Title
Status of Conversion to Digital Flood Insurance Rate Maps
Abstract
Flood Insurance Rate Maps (FIRMs) commonly referred to as flood maps are primarily used for two purposes:
- Information for local communities including counties, municipalities and tribes to enforce local regulations pertaining to development in “100-year floodplains” and “floodways”
- For management and regulation of mandatory flood insurance rules.
To a large extent the first purpose complements efforts related to river protection. FIRMs are developed from the best scientific and hydrologic information available. In 2005 a national effort was initiated by FEMA to convert paper FIRMs into a modern digital format, referred to as DFIRMs. When feasible, DFIRMs incorporate new hydrologic and hydraulic analysis and floodplain mapping study information.
The proposed poster will show areas of the Clark Fork that have been remapped are in the process of being re-mapped. The preliminary DFIRM map for Missoula County was released on April 6, 2009, however this draft is being updated and a new revised version will be released in the future. This Geographic Information Systems (GIS) formatted map reflects current mapping and mapping of some new hydrologic and hydraulic analysis study work. The Montana Department of Natural Resources and Conservation (DNRC) utilized a grant from FEMA to contract PBS&J to perform both the digitization and new floodplain mapping work for this project. This GIS project was undertaken in cooperation with local governments. Data from the new DFIRM is not used for insurance purposes until the map is finalized.
Start Date
5-3-2010 12:00 PM
End Date
5-3-2010 2:00 PM
Document Type
Poster
Status of Conversion to Digital Flood Insurance Rate Maps
Flood Insurance Rate Maps (FIRMs) commonly referred to as flood maps are primarily used for two purposes:
- Information for local communities including counties, municipalities and tribes to enforce local regulations pertaining to development in “100-year floodplains” and “floodways”
- For management and regulation of mandatory flood insurance rules.
To a large extent the first purpose complements efforts related to river protection. FIRMs are developed from the best scientific and hydrologic information available. In 2005 a national effort was initiated by FEMA to convert paper FIRMs into a modern digital format, referred to as DFIRMs. When feasible, DFIRMs incorporate new hydrologic and hydraulic analysis and floodplain mapping study information.
The proposed poster will show areas of the Clark Fork that have been remapped are in the process of being re-mapped. The preliminary DFIRM map for Missoula County was released on April 6, 2009, however this draft is being updated and a new revised version will be released in the future. This Geographic Information Systems (GIS) formatted map reflects current mapping and mapping of some new hydrologic and hydraulic analysis study work. The Montana Department of Natural Resources and Conservation (DNRC) utilized a grant from FEMA to contract PBS&J to perform both the digitization and new floodplain mapping work for this project. This GIS project was undertaken in cooperation with local governments. Data from the new DFIRM is not used for insurance purposes until the map is finalized.