Riviera, TX Coastal Erosion Rate
What USGS measures 26.7 miles east of Riviera, TX
The coast 26.7 miles east of Riviera, 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 Riviera, TX into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 27.30°N, 97.36°W. The survey behind it runs to 2001, in USGS's Gulf of Mexico assessment, using the LRR method. Shoreline surveys aren't repeated every year, so this is the most recent long-term measurement USGS has published for this coast, not a live reading.
Where this fits nationally
113 transects feed this segment's number; 0% of them individually measured retreat. Uncertainty on this specific number: 0.57 ft/yr either side. Taken at face value, this segment's raw 0.46 ft/yr reading would land it 1012 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2004-1089. Rank 1029 nationally for growth belongs to Dillon Beach, CA, 1658 miles from this stretch, measured at 0.53 ft/yr. 2.6 miles away, Sarita, TX is the nearest other measured stretch: also no significant trend.
One address near Riviera: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.