New Hampshire Coastal Viewer

The New Hampshire Coastal Viewer is an online mapping tool with coastal resources spatial data, hazards-related spatial data, and other spatial data sets for New Hampshire's 42 coastal watershed communities. Launched in 2015, this tool provides users the ability to access more than 150 spatial data sets, and to make and share their own customized maps.

Examples of the data available on the Coastal Viewer include mapped conservation and public lands, salt marsh and eelgrass maps, aerial imagery, FEMA floodplains, storm surge and sea-level rise information, infrastructure, and fluvial erosion hazards and culvert assessment data. Some of the features of the Coastal Viewer include the ability to search, display and query data sets; customize the color of the displayed data; and make, share and print maps.

The Coastal Viewer was developed by NH GRANIT as part of the Resilient New Hampshire Coasts project, which was coordinated by the New Hampshire Department of Environmental Services Coastal Program. In addition to the coastal hazards mapping tool, the program developed other information and tools for the coastal communities to help plan for coastal hazards, including the facilitation of community adaptation planning workshops, improved modeling on how NH’s salt marshes will be affected by sea level rise, and outreach to area businesses. The project was funded by the National Oceanic and Atmospheric Administration Office for Coastal Management.

Project partners also worked with communities on climate adaptation planning, including: the City of Dover, the City of Portsmouthand the Seabrook-Hamptons Estuary Alliance, a collaboration of the three communities of Seabrook, Hampton Falls and Hampton.




Publication Date: 2015

Related Organizations:

  • New Hampshire Department of Environmental Services
  • University of New Hampshire


Resource Category:

Resource Types:

  • Mapping tool
  • Modeling tool

States Affected:


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