Anchor Bay, CA Coastal Erosion Rate
Is the coast eroding 1 miles southwest of Anchor Bay, CA?
The coast 1 miles southwest of Anchor Bay, 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 this reading actually covers
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Anchor Bay, CA into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 38.80°N, 123.59°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
21 transects feed this segment's number; 94% of them individually measured retreat. The published margin on this reading runs ±0.59 ft/yr. Taken at face value, this segment's raw -0.25 ft/yr reading would land it 443 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. Rank 1168 nationally for growth belongs to Longport, NJ, 2598 miles from this stretch, measured at 2.33 ft/yr. 4 miles up the coast, Anchor Bay, CA shows 0.58 ft/yr of accreting.
One address near Anchor Bay: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.