State Route 1 NB over Interstate 280
Good Condition59 years old32,500 vehicles/day
Location
| State | California |
| County | San Mateo |
| Location | 04-sm-001-r47.76-dlc |
| Carries | State Route 1 NB |
| Crosses | Interstate 280 |
| Coordinates | 37.67724, -122.47166 |
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 | 447.2 ft (136.3 m) |
| Max Span | 158.1 ft (48.2 m) |
| Deck Width | 52.5 ft (16 m) |
| Deck Area | 2180.8 sq m |
| Main Spans | 4 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 32,500 (2009) |
| Truck Traffic | 2% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 9 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 35 0180R |