Interstate 680 over South Mococo Drain
Good Condition64 years old105,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-680-23.99 |
| Carries | Interstate 680 |
| Crosses | South Mococo Drain |
| Coordinates | 38.02294, -122.10571 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 204.3 sq m |
| Main Spans | 2 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 105,000 (2009) |
| Lanes On Bridge | 8 |
Inspection & Ownership
| Last Inspection | 123 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0220 |