SR 529 over Union Sl
Poor Condition99 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 | 48.03086, -122.18383 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 581.0 ft (177.1 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 1664.7 sq m |
| Main Spans | 12 |
| Year Built | 1927 |
Traffic
| Avg Daily Traffic | 16,439 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
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 | 0000965B0000000 |