Floodplain Re-Mapping Projects

The Montana Department of Natural Resources & Conservation (DNRC), together with Missoula County and City of Missoula, are working to re-map the Clark Fork and Bitterroot Rivers to provide the community with updated floodplain boundaries and base flood elevations. Updated floodplain maps will depict the latest, most accurate flood risk data, and will eventually replace the existing floodplain maps which are based on data from the 1970s.

To stay informed about this project, visit the DNRC Floodplain Management webpage. View the project area for the map update and the proposed timeline below.

Map of project area for floodplain update
Image of the Project Timeline for the Floodplain Map Update