SR 529 over Union Sl
Poor Condition72 years old16,439 vehicles/day
Location
| State | Washington |
| County | Snohomish |
| Location | 5.9 N Jct SR 529 Spur |
| Carries | SR 529 |
| Crosses | Union Sl |
| Coordinates | 48.03047, -122.18297 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 632.9 ft (192.9 m) |
| Max Span | 62.0 ft (18.9 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 2083.3 sq m |
| Main Spans | 12 |
| Year Built | 1954 |
Traffic
| Avg Daily Traffic | 16,439 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0004562A0000000 |