Crescent City, CA Coastal Erosion Rate
Shoreline change 3.3 miles northwest of Crescent City, CA
3.3 miles northwest of Crescent City, CA: USGS's transects didn't pick up a trend here that beats the survey's own uncertainty. That's the majority case nationally, and for this stretch specifically it means the coast is holding, not that the data failed to find anything.
What "Crescent City" means on this page
This is a roughly 3.5-mile stretch of coast, not one address or parcel - USGS's own transects run every few hundred feet, but that's finer than any one property needs, so this page reports the stretch nearest Crescent City, CA. Centered near 41.80°N, 124.24°W. USGS's California assessment last surveyed this stretch through 1852-2016, computing the rate with its LRR method. Other US regions were surveyed in different years, sometimes decades apart, so this page states its own rather than implying one national vintage.
How solid is this number
This reading comes from 99 individual transects averaged together, 89% of which measured erosion rather than growth. USGS's confidence interval here is ±0.26 ft/yr. Taken at face value, this segment's raw -0.22 ft/yr reading would land it 484 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. West Sayville, NY sits at national rank 1057 for growth (0.66 ft/yr), one reference point among the 1211 scored segments, 2620 miles from here. 1.7 miles up the coast, Fort Dick, CA shows the same lack of a significant trend.
Not this whole stretch, just Crescent City itself: the Coastal Change Hazards Portal is USGS's own live version of this data.