Grove City, FL Coastal Erosion Rate
Is the coast eroding 0.6 miles west of Grove City, FL?
Nothing alarming measured 0.6 miles west of Grove City, 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.
The grain of this number
Grove City, FL is the nearest named place, 0.6 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: 26.91, -82.34. 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
87 transects feed this segment's number; 28% of them individually measured retreat. The published margin on this reading runs ±1.65 ft/yr. The unadjusted figure here, 0.95 ft/yr, would place it 1099 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. Virginia Beach, VA sits at national rank 1017 for growth (0.47 ft/yr), one reference point among the 1211 scored segments, 783 miles from here. Grove City, FL, 2 miles off, is the adjacent measured stretch, reading severe erosion at 3.02 ft/yr.
Not this whole stretch, just Grove City itself: the Coastal Change Hazards Portal is USGS's own live version of this data.