Beach Haven, NJ Coastal Erosion Rate
What USGS measures 1.8 miles south of Beach Haven, NJ
2.7 feet a year: that is the measured retreat rate USGS's transects show for the coast 1.8 miles south of Beach Haven, NJ, averaged across the full historical record surveyed here. At that rate, the shoreline has lost roughly 27 feet over the last decade.
What this reading actually covers
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Beach Haven, NJ into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 39.55°N, 74.26°W. 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.
25 years at this rate
If 2.7 ft/yr holds for the next 25 years, the coast 1.8 miles south of Beach Haven, NJ would retreat roughly 68 more feet, a projection, not a certainty: erosion rates shift with storms, sediment supply and any armoring built in the meantime.
How solid is this number
125 transects feed this segment's number; 67% of them individually measured retreat. The published margin on this reading runs ±1.4 ft/yr. Sorted from fastest erosion to fastest growth across all 1211 measured segments nationally, this one lands at 103. Source: USGS Open-File Report 2010-1119. Rank 355 nationally for erosion belongs to Point Reyes Station, CA, 2586 miles from this stretch, measured at 0.4 ft/yr, 0.1x this stretch's rate. Beach Haven, NJ, 2 miles off, is the adjacent measured stretch, reading severe erosion at 8.24 ft/yr.
Beach Haven, NJ on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.