State Route 20 over Russian River Rr Calpell
Good Condition2 years old14,400 vehicles/day
Location
| State | California |
| County | Mendocino |
| Location | 01-men-020-33.62 |
| Carries | State Route 20 |
| Crosses | Russian River Rr Calpell |
| Coordinates | 39.24292, -123.20097 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 861.9 ft (262.7 m) |
| Max Span | 145.0 ft (44.2 m) |
| Deck Width | 52.8 ft (16.1 m) |
| Deck Area | 4229.5 sq m |
| Main Spans | 7 |
| Year Built | 2024 |
Traffic
| Avg Daily Traffic | 14,400 (2019) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
| Lanes Under 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 | 10 0310 |