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Rockingham County

Provides links and information regarding the updated floodplain maps and study for the 15 Rockingham County Communities in the Coastal NH Floodplain Mapping Project.

Rockingham County Coastal NH Project Timeline

On July 29, 2020, FEMA issued the Letter of Final Determination (LFD) for the Rockingham County portion of the Piscataqua Salmon Falls Watershed – Coastal Project. The LFD establishes the effective date of the new Flood Insurance Rate Maps (FIRMs) and Flood Insurance Study (FIS) and provides communities six months to adopt the new FIRMs and FIS prior to the effective date. The FIRM effective date is January 29, 2021.

To learn more about the NH Coastal Mapping Project, please go to its home page.

Community Officials - Flood Maps are Changing Webinar Series

Community Officials Information

Property Owner and Flood Insurance Information

Regulatory Products (recommend viewing the following in Google Chrome)

Non-Regulatory Products

The following non-regulatory products were produced by FEMA as part of the NH Coastal Floodplain Mapping Project. FEMA is providing these products to help community members and officials view and visualize their local flood risk, allowing communities to make informed decisions about reducing flood loss and mitigating potential damage from flood hazards. A general description of the following products can be found on FEMA's web site.

Contact Us

For more information, contact OSI's Floodplain Management Staff.

Portable Document Format Symbol Portable Document Format (.pdf). Visit for a list of free .pdf readers for a variety of operating systems.

NH Office of Strategic Initiatives