Shelter Cove, CA Coastal Erosion Rate
What USGS measures 4 miles southeast of Shelter Cove, CA
The coast 4 miles southeast of Shelter Cove, CA shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
What "Shelter Cove" means on this page
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Shelter Cove, CA into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 39.99°N, 124.01°W. 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
43 transects feed this segment's number; 100% of them individually measured retreat. The published margin on this reading runs ±0.71 ft/yr. Taken at face value, this segment's raw -0.43 ft/yr reading would land it 338 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. For scale: Sanibel, FL, 2572 miles away, ranks 1104 of 1211 nationally for growth, 0.99 ft/yr. 2.2 miles away, Shelter Cove, CA is the nearest other measured stretch: also no significant trend.
One address near Shelter Cove: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.