FINAL UPDATE: IB and OB 29 Sunset coaches have resumed regular routes through the park. (More: 20 in last 48 hours)

Potrero Yard Modernization Project

Potrero Yard Reimagined – Building a Bus Yard that Blends in with the Neighborhood

Conceptual Design Sketches

Drag the divider between the before and after views to compare them.

17th and Bryant streets

Mariposa and Hampshire streets

A detailed version of the before/after images is available.
Project Introduction

In 2017, the SFMTA launched the Building Progress Program$1.2 billion multi-year effort, to repair, renovate, and modernize the San Francisco Municipal Transportation Agency's (SFMTA) aging facilities to keep the City moving.

Potrero Yard, located at Bryant and Mariposa streets, is the first site scheduled under the Program that the SFMTA  will modernize and renovate. 

The Potrero Yard Modernization Project will replace the obsolete two-story maintenance building and bus yard 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.

A modern Potrero Yard will better serve our customers by facilitating more reliable and convenient bus service, and by making service more resilient in the event of a natural disaster.

December 2021 Update: A reminder that the Request For Proposal period ends on Dec. 30, 2021 at 2 p.m. PST. During the Fall/Winter 2021 months, the Working Group will be on a brief hiatus. These meetings remain listed in this project, but will be annotated as *Canceled* to maintain transparency. The Working Group will re-convene in 2022.

Public tours of Potrero Yard have been temporarly halted due to current public health conditions. More information on available tours can be found here:. 

Potrero Yard tour information  

Project Timeline 
2018 to 2021
2021 to 2023
2023 to 2026
Receive new buses
Cost Estimate
$500 m (in 2019 dollars and exclusive of costs not directly related to construction)
Current Phase or Stage
Predicted Completion
Project Status
Environmental Review
Project Success
On schedule
Provide needed space for a growing bus fleet.
Facilitate the transition to a battery electric fleet.
Improve the efficiency and timeliness of bus maintenance and repairs.
Improve working conditions for all staff and enhance resiliency to climate change and natural disasters.

Project video(s)
San Francisco City Seal
Muni logo
San Francisco Office of Economic and Workforce Development logo
San Francisco Public Works logo
SF Planning Department logo
Contact Information
Potrero Yard
Kerstin Magary, Facilities and Real Property Management Senior Manager
Bonnie Jean von Krogh, Building Progress Public Affairs Manager
John Angelico, Public Information Officer