I-5 over Lake Wash Ship Canal
Fair Condition64 years old90,986 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 0.7 N Jct SR 520 |
| Carries | I-5 |
| Crosses | Lake Wash Ship Canal |
| Coordinates | 47.64630, -122.32246 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Deck |
| Total Length | 4429.1 ft (1,350 m) |
| Max Span | 551.8 ft (168.2 m) |
| Deck Width | 182.1 ft (55.5 m) |
| Deck Area | 74,925 sq m |
| Main Spans | 6 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 90,986 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 12 |
| Lanes Under Bridge | 14 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 0006080A0000000 |