Series 26894
Utah Geospatial Resource Center
Weber county base flood elevation records, 2005-2024.
View history of records' creator.
View retention schedule.
Schedule Description
This geospatial Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
Scope and Content
This geospatial Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
Notes
Geospatial records require specialized software for viewing and manipulating. These records were created using a product called ARC/GIS from ESRI, version 9.3, and may be viewed in ESRI's ARC Catalog. Geodatabases require the ESRI product, although shapefiles may be used by open source software which understands shapefile specifications. PDF versions of these records require Adobe Acrobat version 9 or higher. Open PDF files directly in Acrobat rather than a browser for full access to the data. Use of the geospatial toolbar in Acrobat is recommended, available as a plugin from TerraGo Technologies (www.terragotech.com).