District Floodplain Management

Riverside County is a participating community in the National Flood Insurance Program (NFIP). Participation in the NFIP makes residents of the unincorporated parts of Riverside County eligible to purchase flood insurance. In order to participate in the NFIP and therefore make the purchase of flood insurance available to citizens of the county, the Federal Emergency Management Agency (FEMA) requires the county to adopt a floodplain management ordinance. The intent of the ordinance is to 1) ensure that any new construction and/or substantial improvement within a mapped floodplain is done in a manner that reduces damage to the public and property, 2) discourage any new development within floodways. The District is designated to administer the program in the western parts of the county. The Coachella Valley Water District (CVWD) is designated to administer this program in most of the eastern parts of the county.

The Floodplain Management Section of the District is responsible for the implementation of the County's Floodplain Management regulation and portions of the NFIP regulations. As a result the FPM section reviews/performs analysis of CLOMRs and LOMRs, administers Community Rating System with FEMA and actively reviews and/or performs floodplain mapping.

Many of the questions you have regarding the NFIP, Floodplain Management and related subjects may be answered in the list of FAQ we have compiled. We have also provided links to various sites that relate to floodplain.

If you still have questions after you go through relevant potions of the FAQ section, and need to speak to anyone in the Floodplain Management Section, please call 951-955-1200. Have the address and Assessor's Parcel Number (APN) of the property and the flooding source (if known) ready.

If the property is located within a city, please contact that city's public works department.

CLOMR, LOMR, Elevation Certificates

For information regarding either Conditional Letters Of Map Revision (CLOMR), Letters Of Map Revision (LOMR) or Elevation Certificates (click here to search), please call FPM at 951.955.1200 or send an e-mail to FPM. Provide the property address, Assessor's Parcel Number, Flooding source (if known) and also a telephone and fax number.