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DNRC and county brief commissioners on preliminary FEMA flood‑insurance maps; appeal window, timeline explained
Summary
DNRC and Missoula County staff briefed commissioners on FEMA’s preliminary Flood Insurance Rate Maps for the Clark Fork, Bitterroot and Rock Creek, explaining scope, public appeal options and an expected timeline toward effective maps in 2027.
Federal, state and county officials briefed Missoula County commissioners on preliminary Flood Insurance Rate Maps (FIRMs) and the accompanying Flood Insurance Study for the Clark Fork River, Bitterroot River and Rock Creek.
Matt Heimel, Missoula County floodplain administrator, introduced the item and said the preliminary maps were issued by FEMA on Aug. 28. Nadine Wadsworth (flood hazard outreach planner) and Tracy Sears (DNRC National Flood Insurance Program coordinator) presented study scope, mapping products and next steps. DNRC staff said the study updates approximately 93 stream miles and consolidated older studies into the new preliminary maps and technical memoranda.
Presenters explained key map components: the special flood hazard area (commonly called the 1% annual chance or 100‑year flood), the floodway…
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