I-405 over May Creek
Good Condition68 years old74,980 vehicles/day
Location
| State | Washington |
| County | King |
| Location | 1.8 N Jct SR 900 |
| Carries | I-405 |
| Crosses | May Creek |
| Coordinates | 47.52797, -122.19776 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 169.0 ft (51.5 m) |
| Max Span | 65.9 ft (20.1 m) |
| Deck Width | 79.4 ft (24.2 m) |
| Deck Area | 1246.3 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 74,980 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0005347C0000000 |