Warrenton, OR Coastal Erosion Rate
What USGS measures 5.1 miles northwest of Warrenton, OR
Good news, and an honest one: USGS's data can't distinguish this stretch, 5.1 miles northwest of Warrenton, OR, from a flat trend. Whatever small movement it measured here is statistical noise, not a reliable direction, so none is claimed.
What this reading actually covers
USGS surveys the coast in transects spaced a few hundred feet apart; this page groups the nearest ones into a single ~3.5-mile reading for the stretch closest to Warrenton, OR, rather than showing one arbitrary line. Segment center: 46.23, -124.01. The survey behind it runs to 2002-2011, in USGS's Pacific Northwest 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
3 transects feed this segment's number; 100% of them individually measured retreat. Uncertainty on this specific number: 5.15 ft/yr either side. The unadjusted figure here, -3.45 ft/yr, would place it 84 of 1211 if ranked directly - but an unreliable rank isn't a useful one, which is exactly why "no significant trend" is the headline instead. Source: USGS Open-File Report 2012-1008. Pajaro Dunes, CA sits at national rank 1011 for growth (0.45 ft/yr), one reference point among the 1211 scored segments, 656 miles from here. 1.6 miles away, Warrenton, OR is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just Warrenton itself: the Coastal Change Hazards Portal is USGS's own live version of this data.