Harbor Street over State Route 4
Fair Condition23 years old17,284 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-23.41-pit |
| Carries | Harbor Street |
| Crosses | State Route 4 |
| Coordinates | 38.01574, -121.88294 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 296.9 ft (90.5 m) |
| Max Span | 162.4 ft (49.5 m) |
| Deck Width | 84.6 ft (25.8 m) |
| Deck Area | 2334.9 sq m |
| Main Spans | 2 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 17,284 (2017) |
| Truck Traffic | 8% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 9 |
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 0385 |