Muir Beach, CA Coastal Erosion Rate
Shoreline change 3 miles southeast of Muir Beach, CA
Nothing alarming measured 3 miles southeast of Muir Beach, 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.
The grain of this number
Muir Beach, CA is the nearest named place, 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: 37.83, -122.54. The survey behind it runs to 1852-2016, in USGS's California 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.
Where this fits nationally
This reading comes from 26 individual transects averaged together, 92% of which measured erosion rather than growth. USGS's confidence interval here is ±0.24 ft/yr. The unadjusted figure here, -0.19 ft/yr, would place it 517 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: Sanibel, FL, 2469 miles away, ranks 1176 of 1211 nationally for growth, 2.71 ft/yr. 2.8 miles away, Muir Beach, CA is the nearest other measured stretch: slight erosion at 0.48 ft/yr.
Muir Beach, CA on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.