Warrenton, OR Coastal Erosion Rate
What USGS measures 2.1 miles southwest of Warrenton, OR
The coast 2.1 miles southwest of Warrenton, OR is actually gaining ground, not losing it: USGS's transects measure 4.41 feet of accretion a year here, sediment building up rather than washing away. At that rate, the shoreline has gained roughly 44.1 feet over the last decade.
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: 46.15, -123.96. Survey years: 2002-2011, method LRR, from USGS's Pacific Northwest shoreline-change assessment. That's how current the data is here, real, but not a live feed, since a shoreline survey is a major undertaking, not an annual check-in.
What 4.41 ft/yr means over time
Holding the 4.41 ft/yr accretion rate 2.1 miles southwest of Warrenton, OR for 25 years would add roughly 110 feet of shoreline, again assuming nothing about the local sediment supply changes.
Where this fits nationally
Averaging 114 separate transects produced this segment's rate, with 0% individually reading as erosion, rather than relying on any single survey line. USGS's confidence interval here is ±2.09 ft/yr. This segment ranks 1195 of 1211 measured US coastal segments, ordered from fastest erosion to fastest growth. Source: USGS Open-File Report 2012-1008. Marina del Rey, CA sits at national rank 1118 for growth (1.07 ft/yr), one reference point among the 1211 scored segments, 891 miles from here. 2.5 miles away, Warrenton, OR is the nearest other measured stretch: accretion (beach growing) at 4.64 ft/yr.
Not this whole stretch, just Warrenton itself: the Coastal Change Hazards Portal is USGS's own live version of this data.