Port O'Connor, TX Coastal Erosion Rate
Is the coast eroding 10.3 miles southwest of Port O'Connor, TX?
The coast 10.3 miles southwest of Port O'Connor, TX is actually gaining ground, not losing it: USGS's transects measure 2.77 feet of accretion a year here, sediment building up rather than washing away. At that rate, the shoreline has gained roughly 27.7 feet over the last decade.
What this reading actually covers
Port O'Connor, TX is the nearest named place, 10.3 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: 28.31, -96.50. Survey years: 2001, method LRR, from USGS's Gulf of Mexico 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 2.77 ft/yr means over time
Holding the 2.77 ft/yr accretion rate 10.3 miles southwest of Port O'Connor, TX for 25 years would add roughly 69 feet of shoreline, again assuming nothing about the local sediment supply changes.
Where this fits nationally
Averaging 106 separate transects produced this segment's rate, with 0% individually reading as erosion, rather than relying on any single survey line. Uncertainty on this specific number: 2.75 ft/yr either side. This segment ranks 1177 of 1211 measured US coastal segments, ordered from fastest erosion to fastest growth. Source: USGS Open-File Report 2004-1089. For scale: North Wildwood, NJ, 1444 miles away, ranks 1193 of 1211 nationally for growth, 4.21 ft/yr, 1.5x this stretch's rate. 1.7 miles away, Port O'Connor, TX is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just Port O'Connor itself: the Coastal Change Hazards Portal is USGS's own live version of this data.