Trancas ST over Milliken Creek
Fair Condition118 years old3,000 vehicles/day
Location
| State | California |
| County | Napa |
| Location | Just West Of SR 121 |
| Carries | Trancas ST |
| Crosses | Milliken Creek |
| Coordinates | 38.32512, -122.27496 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Masonry |
| Design | Arch - Deck |
| Total Length | 169.0 ft (51.5 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 375.9 sq m |
| Main Spans | 5 |
| Year Built | 1908 |
Traffic
| Avg Daily Traffic | 3,000 (2002) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 21C0051 |