Foothill Expressway Improvement Project

last updated:04/08/2021 - 15:01

Foothill Expressway Operational Improvements between El Monte Avenue and San Antonio Road Project.

Project Description

The project will widen Foothill Expressway between El Monte Avenue and San Antonio Road by adding an auxiliary lane in each direction. The project will also include intersection improvements at El Monte Avenue and San Antonio Road.

Project Features:

  •  ​Adding a second through lane on westbound El Monte Avenue while maintaining the dedicated right turn pocket.
  •  Adding a second right turn lane from southbound Foothill Expressway onto westbound El Monte Avenue.  
  • Squaring all four corners at the intersection Foothill Expressway and El Monte Avenue to improve bicycle and pedestrian safety.
  • Road widening, geometric modification, modification of traffic signals, pavement treatment,  pavement delineation, landscaping, irrigation, and other related improvements. 

Construction Schedule: April 13, 2020 to May 2021.  

 Construction updates: 4/8/2021

​Construction Activities


Remove Striping and Pavement Markings

Late-April to May 2021


Install Striping and Pavement Markings


Measure B, SB1, TDA, City of Los Altos and County Road Fund.

Community Outreach:

Los Altos BPAC: 6/28/2017
Community Meetings: 6/29/2017, 2/4/2020
VTA/County BPAC: 7/12/2017
City Council Study Session: 8/22/2017
Complete Streets Commission: 2/28/2018; 8/22/2018
City Council Meeting: 1/28/2020

Get Involved

Contact Project Manager via email at [email protected]

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Related Documents:

​Past Community Meeting:

A meeting was held on February 28, 2018 to present the updated plans.  A community me​eting was held on June 29,  2017 to present an overview of the concepts and receive​ feedback. 

​​​​​Additional Related Documents


Soil Testing Reports for Contaminated Soil and Sampling map


Soil Testing Reports for Uncontaminated Soil


Project Concept Alternatives


Project Design Plans

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