Floodplain Administration and Mapping

Portions of the City of Fortuna are within the FEMA 100- and 500-year regulatory floodplain due to the City’s proximity to Rohner, Strongs, and Mill Creek. To determine if your property is within the regulatory floodplain or floodway, please use the link below which is to the FEMA's floodplain map and data viewer, searchable by address:

FEMA Flood Map Service Center: Search for Flood Map By Address

As part of the multi-stage Rohner and Hillside Creek Flood Control Project, the City of Fortuna recently completed a Letter of Map Revision (LOMR) with FEMA to remap the majority of the regulatory floodplain for Rohner and Hillside creeks within the City, bound between 12th Street and Rohnerville Road. This revision is now currently reflected in the mapping and data available on the FEMA website. As a result of the map revision, many of the properties in the City were removed from the regulatory floodplain. To view maps of how the floodplain has changed as a result of the project, please download them at the link below:

City of Fortuna Revised Floodplain Overview Maps for Rohner and Hillside Creeks

If you are a resident or property owner that was affected by the remapping or have additional questions about what floodplain remapping means for property owners, please see the informational letter below. Included in the letter are additional resources on the National Flood Insurance Program, and information on what a change in the floodplain means for your affected property.

Floodplain Revision Letter to Affected Property Owners

Letter of Map Revision 1 of 2

Letter of Map Revision 2 of 2

If you have any questions on the Rohner Creek Project, floodplain mapping, or flood insurance, please contact the City of Fortuna Public Works Department at 725-1471.