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Building Progress Program

Project Introduction

Over the last several years, the San Francisco Municipal Transportation (SFMTA) has made historic investments in our Muni fleet. Now, it is one of the most modern and cleanest in the nation. These investments have helped the SFMTA move more of our customers than ever before and are critical in meeting our city’s ambitious climate change goals.

Yet, the SFMTA facilities supporting those investments are old, outdated and over-capacity. Soon a lack of modern facilities will prevent essential operations necessary for serving the public. That’s why the SFMTA has launched the Building Progress Program. The program will engage the public and address these critical needs through expanding and modernizing old facilities.

Kirkland yard

Project Timeline 
2017 to 2026
Potrero Yard Modernization Project
2020 to 2023
Improvements to Muni Metro East and 1399 Marin
Project Status
SFMTA Muni bus icon
SFMTA Muni Metro train icon
Provide needed space for a growing bus and LRV fleet.
SFMTA Muni bus icon
SFMTA Muni Metro train icon
Improve the efficiency and timeliness of bus and LRV maintenance and repairs.
SFMTA Muni bus icon
SFMTA Muni Metro train icon
Improve working conditions for all staff and enhance resiliency to climate change and natural disasters.
SFMTA Muni bus icon
Facilitate the transition to a battery electric fleet.
Project video(s)
Project Details, History or Features

Project Introduction

Every day, approximately 725,000 San Francisco residents and visitors ride Muni to commute to work or school, access vital services, spend time with family and friends, and run errands. By year 2049, the City is projected to grow to nearly 1,000,000 residents. Therefore, having efficient public transit is important today and will continue to be essential in the future. 

The SFMTA is replacing and expanding Muni bus and light rail vehicles, adding new rapid routes, and optimizing old routes to provide better transportation. Muni currently operates 1,100 buses and light rail vehicles that need to be stored and maintained. By year 2025, Muni will receive 200 additional vehicles. Yet, the facilities that support them are old, outdated, and overcapacity.  

Potrero Yard Maintenance

The Building Progress Program aims to renovate and modernize the SFMTA"s aging facilities in order to keep the City moving. As a result, the program will improve transit operations by providing much needed space for the growing fleet of bus and light rail vehicles, facilitate the transition to a battery electric bus fleet, enhance the efficiency and timeliness of bus maintenance and repairs, advance working conditions for all staff and boost facilities' resiliency to climate change and natural disasters.

Modern maintenance and operations yards will help the SFMTA make stronger contributions to the neighborhoods that host our facilities. New yards will be quieter, more attractive, resource efficient and less costly to operate. The SFMTA will also pursue potential complementary uses beyond the core transit functions such as joint development (housing above the yard) or other uses that support community goals.  

Facilities and Timeline

The SFMTA has 20 facilities, which are needed to support Muni service, paratransit services, sign and paint shops, and other critical functions that keep San Francisco moving. Among the first major sites for improvement in the Building Progress Program are:

  • Potrero Yard Modernization Project  will replace the obsolete two-story maintenance building and bus yard located at Bryant and Mariposa streets with a modern, three-story, efficient bus maintenance and storage garage, equipped to serve the SFMTA’s growing fleet as it transitions to battery electric vehicles.  
  • Expansion of Muni Metro East and renovation of 1399 Marin to store and maintain vehicles during construction of Potrero Yard and other facilities.

Stakeholder Engagement

In November 2017 and early 2018, the SFMTA held its first round of public meetings in various neighborhoods throughout San Francisco including Civic Center, Dogpatch near the Muni Metro East Yard and Potrero Yard. These meetings focused on the critical need to modernize SFMTA facilities like Muni yards, maintenance shops, and paratransit facilities. 

In addition to these meetings, the Building Progress team conducted stakeholder interviews or attended meetings with several organizations, including:

  • 1850 Bryant Street Project Sponsor
  • Acción Latina
  • Calle 24
  • Dogpatch Neighborhood Association
  • Hispanic Chambers of Commerce
  • Kansas Street SAFE
  • KQED
  • Mission Economic Development Agency
  • Mission Housing Development Corp.
  • Potrero Boosters
  • Project Artaud
  • SPUR
  • Transit Riders Union
  • United to Save the Mission

If your community group would like a presentation on Building Progress, please contact

San Francisco city seal
San Francisco Office of Economic and Workforce Development logo
San Francisco Public Works logo
SF Planning Department logo
Contact Information
Licinia Iberri, Project Manager
Rafe Rabalais, Long Range Asset Planning Manager
Adrienne Heim, Public Information Officer