Quinby, VA Coastal Erosion Rate
Shoreline change 5.4 miles southeast of Quinby, VA
Averaged across every transect USGS ran 5.4 miles southeast of Quinby, VA, the shoreline has been moving inland at 9.18 feet a year, a real measured rate, not a regional estimate applied to this stretch. At that rate, the shoreline has lost roughly 91.8 feet over the last decade.
The grain of this number
Quinby, VA is the nearest named place, 5.4 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: 37.51, -75.66. Survey years: 2007-2009, method LRR, from USGS's New England / Mid-Atlantic shoreline-change assessment. That's how current the data is here, real, but not a live feed, since a shoreline survey is a major undertaking, not an annual check-in.
What 9.18 ft/yr means over time
Run 5.4 miles southeast of Quinby, VA's 9.18 ft/yr rate forward 25 years and it implies about 230 feet of further retreat, assuming nothing changes, which is exactly the assumption a seawall or nourishment project exists to break.
Where this fits nationally
70 transects feed this segment's number; 100% of them individually measured retreat. Uncertainty on this specific number: 2.91 ft/yr either side. This segment ranks 24 of 1211 measured US coastal segments, ordered from fastest erosion to fastest growth. Source: USGS Open-File Report 2010-1119. For scale: Gulf Breeze, FL, 825 miles away, ranks 205 of 1211 nationally for erosion, 0.93 ft/yr, 0.1x this stretch's rate. Quinby, VA, 1.9 miles off, is the adjacent measured stretch, reading severe erosion at 16.73 ft/yr.
One address near Quinby: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.