![]() The City passed legislation that requires sellers or landlords of property in San Francisco to disclose to buyers or tenants that the property is located within the flood risk zone delineated on the San Francisco Public Utilities Commission's 100-Year Storm Flood Risk Map. Elevate belongings in your garages and any low-lying areas on your property and.Report issues such as flooding, clogged catch basins, sewer backups, and displaced manhole covers online at or by phone at 3-1-1.Learn about our Floodwater Grant Program, with up to $100,000 reimbursement for eligible properties for implementing flood-proofing projects.San Francisco residents have already taken advantage of the SFPUC’s various programs to help them prepare and better protect their properties from major rain events that you can find at /rainreadysf: Notifying property owners and tenants that they are within a 100-year Storm Flood Risk Zone (Flood Risk Zone) via the Flood Map is one of the tools we are employing. In partnership with our residents, we are building a robust flood resilience strategy. ![]() The SFPUC has come together with other City agencies and stakeholder groups to reduce flood risk that property owners and tenants face through infrastructure investments, targeted City services, and innovative new programs. If you want a hard copy of the Flood Map please contact us at (415) 554-3289. If you have questions, want to learn more about the Flood Map, or understand what the SFPUC is doing to promote Citywide flood resilience, please review our Information Sheet or contact us at your property on the Flood Map? Please click on the map below to utilize a searchable Flood Map where you can enter your address to find out. The Flood Map does not show the exact depth of flooding or historical record of flooding at a given location. It does not consider flood risk in San Francisco from other causes such as inundation from the San Francisco Bay or Pacific Ocean. This Flood Map shows flood risk from storm runoff only. “Deep and contiguous flooding” means flooding that is at least 6-inches deep spanning an area at least the size of half an average City block. The Flood Map shows parcels that are highly likely to experience “deep and contiguous” flooding during a 100-year storm. The purpose of the Flood Map is to inform existing and future property owners and tenants about flood risk on their properties and promote resilience. Please find more info on flood resilience efforts below. The SFPUC used computer modeling that simulates flooding occurring Citywide under a 100-year storm to identify parcels that are likely to flood at least 6 inches in a 1% chance storm. ![]() A “100-year storm” means a storm with a 1% chance of occurring in a given year. The SFPUC has developed a 100-Year Storm Flood Risk Map (Flood Map) that shows areas of San Francisco where significant flooding from storm runoff is highly likely to occur during a 100-year storm. When this occurs, we can experience flooding that sometimes results in property damage. During extreme storms, storm runoff flows still follow the naturally-formed historical waterways. 100-Year Storm Flood Risk MapĪs San Francisco has developed over time, its hilly topography has been largely paved over. Is your property at risk of flooding in a major rainstorm? Review our 100-year Storm Flood Risk Map, learn about legislation regarding property sale disclosures, and take advantage of our programs to help you prepare for and minimize impacts of heavy rains on your property. ![]()
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