Interstate 280 SB over Westborough BLVD
Good Condition59 years old89,000 vehicles/day
Location
| State | California |
| County | San Mateo |
| Location | 04-sm-280-r22.62-ssf |
| Carries | Interstate 280 SB |
| Crosses | Westborough BLVD |
| Coordinates | 37.64510, -122.44927 |
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 | 179.1 ft (54.6 m) |
| Max Span | 96.8 ft (29.5 m) |
| Deck Width | 69.6 ft (21.2 m) |
| Deck Area | 1157.5 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 89,000 (2009) |
| Truck Traffic | 1% |
| 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 0212L |