SB Airport Expy over S 170th ST
Fair Condition54 years old45,000 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 1 Mi S Of SR 518 |
| Carries | SB Airport Expy |
| Crosses | S 170th ST |
| Coordinates | 47.45068, -122.30062 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 148.0 ft (45.1 m) |
| Max Span | 98.1 ft (29.9 m) |
| Deck Width | 71.2 ft (21.7 m) |
| Deck Area | 978.7 sq m |
| Main Spans | 3 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 45,000 (2016) |
| Truck Traffic | 12% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | Other Local Agencies |
| Historical Significance | Historical significance is not determined |
| Structure Number | 085812000000000 |