Montauk, NY Coastal Erosion Rate
Shoreline change 2.1 miles southwest of Montauk, NY
2.1 miles southwest of Montauk, NY: USGS's transects didn't pick up a trend here that beats the survey's own uncertainty. That's the majority case nationally, and for this stretch specifically it means the coast is holding, not that the data failed to find anything.
What this reading actually covers
This is a roughly 3.5-mile stretch of coast, not one address or parcel - USGS's own transects run every few hundred feet, but that's finer than any one property needs, so this page reports the stretch nearest Montauk, NY. Centered near 41.02°N, 71.97°W. Survey years: 2007-2009, method LRR, from USGS's New England / Mid-Atlantic shoreline-change assessment. That's how current the data is here, real, but not a live feed, since a shoreline survey is a major undertaking, not an annual check-in.
What backs this reading up
Averaging 6 separate transects produced this segment's rate, with 100% individually reading as erosion, rather than relying on any single survey line. USGS's confidence interval here is ±0.17 ft/yr. Taken at face value, this segment's raw -0.15 ft/yr reading would land it 561 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: Newport Beach, CA, 2545 miles away, ranks 1098 of 1211 nationally for growth, 0.94 ft/yr. Montauk, NY, 1.4 miles off, is the adjacent measured stretch, itself no significant trend.
One address near Montauk: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.