Port Orford, OR Coastal Erosion Rate
Shoreline change 4 miles southeast of Port Orford, OR
4 miles southeast of Port Orford, OR: USGS's transects didn't pick up a trend here that beats the survey's own uncertainty. That's the majority case nationally, and for this stretch specifically it means the coast is holding, not that the data failed to find anything.
What "Port Orford" means on this page
This is a roughly 3.5-mile stretch of coast, not one address or parcel - USGS's own transects run every few hundred feet, but that's finer than any one property needs, so this page reports the stretch nearest Port Orford, OR. Centered near 42.70°N, 124.45°W. USGS's Pacific Northwest assessment last surveyed this stretch through 2002-2011, 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
This reading comes from 45 individual transects averaged together, 91% of which measured erosion rather than growth. USGS's confidence interval here is ±1.68 ft/yr. Taken at face value, this segment's raw -0.45 ft/yr reading would land it 324 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2012-1008. Rank 1157 nationally for growth belongs to Fields Landing, CA, 136 miles from this stretch, measured at 2.04 ft/yr. 4.4 miles up the coast, Port Orford, OR shows the same lack of a significant trend.
Port Orford, OR on the source map: try the Coastal Change Hazards Portal, zoomable well past this page's ~3.5-mile grain.