U.s. Highway 101 over Westside RD
Poor Condition66 years old45,500 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 04-son-101-34.88 |
| Carries | U.s. Highway 101 |
| Crosses | Westside RD |
| Coordinates | 38.60716, -122.87270 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 182.1 ft (55.5 m) |
| Max Span | 91.9 ft (28 m) |
| Deck Width | 91.2 ft (27.8 m) |
| Deck Area | 1542.9 sq m |
| Main Spans | 3 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 45,500 (2017) |
| Truck Traffic | 13% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20 0147 |