State Route 1 over Russian Gulch
Fair Condition87 years old9,900 vehicles/day
Location
| State | California |
| County | Mendocino |
| Location | 01-men-001-52.64 |
| Carries | State Route 1 |
| Crosses | Russian Gulch |
| Coordinates | 39.32853, -123.80440 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 526.9 ft (160.6 m) |
| Max Span | 240.2 ft (73.2 m) |
| Deck Width | 31.5 ft (9.6 m) |
| Deck Area | 1541.8 sq m |
| Main Spans | 1 |
| Year Built | 1939 |
Traffic
| Avg Daily Traffic | 9,900 (2009) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 10 0151 |