Tiger Point, FL Coastal Erosion Rate
Is the coast eroding 0.7 miles southwest of Tiger Point, FL?
The coast 0.7 miles southwest of Tiger Point, FL shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
What this reading actually covers
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Tiger Point, FL into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 30.37°N, 87.06°W. 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
55 transects feed this segment's number; 98% of them individually measured retreat. The published margin on this reading runs ±0.62 ft/yr. Taken at face value, this segment's raw -0.11 ft/yr reading would land it 626 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2004-1089. For scale: Apalachicola, FL, 130 miles away, ranks 1163 of 1211 nationally for growth, 2.21 ft/yr. 1.5 miles away, Tiger Point, FL is the nearest other measured stretch: also no significant trend.
One address near Tiger Point: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.