Lompoc, CA Coastal Erosion Rate
Is the coast eroding 9.7 miles south of Lompoc, CA?
Nothing alarming measured 9.7 miles south of Lompoc, 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 "Lompoc" means on this page
Lompoc, CA is the nearest named place, 9.7 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: 34.53, -120.52. 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.
What backs this reading up
14 transects feed this segment's number; 100% of them individually measured retreat. The published margin on this reading runs ±0.23 ft/yr. The unadjusted figure here, -0.23 ft/yr, would place it 475 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: Coronado, CA, 231 miles away, ranks 1147 of 1211 nationally for growth, 1.69 ft/yr. 1.4 miles up the coast, Lompoc, CA shows 0.3 ft/yr of eroding.
One address near Lompoc: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.