Bolinas, CA Coastal Erosion Rate
Shoreline change 5.1 miles northwest of Bolinas, CA
Nothing alarming measured 5.1 miles northwest of Bolinas, 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 "Bolinas" means on this page
Bolinas, CA is the nearest named place, 5.1 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: 37.96, -122.79. 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
72 transects feed this segment's number; 92% of them individually measured retreat. Uncertainty on this specific number: 0.26 ft/yr either side. The unadjusted figure here, -0.15 ft/yr, would place it 571 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 919 nationally for growth belongs to Smith River, CA, 288 miles from this stretch, measured at 0.19 ft/yr. 2.3 miles up the coast, Point Reyes Station, CA shows 0.4 ft/yr of eroding.
Not this whole stretch, just Bolinas itself: the Coastal Change Hazards Portal is USGS's own live version of this data.