Flood Risk Notification

2017 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 the information of average annual damage 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

Be Prepared

Flooding can occur anywhere, in any season, at any time. It doesn’t need to be raining for floods to impact lives and property. Flooding may develop in just hours or minutes from broken dams and levees, snowmelt, winter storms, flash floods, swollen creeks, rivers and streams, or from blocked drainage systems.

If you live behind a levee, know these 4 essential levee facts:

  1. Flooding will happen
  2. No levee is flood-proof
  3. Risks associated with flooding vary
  4. Actions taken now will save lives and property

Preparing for a flood is easy and can save you and your loved ones from thousands in damages. Learn more about preparing for floods .


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