SR 520 over 124 Ave NE - NW Ramp
GoodKing County, Washington · 0.6 E JCT I-405 · Structure no. 0009086D0000000
- Built
- 1971
- 54 years old, rebuilt 1998
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 200 ft
- 3 main spans
- Daily traffic
- 45,466
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 520 over 124 Ave NE - NW Ramp is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 520 over 124 Ave NE - NW Ramp in King County, Washington. It was built in 1971 and reconstructed in 1998, so it is 54 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 45,466 vehicles a day, roughly 3% of them trucks, projected to reach 74,202 by 2039. The structure is 200 ft (61 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 520 over 124 Ave NE - NW Ramp built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1998.
What condition is SR 520 over 124 Ave NE - NW Ramp 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 January 2024.
How much traffic does SR 520 over 124 Ave NE - NW Ramp carry?
About 45,466 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is SR 520 over 124 Ave NE - NW Ramp?
The structure is 200 ft (61 m) long with a longest span of 80 ft (24.4 m) and a deck 60 ft wide.
Who owns SR 520 over 124 Ave NE - NW Ramp?
It is owned by the State Highway Agency.