State Route 29 over Nvrr Napa River Stanly
Poor Condition49 years old48,000 vehicles/day
Location
| State | California |
| County | Napa |
| Location | 04-nap-029-r6.99 |
| Carries | State Route 29 |
| Crosses | Nvrr Napa River Stanly |
| Coordinates | 38.24367, -122.28330 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 2230.0 ft (679.7 m) |
| Max Span | 250.0 ft (76.2 m) |
| Deck Width | 67.9 ft (20.7 m) |
| Deck Area | 14069.8 sq m |
| Main Spans | 13 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 48,000 (2017) |
| Truck Traffic | 9% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 21 0049 |