148th AVE over SR 520
Fair Condition45 years old46,948 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 2.3 E Jct I-405 |
| Carries | 148th AVE |
| Crosses | SR 520 |
| Coordinates | 47.63400, -122.14308 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 325.1 ft (99.1 m) |
| Max Span | 168.0 ft (51.2 m) |
| Deck Width | 61.4 ft (18.7 m) |
| Deck Area | 1853.2 sq m |
| Main Spans | 2 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 46,948 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 9 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0011764A0000000 |