I 280 N Al Line over 280/101 Interchange
Poor Condition66 years old170,000 vehicles/day
Location
| State | California |
| County | San Francisco |
| Location | 04-sf-280-r4.16r-sf |
| Carries | I 280 N Al Line |
| Crosses | 280/101 Interchange |
| Coordinates | 37.73412, -122.40966 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 1140.1 ft (347.5 m) |
| Max Span | 99.1 ft (30.2 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 3961.5 sq m |
| Main Spans | 13 |
| Year Built | 1960 (reconstructed 1996) |
Traffic
| Avg Daily Traffic | 170,000 (2019) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 16 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 34 0132R |