SR 18 Westbound over Soosette Creek
Good Condition29 years old28,147 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 4.7 E Jct SR 164 |
| Carries | SR 18 Westbound |
| Crosses | Soosette Creek |
| Coordinates | 47.33195, -122.15641 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 9 — Foundation above flood level |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 359.9 ft (109.7 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 1360.3 sq m |
| Main Spans | 3 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 28,147 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0014776B0000000 |