State Route 29 over American Canyon Creek
Fair Condition83 years old48,000 vehicles/day
Location
| State | California |
| County | Napa |
| Location | 04-nap-029-0.56 |
| Carries | State Route 29 |
| Crosses | American Canyon Creek |
| Coordinates | 38.16329, -122.25286 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 205.1 sq m |
| Main Spans | 2 |
| Year Built | 1943 (reconstructed 1970) |
Traffic
| Avg Daily Traffic | 48,000 (2017) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 21 0040 |