Bayshore, OR Coastal Erosion Rate
Is the coast eroding 5 miles north of Bayshore, OR?
5 miles north of Bayshore, OR: 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.
The grain of this number
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 Bayshore, OR. Centered near 44.51°N, 124.07°W. USGS's Pacific Northwest assessment last surveyed this stretch through 2002-2011, 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.
Where this fits nationally
This reading comes from 44 individual transects averaged together, 82% of which measured erosion rather than growth. Uncertainty on this specific number: 0.86 ft/yr either side. Taken at face value, this segment's raw -0.13 ft/yr reading would land it 599 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2012-1008. Camp Pendleton South, CA sits at national rank 1005 for growth (0.44 ft/yr), one reference point among the 1211 scored segments, 850 miles from here. 2.3 miles up the coast, Bayshore, OR shows the same lack of a significant trend.
Bayshore, OR on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.