Flood Risk Notification

Screenshot of the 2023 Flood Risk Notification with a photo of the flooding in Pajaro
2023 Flood Risk Notification

We mail out flood risk notifications every September to inform property owners of their flood risks.

Millions of Californians are at risk from flooding along thousands of miles of streams, rivers, lakes and coastline. Floods can bring devastating impacts to regions and no one can predict when and where floods will occur. But hydrologic engineers and other experts can estimate the likelihood of annual flood flows and stages that could occur in any particular location with collected data. Flood information can be used to estimate average annual damage. If you live, work, or own property in a flood-prone area, you can use this information to:

  • Stay informed about the flood risk to you and your property.
  • Weigh cost-effective options to reduce flood risk.
  • Measure the viability of flood insurance.



Contact Information



View Your Levee Flood Protection Zone Map

Enter Your Address to view your Levee Flood Protection Zone map.

Dam Inundation Maps

An inundation map shows flooding that could result from a hypothetical failure of a dam or its critical appurtenant structure. In 2017, the California Legislature passed a law requiring all state jurisdictional dams, except low hazard dams, to develop inundation maps and emergency action plans. 

View approved inundation maps.

Please note that inundation maps for dams owned by the federal government are not available on this website.