I-90 over W Lake Sammamish PKWY
Fair Condition54 years old56,289 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 3.7 E Jct I-405 |
| Carries | I-90 |
| Crosses | W Lake Sammamish PKWY |
| Coordinates | 47.56572, -122.09978 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 341.9 ft (104.2 m) |
| Max Span | 174.9 ft (53.3 m) |
| Deck Width | 71.5 ft (21.8 m) |
| Deck Area | 2271.6 sq m |
| Main Spans | 3 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 56,289 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0009133B0000000 |