New Hampire seacoast communities to get higher-tech look at flood risks, sea-level rise

The state of New Hampshire is currently working off limited flood risk maps.

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“The 2090 scenario enables a more complete understanding of predicted sea levels throughout the 21st century at consistent timeframes,” DES wrote to the Executive Council. “The additional scenario of 2090 will also provide critical information to long-term planning efforts such as transportation and infrastructure.”

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“This effort will allow us to apply that more accurate approach consistently across all tidally influenced waters in coastal New Hampshire,” she said

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When completed, the coastal flood risk model will be publicly available for communities, state agencies, residents, and other stakeholders to make decisions down to the parcel level. DES’ Coastal Program also has a grant from the National Fish and Wildlife Foundation to use the modeling results at coastal sites to inform future adaptive management decisions.