SR 20 over Higgins Slough
Good Condition58 years old14,588 vehicles/day
Location
| State | Washington |
| County | Skagit |
| Location | 2.2 E Jct SR 536 |
| Carries | SR 20 |
| Crosses | Higgins Slough |
| Coordinates | 48.45525, -122.38883 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 71.9 ft (21.9 m) |
| Max Span | 25.6 ft (7.8 m) |
| Deck Width | 43.6 ft (13.3 m) |
| Deck Area | 291.3 sq m |
| Main Spans | 3 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 14,588 (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 | 0008453B0000000 |