Oak Knoll AVE over Napa River Overflow
Fair Condition116 years old2,600 vehicles/day
Location
| State | California |
| County | Napa |
| Location | 300 W Silverado Trail |
| Carries | Oak Knoll AVE |
| Crosses | Napa River Overflow |
| Coordinates | 38.36913, -122.30211 |
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 | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 23.6 ft (7.2 m) |
| Deck Area | 44.6 sq m |
| Main Spans | 1 |
| Year Built | 1910 |
Traffic
| Avg Daily Traffic | 2,600 (2005) |
| Truck Traffic | 10% |
| 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 | 21C0104 |