Nantucket's $10M Bluff Homes Are Falling Into The Atlantic — And Owners Are Giving Them Away

Nantucket is not an island in the way most people picture one. It is a terminal moraine — a pile of sand, gravel and clay dumped by a retreating glacier roughly twenty thousand years ago. There is no bedrock underneath it. On the east-facing bluff at Siasconset, that unconsolidated material meets the open Atlantic with nothing between it and Portugal. The bank does not wear away gradually. It undercuts and slumps, and in some years the loss has been measured in tens of feet rather than inches. Houses built along that edge in the nineteenth and twentieth centuries have been lifted onto trailers and moved inland. A structure relocated forty feet back has bought somewhere between eight and thirteen years. Others have been offered for nominal sums to anyone willing to haul them away before the ground goes — not as a gesture, but because demolition and debris removal on a bluff reachable only through neighbouring property can cost more than the structure is worth. A private geotextile tube project was installed at the base of the bluff and became the subject of years of regulatory dispute. Massachusetts restricts hard armouring of eroding coastal banks, and not out of neglect — armour does not remove erosion, it redirects it, and the bank next door retreats faster. Moving the house does not move the edge. Sourced from the USGS, the Massachusetts Office of Coastal Zone Management, Nantucket town and conservation commission records, and Nantucket County assessor data. Is there an eroding island, a retreating moraine or a bluff edge you think deserves this kind of examination? Name it in the comments. That is where the next video comes from. New investigation every Tuesday. #Nantucket #Siasconset #Massachusetts #CoastalErosion #RealEstate #NewEngland #BluffErosion #SeaLevelRise