Biloxi, MS Coastal Erosion Rate
Is the coast eroding 13.9 miles south of Biloxi, MS?
Nothing alarming measured 13.9 miles south of Biloxi, MS: 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
Biloxi, MS is the nearest named place, 13.9 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: 30.23, -88.95. 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
Averaging 10 separate transects produced this segment's rate, with 100% individually reading as erosion, rather than relying on any single survey line. Uncertainty on this specific number: 4.44 ft/yr either side. The unadjusted figure here, -1.99 ft/yr, would place it 136 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 1053 nationally for growth belongs to Seal Beach, CA, 1719 miles from this stretch, measured at 0.63 ft/yr. 0.8 miles away, Biloxi, MS is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just Biloxi itself: the Coastal Change Hazards Portal is USGS's own live version of this data.