State Route 1 over Big River
Fair Condition65 years old6,300 vehicles/day
Location
| State | California |
| County | Mendocino |
| Location | 01-men-001-50.17 |
| Carries | State Route 1 |
| Crosses | Big River |
| Coordinates | 39.30114, -123.79244 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 508.9 ft (155.1 m) |
| Max Span | 190.9 ft (58.2 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 1644.1 sq m |
| Main Spans | 3 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 6,300 (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 not eligible for the National Register |
| Structure Number | 10 0146 |