East Hampton, NY Coastal Erosion Rate
Shoreline change 0.6 miles south of East Hampton, NY
The coast 0.6 miles south of East Hampton, NY shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
What "East Hampton" means on this page
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest East Hampton, NY into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 40.94°N, 72.20°W. The survey behind it runs to 2007-2009, in USGS's New England / Mid-Atlantic assessment, using the LRR method. Shoreline surveys aren't repeated every year, so this is the most recent long-term measurement USGS has published for this coast, not a live reading.
How solid is this number
94 transects feed this segment's number; 62% of them individually measured retreat. USGS's confidence interval here is ±0.13 ft/yr. Taken at face value, this segment's raw -0.08 ft/yr reading would land it 672 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2010-1119. For scale: Texas City, TX, 1495 miles away, ranks 1179 of 1211 nationally for growth, 2.85 ft/yr. 2.2 miles away, Sagaponack, NY is the nearest other measured stretch: slight erosion at 0.49 ft/yr.
Not this whole stretch, just East Hampton itself: the Coastal Change Hazards Portal is USGS's own live version of this data.