Klamath, CA Coastal Erosion Rate
Is the coast eroding 5.3 miles south of Klamath, CA?
Nothing alarming measured 5.3 miles south of Klamath, 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 "Klamath" means on this page
Klamath, CA is the nearest named place, 5.3 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: 41.50, -124.07. Survey years: 1852-2016, method LRR, from USGS's California 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
5 transects feed this segment's number; 40% of them individually measured retreat. USGS's confidence interval here is ±1.67 ft/yr. The unadjusted figure here, 0.05 ft/yr, would place it 821 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. Rank 1172 nationally for growth belongs to East Atlantic Beach, NY, 2588 miles from this stretch, measured at 2.39 ft/yr. 1.1 miles up the coast, Klamath, CA shows the same lack of a significant trend.
Not this whole stretch, just Klamath itself: the Coastal Change Hazards Portal is USGS's own live version of this data.