FEMA flood zone rules in Corona, CA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Corona participates in the National Flood Insurance Program and enforces floodplain management under Municipal Code Chapter 16.36. Major flood-prone areas include the Prado Basin in the northwest, Temescal Wash, and tributaries draining the Cleveland National Forest. Construction in Special Flood Hazard Areas requires elevation certificates and floodplain development permits.
Corona Municipal Code Chapter 16.36 (Floodplain Management) implements FEMA's National Flood Insurance Program (NFIP) requirements. The current FEMA Flood Insurance Rate Maps (FIRMs) for Riverside County, effective August 28, 2008, with Letters of Map Revision since, identify Special Flood Hazard Areas (SFHAs) within Corona, primarily along Temescal Wash, the Prado Basin floodplain in the northwest near Highway 71, and several smaller tributaries. New construction or substantial improvements (50% or more of pre-improvement value) within an SFHA require a Floodplain Development Permit from the Public Works Department. Residential structures must have the lowest floor elevated at least one foot above the Base Flood Elevation (BFE), and an Elevation Certificate prepared by a licensed surveyor must be submitted before final occupancy. Non-residential structures may be flood-proofed instead. Manufactured homes, accessory structures, and fill placement face additional restrictions. The Prado Basin behind Prado Dam acts as a flood control reservoir; properties within the inundation area face seasonal flooding risk. Flood insurance is mandatory for federally backed mortgages on properties in SFHAs (Zones A, AE, AO). Property owners can check flood zones at the FEMA Flood Map Service Center.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Corona code enforcement directly for current fines, enforcement procedures, and hearing options.
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Side-by-side rule comparisons with other cities in Riverside County.
See how other cities in Riverside County handle flood zones.
See how Corona's flood zones rules stack up against other locations.
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