Interstate 280 over Hillside
Good Condition32 years old101,000 vehicles/day
Location
| State | California |
| County | San Mateo |
| Location | 04-sm-280-r21.55 |
| Carries | Interstate 280 |
| Crosses | Hillside |
| Coordinates | 37.63221, -122.43675 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 2134.5 ft (650.6 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 9.8 ft (3 m) |
| Deck Area | 1951.8 sq m |
| Main Spans | 49 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 101,000 (2009) |
| Truck Traffic | 2% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 35 0320 |