I-405 over Green River
Fair Condition62 years old77,251 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 0.9 N Jct I-5 |
| Carries | I-405 |
| Crosses | Green River |
| Coordinates | 47.46261, -122.24914 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 245.1 ft (74.7 m) |
| Max Span | 109.6 ft (33.4 m) |
| Deck Width | 160.4 ft (48.9 m) |
| Deck Area | 3652.8 sq m |
| Main Spans | 3 |
| Year Built | 1964 (reconstructed 1988) |
Traffic
| Avg Daily Traffic | 77,251 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 10 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0007249B0000000 |