What Is Avulsion?
Avulsion is the rapid, sudden, and perceptible change in a shoreline or landmass caused by violent forces of nature. In Florida, avulsion most commonly occurs during hurricanes, severe tropical storms, or flash floods when massive amounts of sand are washed away from a beach or a river suddenly cuts a new channel.
Avulsion vs. Accretion
The legal distinction between avulsion and accretion is critical for waterfront property owners:
- Accretion is the gradual and imperceptible addition of land. When accretion occurs, the legal property boundary shifts outward to follow the new waterline.
- Avulsion is the sudden and perceptible change of land. When avulsion occurs, the legal property boundaries remain exactly where they were before the event.
The Legal Impact of Avulsion in Florida
Because avulsion does not change legal boundaries, it creates unique situations for coastal and riverfront property owners in Florida:
- Loss of land — If a hurricane washes away 50 feet of beachfront property, the property owner still legally owns that 50-foot area, even though it is now underwater. The boundary does not retreat with the shoreline. The owner generally has the right to restore the land to its previous condition (subject to environmental permitting).
- Addition of land — If a storm suddenly deposits a massive sandbar against a property, extending the dry beach by 50 feet, the property owner does not gain title to that new land. The state retains ownership of the area that was previously sovereign submerged land.
- River course changes — If a river suddenly jumps its banks and carves a new channel through a property, the boundary lines of the properties bordering the old riverbed do not move.
Restoration and Permitting
While a property owner retains title to land submerged by avulsion, filling it back in is not automatic. The owner must obtain emergency or standard permits from the Florida Department of Environmental Protection (DEP) and potentially the Army Corps of Engineers to restore the shoreline to its pre-storm boundaries.
Related Terms
- Accretion — Gradual addition of land (changes boundaries)
- Riparian Rights — Rights associated with waterfront ownership
- Boundary Dispute — Can arise following severe storms
Barnes Walker Waterfront Services
Barnes Walker's attorneys advise coastal property owners on boundary determinations and riparian rights following hurricane avulsion events. Request a legal inquiry for assistance.
Reviewed by the attorneys at Barnes Walker, Goethe, Shea & Robinson, PLLC