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Bayshore Boulevard Quick-Build Project
Project Introduction

In 2017 the SFMTA and San Francisco Public Works developed and implemented safety improvements at three segments located near the southeastern entrance to the Bayshore Boulevard/Cesar Chavez Street /Potrero Avenue Intersection (known as the Hairball). Improvements include bicycle and pedestrian safety upgrades to northbound Bayshore Boulevard from Jerrold Avenue to Marin Street as well as improvements to the Bayshore Boulevard and Jerrold Avenue and Bayshore Boulevard and Marin Street intersections. Additional improvements to the southwestern segments of the Hairball were implemented in 2021 that include widening and resurfacing the entry ramp at westbound Cesar Chavez Street, widening the eastbound shared bike/pedestrian path, installing new green buffer and retaining walls and regrading the pathway. The SFMTA is currently undertaking another series of spot improvements to address these safety issues, specifically at Bayshore Boulevard/Marin Street, and Cesar Chavez east at the U.S. Highway 101 north on ramp. The Bayshore Quick-Build Project will ensure safe and accessible bike and pedestrian connections to and from the Hairball.

Bayshore Boulevard is a north-south roadway that extends from Cesar Chavez Street in San Francisco to Airport Boulevard in South San Francisco and generally parallels U.S. Highway 101. The Bayshore Quick-Build Project area consists of Bayshore Boulevard between Oakdale and Silver avenues. The project area is in the Bayview neighborhood and adjacent to the Bernal Heights neighborhood. The corridor is home to commercial retail, light and heavy industrial, and city department activities. 

There are generally three northbound and southbound travel lanes and on-street parking is available on both sides of Bayshore Boulevard between Oakdale and Industrial. In addition, Bayshore Boulevard has a center two-way turn lane, that allows for left-turns for both northbound and southbound traffic.

The 9 Bayshore and 9R Bayshore Rapid Muni bus routes serve this corridor and connect to additional Muni lines such as: 24 Divisadero, 23 Monterey, 44 O’Shaughnessy and 90 San Bruno Owl. The SamTrans 292 San Francisco – SFO – Hillsdale Mall and SamTrans 397 All Nighter Palo Alto Station – San Francisco Salesforce Transit Center bus routes also pick up passengers on Bayshore between Bayshore/Silver and Bayshore/Flower. Northbound and southbound buffered bike lanes exist on Bayshore between Cortland and Oakdale avenues and include Muni boarding island protected bike lanes on the east side of Bayshore at Bayshore/Cortland and Bayshore/Flower.

Bayshore Boulevard between Jerrold Avenue and Helena Street is part of San Francisco's Vision Zero High Injury Network , which means 75% of the city’s traffic injuries and fatalities occur on just 13% of San Francisco streets.  

From September 2016 to September 2021 there have been 71 collisions involving a vehicle and another vehicle, bicyclist or pedestrian on Bayshore Boulevard between Oakdale and Silver avenues. Eight pedestrian collisions resulted from this total with one of these collisions identified as a severe injury. Six bicycle collisions resulted from this total with four collisions identified as a severe injury. 


Project Timeline 
Community Outreach
Winter/Spring 2022
Legislation & Detailed Design
Spring 2022
Spring/Summer 2022
Current Phase or Stage
Project Status
Pedestrian Improvements
Bicycle Infrastructure Improvements
Bayshore Boulevard

Bayshore Boulevard Quick-Build Project

The Bayshore Quick-Build is in support of the city’s commitment to Vision Zero. The project's main goal is to improve traffic safety conditions and comfort for all who travel along Bayshore Boulevard between Oakdale and Silver avenues by using adjustable, quick-to-construct, and reversible roadway treatments. 

What is a ‘Quick-Build’ project?

Quick-build projects focus on the implementation of safety improvements on streets identified on San Francisco's Vision Zero High Injury Network.

Quick-build projects are adjustable and reversible traffic safety improvements that can be installed relatively quickly. Unlike major capital projects that may take years to plan, design, bid and construct, quick-build projects are buildable within months and are intended to be evaluated through our Safe Streets Evaluation Program within the initial 24 months of construction. The Safe Streets Evaluation Program, will analyze the project before and after implementation to review outcomes and determine design effectiveness. Evaluations will inform near-term modifications and a long-term design for this street. 

Typical quick-build improvements could include:

  • Paint, traffic delineators, and street signs
  • Parking and loading adjustments
  • Traffic signal timing

Project Benefits

Improvements within the project area will provide a greater sense of safety while cycling/walking and support the City’s Vision Zero goals.

Project Outreach

Community stakeholders will be informed of these projects prior to construction and will have the opportunity to provide input at a public hearing.

Stay Updated

If your business, organization or community group would like a presentation about the Bayshore Boulevard Quick-Build project, please contact Adrienne Heim, Transportation Planner, at

San Francisco County Transportation Authority logo
Vision Zero SF logo
Contact Information
Jonathan Chimento, Project Manager
Adrienne Heim, Transportation Planner