State Route 4 EB over Contra Costa Canal
Good Condition18 years old20,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-r31.27-ant |
| Carries | State Route 4 EB |
| Crosses | Contra Costa Canal |
| Coordinates | 37.98363, -121.74789 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 484.6 ft (147.7 m) |
| Max Span | 171.9 ft (52.4 m) |
| Deck Width | 57.7 ft (17.6 m) |
| Deck Area | 2599.5 sq m |
| Main Spans | 3 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 20,000 (2017) |
| Truck Traffic | 8% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0389R |