Anna Maria, FL Coastal Erosion Rate
Shoreline change 0.3 miles northeast of Anna Maria, FL
Nothing alarming measured 0.3 miles northeast of Anna Maria, 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
Anna Maria, FL is the nearest named place, 0.3 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: 27.53, -82.73. 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.
How solid is this number
Averaging 28 separate transects produced this segment's rate, with 0% individually reading as erosion, rather than relying on any single survey line. The published margin on this reading runs ±3.03 ft/yr. The unadjusted figure here, 0.63 ft/yr, would place it 1051 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 1197 nationally for growth belongs to Grand Isle, LA, 456 miles from this stretch, measured at 4.73 ft/yr. Anna Maria, FL, 0.7 miles off, is the adjacent measured stretch, itself no significant trend.
One address near Anna Maria: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.