Milk River Watershed Flood Maps Update

The Milk River communities have been working with the Federal Emergency Management Agency (FEMA) and Montana Department of Natural Resources and Conservation (DNRC) to produce new and updated 1% annual chance (100-year) floodplain maps. The project includes updating all the existing mapped floodplains in Hill, Blaine, Phillips, and Valley Counties.

Updated floodplain maps will depict the latest, most accurate flood risk data, and will eventually result in updated FEMA floodplain maps. Most of the existing floodplain maps across all 4 counties are based on data collected in the 1970s. For more information see: Floodplain FAQs Flood Study Process

Project Timeline

Flood Insurance Rate Maps indicate areas of flood risk. Once this project is complete, new and updated Flood Insurance Rate Maps will provide more accurate, current, and detailed data and mapping of flood risk areas. New floodplain studies involve collecting and analyzing data, including topography, hydrology analyses and hydraulic analysis.

Project Updates

Data development is currently underway for all four counties check back for project updates and the availability of draft data when data development is complete.

Project kickoff meetings

November 5, 2019 Hill County/City of Havre | view slides
November 6, 2019 Blaine County/ City of Chinook | view slides
November 6, 2019 Phillips County/ City of Malta | view slides
November 7, 2019 Valley County/ City of Glasgow | view slides

State Flood Hazard Viewer

Draft Data is not yet complete for the project areas. Once the data is complete it will be loaded onto the State Flood Hazard Viewer to share with the public.

Know Your Property's Flood Risk

Information on Owning Property in Floodplains

Property owner fact sheets will become available once draft data is completed.

Flood Insurance Information

RR-22.0-Rate-Guide.PNG FEMAs Flood Insurance Rate Explanation Guide