FEMA flood zone rules in Irving, TX — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Irving regulates floodplain development under the Land Development Code and participates in the National Flood Insurance Program (NFIP). The city enforces FEMA flood zone designations along the Elm Fork of the Trinity River, Cottonwood Creek, and other drainage corridors. Construction in Special Flood Hazard Areas requires a floodplain development permit, and residential structures must be elevated at least one foot above the base flood elevation.
Irving has significant FEMA-designated Special Flood Hazard Areas along the Elm Fork of the Trinity River, Cottonwood Creek, and other waterways. Irving Flood Control District 3 (IFCD 3), formed by the Texas Legislature in 1983, maintains 5.5 miles of waterways, levees, storm water pump stations, and canals to protect the Valley Ranch community from Elm Fork flooding. The pumping system maintains canal water at approximately 418 feet elevation, activating when levels reach 419 feet or when the Elm Fork reaches 415 feet. Development within the FEMA 100-year regulatory floodplain of the Trinity River corridor requires a Corridor Development Certificate (CDC) through the NCTCOG program, ensuring no flood level increase or storage capacity reduction. Irving participates in NFIP. Flood insurance is required in SFHAs with federally-backed mortgages. Report drainage issues to the Municipal Drainage Utility at Drainage@cityofirving.org or (972) 721-4760.
Building in flood zone without permits: stop-work order. CDC required before any development in regulatory zone. NFIP non-compliance affects community eligibility.
Irving, TX
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Side-by-side rule comparisons with other cities in Dallas County.
See how other cities in Dallas County handle flood zones.
See how Irving's flood zones rules stack up against other locations.
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