Tierra Verde, FL Coastal Erosion Rate
What USGS measures 4.6 miles south of Tierra Verde, FL
Nothing alarming measured 4.6 miles south of Tierra Verde, FL: 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.
What this reading actually covers
Tierra Verde, FL is the nearest named place, 4.6 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: 27.60, -82.75. 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.
What backs this reading up
72 transects feed this segment's number; 100% of them individually measured retreat. Uncertainty on this specific number: 1.97 ft/yr either side. The unadjusted figure here, -1.45 ft/yr, would place it 161 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 1211 nationally for growth belongs to Ocean Shores, WA, 2598 miles from this stretch, measured at 12.13 ft/yr. 3 miles up the coast, Tierra Verde, FL shows the same lack of a significant trend.
Not this whole stretch, just Tierra Verde itself: the Coastal Change Hazards Portal is USGS's own live version of this data.