Alcosta Boulevard over Interstate 680
Good Condition61 years old23,975 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-680-r0.01-srmn |
| Carries | Alcosta Boulevard |
| Crosses | Interstate 680 |
| Coordinates | 37.72332, -121.94051 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 240.2 ft (73.2 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 82.0 ft (25 m) |
| Deck Area | 1,830 sq m |
| Main Spans | 4 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 23,975 (1998) |
| Truck Traffic | 3% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 9 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0210 |