Flood resiliency resources available to San Francisco residents ahead of rainy season

he San Francisco Public Utilities Commission has released a list of resources for residents and businesses to prepare for potential flooding this rainy season.

Looming La Niña climate conditions preceded by this year's hot, dry summer could increase the risk of flooding over the next 12 months, according to officials from the state Department of Water Resources.

"California is experiencing weather whiplash, with climate change fueling intense droughts followed by historic storms and flooding," said SFPUC general manager Dennis Herrera. "While we're facing tough challenges, we're also making generational investments in resilient infrastructure and clean energy. These investments are vital, but they're not a cure-all."

Flood Insurance : San Francisco residents can access subsidized flood insurance through the National Flood Insurance Program, offering protection at reduced costs.

Floodwater Grant Program : Eligible property owners are encouraged to apply for grants of up to $100,000 to fund flood resilience projects, including the installation of backwater valves, flood barriers, sump pumps, and drainage improvements. The SFPUC recently streamlined the application process and offers support through site visits and project recommendations.

Green Infrastructure Grants : To mitigate stormwater runoff, the SFPUC offers funding to schools, health care facilities, and arts organizations for green projects such as rain gardens, permeable pavements, and green roofs. Since 2019, it has allocated about $10 million a year. Additionally, anyone who has green infrastructure on their property can apply for a credit on the stormwater component of their bill. More information on the stormwater component and credit can be found at stormwater.sfpuc.org.

Free Sandbags : Residents and businesses can pick up free sandbags to fortify low-lying areas and entryways against flooding. Up to 10 sandbags are available per property at the Public Works Operations Yard on Kansas and Marin streets.

Updated City Flood Map : The city has updated its 100-year Storm Flood Risk Map, which indicates the likely stormwater height in major storm events for each address. Property sellers and landlords in flood-prone areas are legally required to disclose flood risks to their buyers and tenants.

In preparation for incoming storms, San Francisco Public Works crews are clearing storm drains and catch basins across the city. During storms, emergency crews monitor high-risk areas, using mechanical and manual tools to reduce localized flooding.

The city's Department of Emergency Management is coordinating efforts to ensure a rapid response and urges residents to sign up for emergency alerts via AlertSF .

The SFPUC also invites residents to adopt and maintain city drains through the Adopt-a-Drain program. The agency is also investing $634 million on new stormwater pipes, collection systems, and drainage upgrades across three key sites: 15th Avenue and Wawona Street, 17th and Folsom streets, and lower Alemany Boulevard.

"As climate change increases the frequency and intensity of severe storms, we all need to take steps to prepare for the impacts of flooding, landslides, and prolonged power outages," said San Francisco Department of Emergency Management executive director Mary Ellen Carroll.

Before the next storm, people should check their supplies and make sure they have what they need on hand, and should check on loved ones who may need assistance, such as older adults or neighbors with disabilities.