Sand Hill Road (n) over Interstate 280

Fair Condition57 years old13,000 vehicles/day

Location

StateCalifornia
CountySan Mateo
Location04-sm-280-r1.61
CarriesSand Hill Road (n)
CrossesInterstate 280
Coordinates37.41882, -122.22061

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure5 (Fair)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length539.0 ft (164.3 m)
Max Span154.2 ft (47 m)
Deck Width38.7 ft (11.8 m)
Deck Area1938.7 sq m
Main Spans4
Year Built1969

Traffic

Avg Daily Traffic13,000 (1998)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge12

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number35 0008

Nearby Bridges

Sand Hill Road (s) over Interstate 280 0.1 mi Fair Interstate 280 over Stanford Linear Accel 0.6 mi Fair Sand Hill RD over Bear Gulch Creek 1.3 mi Fair Interstate 280 SB over San Francisquito Creek 1.3 mi Poor Interstate 280 NB over San Francisquito Creek 1.3 mi Poor Alpine RD over San Francisquito Creek 1.5 mi Fair I-280 NB Offramp over Los Trancos Creek 1.6 mi Fair I-280 Northbound over Alpine RD & Los Trancos 1.6 mi Poor I-280 Southbound over Alpine RD & Los Trancos 1.6 mi Fair I-280 SB Onramp over Los Trancos Creek 1.6 mi Good