Silicon Valley Express Lanes (SVEL) Phase 3 & 4

In 2008, the VTA Board of Directors approved the Silicon Valley Express Lanes (SVEL) Program which included 4 phases of the implementation of express lanes along SR 237/I-880 and US 101/SR 85. With a forecasted 38% growth in population and a 62% increase in jobs between 2010 and 2040, the program’s long term goal was to manage and relieve congestion along the corridors and tie into San Mateo County’s express lanes. The projects would also provide a more efficient use of existing roadways, a new and reliable travel option, and a new revenue stream for transportation and corridor improvements.

The HMH public works team completed SVEL phase 3 which was a conversion of the existing HOV lanes to Express lanes along US 101 from SR 237 to the San Mateo County line in addition to the SR 85 connectors to US 101 in Mountain View. Phase 4 is expected to be kicked off in late 2019 and will convert the existing HOV lanes along SR 85 from the SR 87 to the US 101 connector in south San Jose. US 101 is an important trade corridor between the Central Valley, Central Coast, and the San Francisco Bay Area while SR 85 is a popular connection for commuters from San Jose, Los Gatos, Cupertino, Saratoga, Campbell, Sunnyvale, Los Altos, and Mountain View. HMH was responsible for the utility coordination and design, the drainage design, and led the development of motorist information plans for the phase 3 final construction document package; similar scope is expected on
phase 4.


  • Civil Engineering


Santa Clara County


2016 - Present

Key Facts

  • Client: VTA
  • HOV conversion to Express Lanes
  • Design interface with System Integrator through separate contract
  • Obtained approval of significant portions of non-standard mainline shoulders
  • Corridor-wide safety assessment

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