State Route 4 WB over Port Chicago HWY
Fair Condition50 years old73,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-r15.42-cnd |
| Carries | State Route 4 WB |
| Crosses | Port Chicago HWY |
| Coordinates | 38.00976, -122.02318 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 227.0 ft (69.2 m) |
| Max Span | 189.0 ft (57.6 m) |
| Deck Width | 77.8 ft (23.7 m) |
| Deck Area | 1640.0 sq m |
| Main Spans | 1 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 73,000 (2017) |
| Truck Traffic | 7% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 5 |
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 0244L |