FEMA Flood Zone Lookup in Maine

Maine faces flood risk from coastal storm surge along its extensive rocky coastline, riverine flooding in the Kennebec, Androscoggin, and Penobscot river valleys, and ice jam flooding during spring breakup. The state's 3,478 miles of coastline create extensive exposure to nor'easters and coastal storms. The January 2024 winter storm brought record storm surge to coastal Maine with Portland, Bar Harbor, and Bath experiencing significant flooding. Ice jam flooding is a particularly dangerous and unpredictable threat in Maine, where the Kennebec and Penobscot rivers regularly develop ice jams during spring breakup causing rapid localized flooding. In 2008, an ice jam on the Kennebec River caused flooding in Augusta that destroyed the Capital Area Relief Bridge. Bangor sits at the head of tide on the Penobscot River facing both riverine and tidal flood risk. Portland has experienced increasing coastal flooding from storm surge and sea level rise. Maine's aging mill towns along the Androscoggin River have historic flood exposure. The state has approximately 170 NFIP-participating communities. Sea level rise projections and warming Gulf of Maine waters are expected to increase flood risk significantly over the coming decades.