Langlois, OR Coastal Erosion Rate
Is the coast eroding 2.5 miles southwest of Langlois, OR?
The coast 2.5 miles southwest of Langlois, OR shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
What this reading actually covers
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Langlois, OR into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 42.91°N, 124.50°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
67 transects feed this segment's number; 90% of them individually measured retreat. The published margin on this reading runs ±1.01 ft/yr. Taken at face value, this segment's raw -0.12 ft/yr reading would land it 614 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2012-1008. Chincoteague, VA sits at national rank 1210 for growth (11.04 ft/yr), one reference point among the 1211 scored segments, 2571 miles from here. Langlois, OR, 2 miles off, is the adjacent measured stretch, itself no significant trend.
Not this whole stretch, just Langlois itself: the Coastal Change Hazards Portal is USGS's own live version of this data.