State Route 121 over Huichica Creek
Good Condition4 years old27,300 vehicles/day
Location
| State | California |
| County | Napa |
| Location | 04-nap-121-0.75 |
| Carries | State Route 121 |
| Crosses | Huichica Creek |
| Coordinates | 38.25581, -122.36717 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 45.9 ft (14 m) |
| Max Span | 42.3 ft (12.9 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 187.6 sq m |
| Main Spans | 1 |
| Year Built | 2022 |
Traffic
| Avg Daily Traffic | 27,300 (2019) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 21 0118 |