SR 20 over Higgins Slough
Good Condition60 years old13,561 vehicles/day
Location
| State | Washington |
| County | Skagit |
| Location | 0.7 E Jct SR 536 |
| Carries | SR 20 |
| Crosses | Higgins Slough |
| Coordinates | 48.44906, -122.41990 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 62.0 ft (18.9 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 215.5 sq m |
| Main Spans | 3 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 13,561 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0008044B0000000 |