Waynita Drive NE over Sammamish River
GoodKing County, Washington · 0.3 S SR 522 · Structure no. 085075000000000
- Built
- 1947
- 78 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 160 ft
- 4 main spans
- Daily traffic
- 9,869
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Waynita Drive NE over Sammamish River is a steel stringer/multi-beam or girder carrying Waynita Drive NE over Sammamish River in King County, Washington. It was built in 1947, so it is 78 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,869 vehicles a day, roughly 6% of them trucks, projected to reach 16,000 by 2040. The structure is 160 ft (48.8 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Waynita Drive NE over Sammamish River built?
It was built in 1947, making it 78 years old in 2025.
What condition is Waynita Drive NE over Sammamish River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does Waynita Drive NE over Sammamish River carry?
About 9,869 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is Waynita Drive NE over Sammamish River?
The structure is 160 ft (48.8 m) long with a longest span of 60 ft (18.3 m) and a deck 34 ft wide.
Who owns Waynita Drive NE over Sammamish River?
It is owned by the City or Municipal Highway Agency.