Hearn Avenue over U.s. Highway 101 & Ramps
Fair Condition69 years old5,000 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 04-son-101-18.49 |
| Carries | Hearn Avenue |
| Crosses | U.s. Highway 101 & Ramps |
| Coordinates | 38.41446, -122.71641 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 232.0 ft (70.7 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 707 sq m |
| Main Spans | 4 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 5,000 (2014) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 8 |
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 | 20 0176 |