SR 18 E-n Ramp over I-5 SR 18 Ramps
Fair Condition14 years old15,430 vehicles/day
Location
| State | Washington |
| County | King |
| Location | Jct I-5 |
| Carries | SR 18 E-n Ramp |
| Crosses | I-5 SR 18 Ramps |
| Coordinates | 47.28811, -122.30808 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Box Beam - Single/Spread |
| Total Length | 1449.1 ft (441.7 m) |
| Max Span | 186.0 ft (56.7 m) |
| Deck Width | 28.9 ft (8.8 m) |
| Deck Area | 3887.0 sq m |
| Main Spans | 4 |
| Year Built | 2012 |
Traffic
| Avg Daily Traffic | 15,430 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 1 |
| Lanes Under Bridge | 17 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0017936A0000000 |