First Street over Napa CR & River Overflow
Fair Condition21 years old5,235 vehicles/day
Location
| State | California |
| County | Napa |
| Location | Just East Of West Street |
| Carries | First Street |
| Crosses | Napa CR & River Overflow |
| Coordinates | 38.29945, -122.28483 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 344.5 ft (105 m) |
| Max Span | 114.8 ft (35 m) |
| Deck Width | 66.3 ft (20.2 m) |
| Deck Area | 2,121 sq m |
| Main Spans | 3 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 5,235 (2011) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 21C0127 |