Quintana, TX Coastal Erosion Rate
What USGS measures 0.9 miles north of Quintana, TX
Good news, and an honest one: USGS's data can't distinguish this stretch, 0.9 miles north of Quintana, TX, from a flat trend. Whatever small movement it measured here is statistical noise, not a reliable direction, so none is claimed.
The grain of this number
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 Quintana, TX, rather than showing one arbitrary line. Segment center: 28.93, -95.33. Survey years: 2001, method LRR, from USGS's Gulf of Mexico 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.
Where this fits nationally
21 transects feed this segment's number; 0% of them individually measured retreat. The published margin on this reading runs ±16.23 ft/yr. The unadjusted figure here, 1.66 ft/yr, would place it 1146 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 933 nationally for growth belongs to Kennebunkport, ME, 1697 miles from this stretch, measured at 0.22 ft/yr. 1.9 miles away, Surfside Beach, TX is the nearest other measured stretch: also no significant trend.
Quintana, TX on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.