Miramar Beach, FL Coastal Erosion Rate
What USGS measures 3.7 miles northwest of Miramar Beach, FL
Nothing alarming measured 3.7 miles northwest of Miramar Beach, 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
Miramar Beach, FL is the nearest named place, 3.7 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: 30.41, -86.40. 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.
How solid is this number
This reading comes from 93 individual transects averaged together, 83% of which measured erosion rather than growth. Uncertainty on this specific number: 0.35 ft/yr either side. The unadjusted figure here, -0.11 ft/yr, would place it 627 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. Costa Mesa, CA sits at national rank 1140 for growth (1.48 ft/yr), one reference point among the 1211 scored segments, 1855 miles from here. 2.9 miles up the coast, Destin, FL shows the same lack of a significant trend.
One address near Miramar Beach: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.