Leggett, CA Coastal Erosion Rate
What USGS measures 10.4 miles west of Leggett, CA
The coast 10.4 miles west of Leggett, 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 Leggett, CA into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 39.89°N, 123.92°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.
What backs this reading up
This reading comes from 8 individual transects averaged together, 63% of which measured erosion rather than growth. USGS's confidence interval here is ±0.39 ft/yr. Taken at face value, this segment's raw -0.16 ft/yr reading would land it 554 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: Beach Haven, NJ, 2605 miles away, ranks 995 of 1211 nationally for growth, 0.4 ft/yr. 1.8 miles away, Shelter Cove, CA is the nearest other measured stretch: slight erosion at 0.35 ft/yr.
Leggett, CA on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.