SR 520 over 120th AVE NE
Fair Condition55 years old45,466 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 0.3 E Jct I-405 |
| Carries | SR 520 |
| Crosses | 120th AVE NE |
| Coordinates | 47.63192, -122.18136 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 392.1 ft (119.5 m) |
| Max Span | 168.0 ft (51.2 m) |
| Deck Width | 53.1 ft (16.2 m) |
| Deck Area | 1935.9 sq m |
| Main Spans | 3 |
| Year Built | 1971 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 45,466 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0009086B0000000 |