State Route 1 over Russian Gulch
Fair Condition86 years old2,225 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 04-son-001-24.50 |
| Carries | State Route 1 |
| Crosses | Russian Gulch |
| Coordinates | 38.47067, -123.15360 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 105.0 ft (32 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 300.8 sq m |
| Main Spans | 3 |
| Year Built | 1940 |
Traffic
| Avg Daily Traffic | 2,225 (2016) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20 0070 |