WB Route 4 Offramp over Somersville Road
Good Condition14 years old20,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-26.01-ant |
| Carries | WB Route 4 Offramp |
| Crosses | Somersville Road |
| Coordinates | 38.00418, -121.83753 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 224.7 ft (68.5 m) |
| Max Span | 118.4 ft (36.1 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 561.7 sq m |
| Main Spans | 2 |
| Year Built | 2012 |
Traffic
| Avg Daily Traffic | 20,000 (2017) |
| Truck Traffic | 8% |
| Lanes On Bridge | 1 |
| Lanes Under Bridge | 8 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0398K |