Avalon, NJ Coastal Erosion Rate
Is the coast eroding right at Avalon, NJ?
Nothing alarming measured right at Avalon, NJ: whatever shift USGS's transects picked up here is too small to call reliably one way or the other, which this site reports as "no significant trend" rather than forcing a direction.
The grain of this number
Avalon, NJ is the nearest named place, 0.2 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: 39.09, -74.74. 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
This reading comes from 61 individual transects averaged together, 34% of which measured erosion rather than growth. USGS's confidence interval here is ±0.85 ft/yr. The unadjusted figure here, 0.62 ft/yr, would place it 1050 of 1211 if ranked directly - but an unreliable rank isn't a useful one, which is exactly why "no significant trend" is the headline instead. Source: USGS Open-File Report 2010-1119. Rank 1190 nationally for growth belongs to Copalis Beach, WA, 2511 miles from this stretch, measured at 3.87 ft/yr. Avalon, NJ, 1.5 miles off, is the adjacent measured stretch, reading accretion (beach growing) at 2.37 ft/yr.
Not this whole stretch, just Avalon itself: the Coastal Change Hazards Portal is USGS's own live version of this data.