Newport, OR Coastal Erosion Rate
Is the coast eroding 5 miles south of Newport, OR?
5 miles south of Newport, 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.
The grain of this number
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 Newport, OR. Centered near 44.55°N, 124.07°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
Averaging 98 separate transects produced this segment's rate, with 90% individually reading as erosion, rather than relying on any single survey line. Uncertainty on this specific number: 1.44 ft/yr either side. Taken at face value, this segment's raw -0.29 ft/yr reading would land it 410 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2012-1008. Margate City, NJ sits at national rank 1076 for growth (0.8 ft/yr), one reference point among the 1211 scored segments, 2533 miles from here. Bayshore, OR, 2.6 miles off, is the adjacent measured stretch, itself no significant trend.
One address near Newport: the Coastal Change Hazards Portal zooms past this stretch to the underlying map.