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Floodplain Maps
The FEMA floodplain maps for New Hampshire communities can be viewed at the following locations.
FEMA Map Service Center
- Current, Historic, and Future FEMA Floodplain Maps - Available for viewing, printing portions of the map (by creating a FIRMette), and purchasing digital copies of the maps. Paper copies are no longer available.
- Current FEMA Flood Insurance Studies - Available for viewing and purchasing digital copies of the studies. Paper copies are no longer available.
- Letter of Map Changes (LOMC) - Full size (8.5 x 11 in) pdf files of each LOMC (since 1997) available for viewing, download, and printing.
- Tutorials
- A tutorial on how to find and print a flood map
- A tutorial on how to read a FIRM are available
- Using the National Flood Hazard Layer Web Map Service in Google Earth™
NH GRANIT
- NH GRANIT at the University of New Hampshire is currently a FEMA Cooperating Technical Partner and the host of the state's geographic information system (GIS) clearinghouse.
- NH Floodplain mapping can be viewed on NH GRANIT and GRANITView for communities in all counties except for Belknap County. To view Belknap County community floodplain maps, please go to the FEMA Map Service Center.
The following information and data can be found on NH GRANIT:
- Current and Preliminary FEMA Floodplain Maps - Full size (36 x 24 in) pdf files of each map panel available for viewing, download, and printing to large scale plotter.
- Current and Preliminary Flood Insurance Study - Full size (8.5 x 11 in) pdf files of each study available for viewing, download, and printing.
- GIS Data - supporting the floodplain maps are available for download at: http://www.granit.unh.edu/data/search (theme keyword: flood)
- Printing Services- Print requests for paper copies of the effective floodplain maps are available for a small fee.
The following information and data can be found on GRANITView:
- View the above floodplain data by selecting Floodplains (DFIRMS) under the Map Layers for communities in all counties except for Belknap County.
- View floodplain data in relation to other layers (e.g. soils, wetlands, topography, geodetic control points).
- Zoom in for a close up view of areas on a clear and recent aerial photograph.
NH Office of Energy and Planning (OEP)
- OEP maintains a collection of all past and current NFIP maps and FISs for New Hampshire communities. We can usually provide copies of either the entire map or portions of the map at no charge. Please contact us for a map or study or to stop by to review the collection.
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