A satellite photo of Yerba Buena Island with north pointing up. The Hillcrest Road project area, which runs along Hillcrest Road from the westbound bridge on-ramp to Forest Road, is highlighted in yellow.


Led by the Transportation Authority, the Hillcrest Road Improvement Project will upgrade the roadway to modern standards and provide additional space for pedestrians and bicyclists. The project runs between the West Side Bridges Project to the west and the Southgate Road Interchange Improvement Project to the east. 

Improvements include: 

  • Removal of existing retaining walls and construction of new retaining walls (with drainage) set further into the hillside above Hillcrest Road, with design features to limit distractions for Bay Bridge drivers and to accommodate a future multi-use path
  • Curb and gutter 
  • Street and pedestrian level lighting
  • Safety guardrails 
  • Drainage facilities, striping, signage and concrete barriers throughout the project’s length.
  • Traffic signage
  • Class II bike lane


  • 2023

    Preliminary engineering and environmental approval

  • 2023 – 2024

    Final design

  • 2024 – 2027


Project Partners

  • Treasure Island Development Authority
  • San Francisco Public Works
  • US Coast Guard

Cost and Funding

The cost of the design and construction phases of the Hillcrest Road Improvement Project is $37 million. The project is funded by a grant to TIDA from the California Department of Housing and Community Development  Infill Infrastructure Grant program, Prop K Sales Tax (exchange) funds, and SB 1 Local Partnership Program formulaic funds.


Mike Tan, Senior Engineer

Public engagement

April 16, 2024 Transportation Authority Board

April 16, 2024 Transportation Authority Board presentation (PDF)

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Related programs


The Treasure Island Transportation Program will address the island's growing transportation needs with a goal to have at least 50 percent of trips made by transit instead of private vehicles.