SR 520 N-e Ramp over W L Sammamish Pkwy/river
Good Condition16 years old4,606 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 4.9 E Jct I-405 |
| Carries | SR 520 N-e Ramp |
| Crosses | W L Sammamish Pkwy/river |
| Coordinates | 47.66684, -122.12739 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 376.3 ft (114.7 m) |
| Max Span | 119.8 ft (36.5 m) |
| Deck Width | 29.5 ft (9 m) |
| Deck Area | 1032.3 sq m |
| Main Spans | 4 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 4,606 (2012) |
| Truck Traffic | 3% |
| Lanes On Bridge | 1 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0017637B0000000 |