Shinnecock Hills, NY Coastal Erosion Rate
Shoreline change 2.5 miles south of Shinnecock Hills, NY
The coast 2.5 miles south of Shinnecock Hills, NY is actually gaining ground, not losing it: USGS's transects measure 0.39 feet of accretion a year here, sediment building up rather than washing away. At that rate, the shoreline has gained roughly 3.9 feet over the last decade.
What "Shinnecock Hills" means on this page
Shinnecock Hills, NY is the nearest named place, 2.5 miles away, to a ~3.5-mile stretch of coast USGS has surveyed - the reading below covers that whole stretch, not a single property in it. Segment center: 40.85, -72.45. USGS's New England / Mid-Atlantic assessment last surveyed this stretch through 2007-2009, computing the rate with its LRR method. Other US regions were surveyed in different years, sometimes decades apart, so this page states its own rather than implying one national vintage.
What 0.39 ft/yr means over time
Holding the 0.39 ft/yr accretion rate 2.5 miles south of Shinnecock Hills, NY for 25 years would add roughly 10 feet of shoreline, again assuming nothing about the local sediment supply changes.
What backs this reading up
Averaging 92 separate transects produced this segment's rate, with 10% individually reading as erosion, rather than relying on any single survey line. The published margin on this reading runs ±0.33 ft/yr. Sorted from fastest erosion to fastest growth across all 1211 measured segments nationally, this one lands at 991. Source: USGS Open-File Report 2010-1119. Seadrift, TX sits at national rank 1150 for growth (1.79 ft/yr), one reference point among the 1211 scored segments, 1614 miles from here. 2.6 miles away, Southampton, NY is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just Shinnecock Hills itself: the Coastal Change Hazards Portal is USGS's own live version of this data.