SR 99 over Terrain
Good Condition15 years old28,886 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 3.3 N Jct SR 509 |
| Carries | SR 99 |
| Crosses | Terrain |
| Coordinates | 47.58861, -122.33806 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 951.1 ft (289.9 m) |
| Max Span | 149.9 ft (45.7 m) |
| Deck Width | 58.1 ft (17.7 m) |
| Deck Area | 5131.2 sq m |
| Main Spans | 7 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 28,886 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0017847B0000000 |