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Image of a Grassy Field to Advertise UWA SPUR TalkWestside Outreach Report Now Available

Learn about the stormwater management ideas the community created through the Westside Watershed Game. We'll be back this summer to present the recommended projects and programs to improve sewer infrastructure in San Francisco's three Westside Watersheds. Click here for the summary report.

 Project Factsheet
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About the Urban Watershed Assessment

As part of the Sewer System Improvement Program(SSIP), the San Francisco Public Utilities Commission (SFPUC) is planning infrastructure improvements on both the Bayside and the Westside of San Francisco, in each of San Francisco's eight distinct watersheds. The Urban Watershed Assessment is the watershed-based planning process SFPUC is using to help plan the City’s SSIP, a 20-year, multi-billion dollar project. These improvements will include both "grey" infrastructure such as pipes and tunnels, and "green" infrastructure such as rain gardens and permeable pavement to address such challenges as localized flooding, aging infrastructure, seismic safety and reliability, and water quality in the Bay and Ocean.

 Aging Infrastructure  Seismic Vulnerability  Climate Change Impacts

Aging Infrastructure

Over 80% of our pipes are over 100 years old and the system gets overwhelmed during heavy rains.

Seismic Vulnerability

Our sewer system was not built to withstand a major earthquake. Our sewer pipes and treatment facilities are seismically vulnerable.

Climate Change Impacts

The increasing intensity and frequency of storms can overwhelm our system and contribute to flooding.

Urban Watershed Assessment Process

The Urban Watershed team has engaged San Francisco through a variety of outreach efforts. Check out the reports and recordings below for Bayside and Westside planning activities and then check out our History of SF Urban Watershed Planning page for more information.

Bayside Urban Watersheds Documents

The project team is currently working on the Bayside Urban Watersheds Alternative, which includes improvements for the North Shore, Channel, Islais Creek, Yosemite and Sunnydale Watersheds. The team anticipates presenting the recommended alternative early 2015. Below are reports and webinars from the Characterization and Opportunities Phases of work.

Image of Bayside Opportunities Document July 2014 Bayside Urban Watershed Opportunities
yellow flower

Bayside Watersheds Webinar Recording from May 21st, 2014 (39 min)

If you missed our webinar about our watershed work for the Bayside of San Francisco, check out the recording to learn all about it!

Image of Southeast Watersheds Report November 2013 Watershed Planning Community Workshop Summary Report 
Image of Bayside Characterization Report July 2013 Bayside Watershed Characterization Report 
Image of Channel and Northshore Report June 2013 Watershed Planning Community Workshop Summary Report

Westside Urban Watersheds Documents

The project team is currently analyzing opportunities for improvements in the Westside Watersheds, which include Richmond, Sunset and Lake Merced Watersheds. Below are reports and webinars from the Characterization and Opportunities Phases of work. The team anticipates presenting the Alternatives summer 2015.

Image of Cover for WWO February 2015 Westside Urban Watershed Opportunities (18 MB)
Image of Westside Drainage Basin Characterization Doc

 Westside Urban Watershed Characterization Technical Memorandum

Image of a Heron  

Westside Watersheds Webinar Recording from August 6th, 2014 (41 min)

Our webinar from 8/6/14 discussed our work with the Westside of San Francisco. Listen to the recording to hear about it!

Image of Stormwater Mgmt Toolkit Brochure  Stormwater Management Toolkit

Get Involved

Check out the SFPUC calendar for upcoming Green Infrastructure and other SSIP events coming to your neighborhood!

Stay informed by subscribing to our e-newsletter to learn about upcoming sewer and urban watershed events and projects. Sign up here:

Last updated: 3/23/2015 1:36:20 PM