SR 99 over SR 509
Good Condition4 years old12,230 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 1.6 N Jct SR 516 |
| Carries | SR 99 |
| Crosses | SR 509 |
| Coordinates | 47.41591, -122.29714 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 256.9 ft (78.3 m) |
| Max Span | 149.0 ft (45.4 m) |
| Deck Width | 91.9 ft (28 m) |
| Deck Area | 2192.4 sq m |
| Main Spans | 2 |
| Year Built | 2022 |
Traffic
| Avg Daily Traffic | 12,230 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 002005430000000 |