WB SR 18 To 304th over Soosette Creek
Good Condition29 years old3,899 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 4.7 E Jct SR 164 |
| Carries | WB SR 18 To 304th |
| Crosses | Soosette Creek |
| Coordinates | 47.33210, -122.15680 |
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 | 390.1 ft (118.9 m) |
| Max Span | 125.7 ft (38.3 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 1022.5 sq m |
| Main Spans | 3 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 3,899 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 0014776D0000000 |