I-405 over I-5
Good Condition45 years old17,871 vehicles/day
Location
| State | Washington |
| County | Snohomish |
| Location | 3.3 N Jct SR 527 |
| Carries | I-405 |
| Crosses | I-5 |
| Coordinates | 47.83133, -122.26156 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 560.0 ft (170.7 m) |
| Max Span | 165.0 ft (50.3 m) |
| Deck Width | 55.1 ft (16.8 m) |
| Deck Area | 2867.8 sq m |
| Main Spans | 4 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 17,871 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 11 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0011855A0000000 |