Willow Creek RD over Willow Creek
Good Condition48 years old170 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 1.5 Mi E SH 1 |
| Carries | Willow Creek RD |
| Crosses | Willow Creek |
| Coordinates | 38.43572, -123.08646 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 115.8 ft (35.3 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 307.1 sq m |
| Main Spans | 4 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 170 (2010) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0387 |