San Buenaventura (Ventura), CA Coastal Erosion Rate
What USGS measures 3.3 miles west of San Buenaventura (Ventura), CA
The coast 3.3 miles west of San Buenaventura (Ventura), CA has been retreating at a measured 0.25 feet a year, USGS's own long-term rate for this stretch, built from historical shoreline positions rather than a single survey. At that rate, the shoreline has lost roughly 2.5 feet over the last decade.
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 San Buenaventura (Ventura), CA. Centered near 34.28°N, 119.31°W. 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.
25 years at this rate
If 0.25 ft/yr holds for the next 25 years, the coast 3.3 miles west of San Buenaventura (Ventura), CA would retreat roughly 6 more feet, a projection, not a certainty: erosion rates shift with storms, sediment supply and any armoring built in the meantime.
Where this fits nationally
Averaging 51 separate transects produced this segment's rate, with 78% individually reading as erosion, rather than relying on any single survey line. USGS's confidence interval here is ±0.15 ft/yr. Among the 1211 US coastal segments with a measurable trend, this one ranks 450 for erosion, 1 being the fastest-retreating coast in the dataset. Source: USGS National Shoreline Change data release (ScienceBase, DOI 10.5066/P94J0K7Z), Kratzmann 2024 / Data Report 1187. Hingham, MA sits at national rank 560 for erosion (0.15 ft/yr), one reference point among the 1211 scored segments, 2649 miles from here. 1.2 miles away, San Buenaventura (Ventura), CA is the nearest other measured stretch: also no significant trend.
One address near San Buenaventura (Ventura): the Coastal Change Hazards Portal zooms past this stretch to the underlying map.