I-405 over Damson RD
Fair Condition58 years old61,143 vehicles/day
Location
| State | Washington |
| County | Snohomish |
| Location | 2.2 N Jct SR 527 |
| Carries | I-405 |
| Crosses | Damson RD |
| Coordinates | 47.81989, -122.24222 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 187.0 ft (57 m) |
| Max Span | 70.9 ft (21.6 m) |
| Deck Width | 69.6 ft (21.2 m) |
| Deck Area | 1208.4 sq m |
| Main Spans | 3 |
| Year Built | 1968 (reconstructed 2001) |
Traffic
| Avg Daily Traffic | 61,143 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0008417D0000000 |