Petaluma Hill RD over Lichau Creek
Good Condition106 years old10,600 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 0.1 Mi N Jct Old Rdw HWY |
| Carries | Petaluma Hill RD |
| Crosses | Lichau Creek |
| Coordinates | 38.29607, -122.66638 |
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 | Tee Beam |
| Total Length | 48.9 ft (14.9 m) |
| Max Span | 16.1 ft (4.9 m) |
| Deck Width | 41.3 ft (12.6 m) |
| Deck Area | 187.7 sq m |
| Main Spans | 3 |
| Year Built | 1920 (reconstructed 1976) |
Traffic
| Avg Daily Traffic | 10,600 (2015) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0129 |