Interstate 280 SB over State Route 92

Good Condition53 years old53,500 vehicles/day

Location

StateCalifornia
CountySan Mateo
Location04-sm-280-10.81
CarriesInterstate 280 SB
CrossesState Route 92
Coordinates37.50660, -122.33811

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length328.4 ft (100.1 m)
Max Span180.4 ft (55 m)
Deck Width69.6 ft (21.2 m)
Deck Area2122.1 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic53,500 (1998)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number35 0243L

Nearby Bridges