Eastvale, CA Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in Eastvale, CA, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.
Key Facts
- Permit required
- Before any construction or development in flood hazard area
- Hazard map source
- FEMA flood insurance study dated Aug. 28, 2008
- Floodplain administrator
- City Manager
- Max cumulative rise
- 1 foot increase in base flood elevation citywide
- Penalty
- Misdemeanor under § 110.80.080
Summary
Eastvale requires a development permit before any construction, grading, or other development in a mapped special flood hazard area, based on FEMA's 2008 flood insurance study for the county. Building without that permit is a misdemeanor, and the city manager, acting as floodplain administrator, reviews applications that could raise flood risk.
A development permit shall be obtained before any construction or other development, including manufactured homes, within any of special flood hazard area established in accordance with its definition in section 110.80.070. Application for a development permit shall be made on forms furnished by the city.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 16 Update 1).
Full Breakdown
Eastvale Municipal Code § 110.80.150 provides that "a development permit shall be obtained before any construction or other development, including manufactured homes, within any [area] of special flood hazard" as established under § 110.80.070. Applicants must submit duplicate scaled plans showing the location, dimensions, and elevation of existing or proposed structures, proposed water supply and sewer connections, grading and drainage information, the location of any regulatory floodway, base flood elevation data, and the proposed elevation of the lowest floor, plus engineer or architect certifications where floodproofing or crawl-space openings are involved.
The mapped hazard areas come from "the 'flood insurance study (FIS)' done for the county dated August 28th, 2008, and accompanying flood insurance rate maps...and flood boundary and floodway maps" adopted by reference under § 110.80.070, on file with the Eastvale Department of Public Works at 12363 Limonite Avenue. Section 110.80.140 directs the floodplain administrator, a role the city assigns to the city manager under § 110.80.130, to review every permit for compliance, confirm the site is reasonably safe from flooding, verify the project will not raise the base flood elevation more than one foot anywhere in the city, and confirm any required state and federal permits and FEMA map revisions are in hand before construction begins. Larger subdivisions and manufactured home parks over 50 lots or five acres face added duties under § 110.80.190, including identifying the special flood hazard area and base flood elevations on final plans. Appeals of the floodplain administrator's decisions go to the city council under § 110.80.160.
Violations & Fines
Developing land in a special flood hazard area without a permit, or violating a final condition imposed by the city council or floodplain administrator, is a misdemeanor under Eastvale Municipal Code § 110.80.080, and the city can pursue any other lawful action needed to prevent or remedy the violation in addition to criminal prosecution.
Frequently Asked Questions
Do I need a city permit to build in an Eastvale flood zone?
What has to be included in a floodplain development permit application?
What happens if I build in a flood zone without the required permit?
Sources & Official References
Other rules in Eastvale
California rules heatmap·Compare Eastvale to another location·View the California environmental rules overview
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Flood Zones in Nearby Cities
How other cities in Riverside County handle flood zones.