Interstate 980 over 27th Northgate Sycamore
Good Condition57 years old57,500 vehicles/day
Location
| State | California |
| County | Alameda |
| Location | 04-ala-980-1.40-oak |
| Carries | Interstate 980 |
| Crosses | 27th Northgate Sycamore |
| Coordinates | 37.81534, -122.27108 |
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 | 659.1 ft (200.9 m) |
| Max Span | 115.2 ft (35.1 m) |
| Deck Width | 81.0 ft (24.7 m) |
| Deck Area | 4962.2 sq m |
| Main Spans | 9 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 57,500 (2012) |
| Truck Traffic | 3% |
| Lanes On Bridge | 5 |
| Lanes Under Bridge | 10 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 33 0421L |