Ocean Park, WA Coastal Erosion Rate
What USGS measures 0.7 miles west of Ocean Park, WA
0.7 miles west of Ocean Park, WA, the coast is advancing, not retreating, at a measured 1.87 feet a year, sediment accumulating faster than any erosion USGS recorded here. At that rate, the shoreline has gained roughly 18.7 feet over the last decade.
What "Ocean Park" means on this page
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 Ocean Park, WA, rather than showing one arbitrary line. Segment center: 46.50, -124.05. 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.
What 1.87 ft/yr means over time
Holding the 1.87 ft/yr accretion rate 0.7 miles west of Ocean Park, WA for 25 years would add roughly 47 feet of shoreline, again assuming nothing about the local sediment supply changes.
How solid is this number
This reading comes from 111 individual transects averaged together, 0% of which measured erosion rather than growth. The published margin on this reading runs ±0.5 ft/yr. This segment ranks 1154 of 1211 measured US coastal segments, ordered from fastest erosion to fastest growth. Source: USGS Open-File Report 2012-1008. Huntington Beach, CA sits at national rank 993 for growth (0.39 ft/yr), one reference point among the 1211 scored segments, 939 miles from here. 3.4 miles away, Ocean Park, WA is the nearest other measured stretch: accretion (beach growing) at 2.86 ft/yr.
One address near Ocean Park: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.