Lamar, TX Coastal Erosion Rate
Shoreline change 8.4 miles southeast of Lamar, TX
The coast 8.4 miles southeast of Lamar, TX 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 Lamar, TX into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 28.05°N, 96.90°W. 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.
How solid is this number
This reading comes from 135 individual transects averaged together, 16% of which measured erosion rather than growth. Uncertainty on this specific number: 1.54 ft/yr either side. Taken at face value, this segment's raw 0.13 ft/yr reading would land it 873 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2004-1089. Bayport, NY sits at national rank 1083 for growth (0.83 ft/yr), one reference point among the 1211 scored segments, 1609 miles from here. 2.2 miles up the coast, Fulton, TX shows the same lack of a significant trend.
One address near Lamar: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.