Interstate 680 over Stone Valley Road
Fair Condition62 years old195,300 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-680-r10.37 |
| Carries | Interstate 680 |
| Crosses | Stone Valley Road |
| Coordinates | 37.85137, -122.02851 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 147.0 ft (44.8 m) |
| Max Span | 86.9 ft (26.5 m) |
| Deck Width | 182.7 ft (55.7 m) |
| Deck Area | 2495.4 sq m |
| Main Spans | 3 |
| Year Built | 1964 (reconstructed 1994) |
Traffic
| Avg Daily Traffic | 195,300 (2020) |
| Truck Traffic | 6% |
| Lanes On Bridge | 10 |
| Lanes Under Bridge | 4 |
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 0201 |