Dunbar RD over Calabazas Creek
Fair Condition111 years old800 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 0.1 Mi N Sylvia Drive |
| Carries | Dunbar RD |
| Crosses | Calabazas Creek |
| Coordinates | 38.38325, -122.52127 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Masonry |
| Design | Arch - Deck |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 27.6 ft (8.4 m) |
| Deck Area | 63.8 sq m |
| Main Spans | 1 |
| Year Built | 1915 (reconstructed 1940) |
Traffic
| Avg Daily Traffic | 800 (2015) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0271 |