SR 520 over Lake Washington
Fair Condition10 years old28,957 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 1.5 E Jct SR 513 |
| Carries | SR 520 |
| Crosses | Lake Washington |
| Coordinates | 47.64312, -122.27398 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Other |
| Total Length | 7634.8 ft (2327.1 m) |
| Max Span | 7634.8 ft (2327.1 m) |
| Deck Width | 113.8 ft (34.7 m) |
| Deck Area | 80750.4 sq m |
| Main Spans | 1 |
| Year Built | 2016 |
Traffic
| Avg Daily Traffic | 28,957 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0018066A0000000 |