide.
Who owns Woodinville Duvall over Duvall Slough?
It is owned by the County Highway Agency.