US 101 Interchanges at Capitol Expressway and at Yerba Buena Road

HMH worked with VTA to complete the second phase of the U.S. 101 Operational Improvements between I-280/680 and Yerba Buena Road.  This project was needed for congestion relief by extending southbound mainline improvements, converting the Capitol Expressway interchange into a partial cloverleaf, and adding ramp improvements at Yerba Buena Road.

HMH provided enhanced intersection designs to improve safety for pedestrians and bicyclists.  Staff worked with Caltrans, VTA and Santa Clara County Roads &  Airports Department representatives to incorporate the following public improvements into the project:  pedestrian refuges, curb return bulb-outs, widened bike lanes and enhanced sidewalks.  The ramp terminus intersections have also been carefully designed to limit turning radii and reduce the fastest path of vehicles crossing pedestrian crosswalks, while still accommodating truck turns for STAA (Surface Transportation Assistance Act) vehicles.

VTA reconstructed wider sidewalks on the existing overcrossings and took advantage of the opportunity to replace the bridge railing with unique aesthetic treatments consistent with the Tully Road interchange.  Replacement planting was done within the interchange, along with street trees on widened sidewalks to improve the pedestrian experience.

HMH services included supplemental surveys using convention and 3-D laser scanning equipment, preparation of mandatory and advisory design exception fact sheets and geometric approval drawings.  HMH complied with VTA Quality Assurance procedures and met the schedule, budget and SBE participation requirements.


  • Transportation Planning
  • Civil Engineering
  • Land Surveying
  • Landscape Architecture
  • Stormwater Compliance


San Jose, CA



Key Facts

  • Client: VTA
  • Direct involvement in developing advanced designs for ramp terminus intersections to improve safety for bicyclists and pedestrians exceptions to Caltrans standards
  • Continued implementation of context sensitive theme and replacement landscaping for both Tully Road & Capitol Expwy interchanges

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