SR 20 over Granite Creek
Good Condition55 years old1,120 vehicles/day
Location
| State | Washington |
| County | Skagit |
| Location | 2.5 E Whatcom Co |
| Carries | SR 20 |
| Crosses | Granite Creek |
| Coordinates | 48.62633, -120.84150 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 200.1 ft (61 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 658.8 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 1,120 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0008963C0000000 |