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Effective panels (pdf format) of the countywide DFIRMs are available for Cheshire, Grafton, Rockingham, Strafford and Sullivan counties.The GIS data supporting the DFIRMs has been released at no cost via the
GRANIT Data Download page (theme keyword = flood).
Preliminary panels (pdf format) of the countywide DFIRMs are available for Hillsborough and Merrimack counties. These maps are currently being reviewed by the communities, and cannot be used for official floodplain determination at this time. Communities should continue to use their effective FIRMs until the DFIRMs are officially adopted.
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