SR 522 Ramp over Sammamish River
FairKing County, Washington · 1.3 E JCT SR 527 · Structure no. 0008382F0000000
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 303 ft
- 4 main spans
- Daily traffic
- 10,166
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 522 Ramp over Sammamish River is a concrete continuous box beam or girders - multiple carrying SR 522 Ramp over Sammamish River in King County, Washington. It was built in 1968, so it is 57 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 10,166 vehicles a day, roughly 5% of them trucks, projected to reach 14,194 by 2039. The structure is 303 ft (92.4 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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 SR 522 Ramp over Sammamish River built?
It was built in 1968, making it 57 years old in 2025.
What condition is SR 522 Ramp over Sammamish 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 September 2024.
How much traffic does SR 522 Ramp over Sammamish River carry?
About 10,166 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is SR 522 Ramp over Sammamish River?
The structure is 303 ft (92.4 m) long with a longest span of 103 ft (31.4 m) and a deck 39 ft wide.
Who owns SR 522 Ramp over Sammamish River?
It is owned by the State Highway Agency.