Carlsbad, CA Coastal Erosion Rate
Shoreline change 4 miles west of Carlsbad, CA
Nothing alarming measured 4 miles west of Carlsbad, CA: 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.
What "Carlsbad" means on this page
Carlsbad, CA is the nearest named place, 4 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: 33.15, -117.35. USGS's California assessment last surveyed this stretch through 1852-2016, 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.
Where this fits nationally
This reading comes from 125 individual transects averaged together, 34% of which measured erosion rather than growth. Uncertainty on this specific number: 0.18 ft/yr either side. The unadjusted figure here, 0.12 ft/yr, would place it 870 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 National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. For scale: Ocean Park, WA, 984 miles away, ranks 1180 of 1211 nationally for growth, 2.86 ft/yr. 2.3 miles away, Camp Pendleton South, CA is the nearest other measured stretch: also no significant trend.
One address near Carlsbad: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.