Interstate 680 over Grayson Creek
Poor Condition64 years old169,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-680-20.89 |
| Carries | Interstate 680 |
| Crosses | Grayson Creek |
| Coordinates | 37.99102, -122.06739 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 326.8 ft (99.6 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 169.9 ft (51.8 m) |
| Deck Area | 5159.3 sq m |
| Main Spans | 8 |
| Year Built | 1962 (reconstructed 2005) |
Traffic
| Avg Daily Traffic | 169,000 (2018) |
| Truck Traffic | 3% |
| Lanes On Bridge | 10 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0180 |