Lamar, TX Coastal Erosion Rate
Is the coast eroding 10.6 miles east of Lamar, TX?
Nothing alarming measured 10.6 miles east of Lamar, TX: whatever shift USGS's transects picked up here is too small to call reliably one way or the other, which this site reports as "no significant trend" rather than forcing a direction.
The grain of this number
Lamar, TX is the nearest named place, 10.6 miles away, to a ~3.5-mile stretch of coast USGS has surveyed - the reading below covers that whole stretch, not a single property in it. Segment center: 28.12, -96.82. USGS's Gulf of Mexico assessment last surveyed this stretch through 2001, 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 backs this reading up
This reading comes from 45 individual transects averaged together, 0% of which measured erosion rather than growth. USGS's confidence interval here is ±0.7 ft/yr. The unadjusted figure here, 0.2 ft/yr, would place it 920 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 2004-1089. Rank 1137 nationally for growth belongs to Atlantic City, NJ, 1495 miles from this stretch, measured at 1.38 ft/yr. Lamar, TX, 2 miles off, is the adjacent measured stretch, itself no significant trend.
Not this whole stretch, just Lamar itself: the Coastal Change Hazards Portal is USGS's own live version of this data.