Interstate 280 SB over Avalon Drive
Poor Condition55 years old50,500 vehicles/day
Location
| State | California |
| County | San Mateo |
| Location | 04-sm-280-r22.04-ssf |
| Carries | Interstate 280 SB |
| Crosses | Avalon Drive |
| Coordinates | 37.63942, -122.44184 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 148.0 ft (45.1 m) |
| Max Span | 83.0 ft (25.3 m) |
| Deck Width | 69.6 ft (21.2 m) |
| Deck Area | 956.1 sq m |
| Main Spans | 2 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 50,500 (2009) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 5 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 35 0228L |