US Highway 101 over Washington Street Creek
Fair Condition71 years old43,000 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 04-son-101-4.77-pet |
| Carries | US Highway 101 |
| Crosses | Washington Street Creek |
| Coordinates | 38.24693, -122.62796 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 142.7 ft (43.5 m) |
| Deck Area | 887.4 sq m |
| Main Spans | 3 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 43,000 (2016) |
| Truck Traffic | 8% |
| Lanes On Bridge | 7 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20 0163 |