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Iowa City moves to adopt FEMA flood maps, updates local floodplain code
Summary
Council gave first consideration to a zoning ordinance aligning local floodplain standards with FEMA's new Flood Insurance Rate Maps to preserve NFIP participation and community rating discounts; council voted 6–0 to move the ordinance forward.
Iowa City — The City Council voted unanimously on Oct. 7 to give first consideration to a zoning ordinance updating floodplain management standards to adopt FEMA’s new Flood Insurance Rate Maps (FIRMs) and Flood Insurance Study.
Daniel Sisman of Neighborhood and Development Services told the council the update is necessary to maintain participation in the National Flood Insurance Program (NFIP), preserve federally backed flood insurance access and FEMA disaster eligibility, and retain credit in the Community Rating System (CRS). He said the Iowa River floodplain affects roughly 900 acres and nearly 300 structures in the city; Ralston Creek’s mapped acreage decreased while Willow Creek’s mapped flood heights increased, potentially bringing additional structures into mandatory insurance standards.
Sisman said the proposed amendments clarify definitions, add accessory‑structure standards, strengthen enforcement and no‑rise requirements, and formalize variance criteria. The Planning and Zoning Commission recommended the amendments 4–0.
On a roll call, councilors voted 6–0 to give first consideration to the ordinance. Staff said FEMA’s maps will become effective in December and urged adoption to avoid losing NFIP benefits, such as the citywide CRS class‑6 insurance discount (about 20% premium reduction) and eligibility for FEMA recovery funds.
Next steps: The ordinance will return for second consideration and final adoption at a subsequent council meeting before the FEMA effective date.
