SR 12 over Purple Draw
Good Condition31 years old23,050 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 04-son-012-9.84 |
| Carries | SR 12 |
| Crosses | Purple Draw |
| Coordinates | 38.40439, -122.81331 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 28.2 ft (8.6 m) |
| Deck Width | 56.4 ft (17.2 m) |
| Deck Area | 156.5 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 23,050 (2014) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 622 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20 0275 |