Port Hueneme, CA Coastal Erosion Rate
Shoreline change 7.4 miles southeast of Port Hueneme, CA
Nothing alarming measured 7.4 miles southeast of Port Hueneme, CA: whatever shift USGS's transects picked up here is too small to call reliably one way or the other, which this site reports as "no significant trend" rather than forcing a direction.
The grain of this number
Port Hueneme, CA is the nearest named place, 7.4 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: 34.10, -119.10. The survey behind it runs to 1852-2016, in USGS's California 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
This reading comes from 100 individual transects averaged together, 92% of which measured erosion rather than growth. USGS's confidence interval here is ±0.45 ft/yr. The unadjusted figure here, -0.26 ft/yr, would place it 435 of 1211 if ranked directly - but an unreliable rank isn't a useful one, which is exactly why "no significant trend" is the headline instead. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. Rank 1053 nationally for growth belongs to Seal Beach, CA, 64 miles from this stretch, measured at 0.63 ft/yr. Port Hueneme, CA, 2.8 miles off, is the adjacent measured stretch, reading slight erosion at 0.57 ft/yr.
Not this whole stretch, just Port Hueneme itself: the Coastal Change Hazards Portal is USGS's own live version of this data.