I-90 Ramp over W Lake Sammamish PKWY
Fair Condition54 years old2,956 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 3.7 E Jct I-405 |
| Carries | I-90 Ramp |
| Crosses | W Lake Sammamish PKWY |
| Coordinates | 47.56497, -122.09969 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 362.9 ft (110.6 m) |
| Max Span | 136.2 ft (41.5 m) |
| Deck Width | 29.5 ft (9 m) |
| Deck Area | 995.4 sq m |
| Main Spans | 3 |
| Year Built | 1972 (reconstructed 2009) |
Traffic
| Avg Daily Traffic | 2,956 (2019) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
| Lanes Under Bridge | 5 |
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 | 0009133C0000000 |