SR 9 over Harts Slough
Fair Condition67 years old11,660 vehicles/day
Location
| State | Washington |
| County | Skagit |
| Location | 4.9 N Jct SR 538 |
| Carries | SR 9 |
| Crosses | Harts Slough |
| Coordinates | 48.48819, -122.24522 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 206.0 ft (62.8 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 672.0 sq m |
| Main Spans | 9 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 11,660 (2023) |
| Truck Traffic | 5% |
| 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 | 0006000A0000000 |