US 101/Peninsula Avenue Interchange Project

Current News

On Jan. 27, 2021, our Public Works staff presented at a virtual community meeting to inform our residents about the current status of this project. 

You can view the meeting (video on page) or read the PowerPoint presentation and share any comments you might have on our online platform.

PLEASE NOTE: While comments are welcome anytime, only comments received during the environmental studies phase will be part of the project record and responded to by the project team.

Project Description

We are proposing to relocate the existing U.S. Hwy 101 southbound on- and off-ramps from East Poplar Avenue to Peninsula Avenue in order to create a single, full-access interchange at Peninsula Avenue and Airport Boulevard. This would improve safety and traffic operations as well as reduce most typical travel times within the Peninsula Avenue interchange area for residents of both San Mateo and Burlingame.

The project would also provide bicycle and pedestrian improvements on Peninsula Avenue from just west of North Humboldt Street to North Bayshore Boulevard. 

 The project is currently in the planning stages.

Project Timeline

  • January 2021 – Meetings with property/business owners and the community
  • Spring 2021 – Begin environmental studies phase and hold project scoping meeting (receive formal public comments)
  • End of 2021/Early 2022 – Complete draft environmental document (receive formal public comments)
  • May 2022 – Finalize environmental document and determine next steps for project. 
  • Potential next steps include right-of-way acquisition and project design. These cannot begin prior to completion of the environmental document and project approval. 

What's Coming Up  

Our next steps are to complete the remaining environmental studies for the project. The environmental process provides formal opportunities to submit comments and questions about the project. While comments are welcome anytime, only comments received during the environmental studies phase will be part of the project record and responded to by the project team.