SR 20 over Swift Creek
Good Condition71 years old2,492 vehicles/day
Location
| State | Washington |
| County | Skagit |
| Location | 2.0 E Jct SR 530 |
| Carries | SR 20 |
| Crosses | Swift Creek |
| Coordinates | 48.49243, -121.55021 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 31.5 ft (9.6 m) |
| Deck Area | 234.2 sq m |
| Main Spans | 3 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 2,492 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 421 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0005051A0000000 |