Seawall Storm Damage

What Storm Damage Looks Like and Why It Happens

NOAA's National Hurricane Center defines storm surge as an abnormal rise of water generated by a storm, over and above the predicted astronomical tide, and notes that neither surge nor storm tide figures include the waves riding on top. Surge can also travel up rivers and canals. So the water and wave height that reaches a seawall can be well above the official surge number, even on interior waterways.

• Overtopping. The U.S. Army Corps of Engineers' shore protection guide notes that white spray does little damage but solid green water coming over a structure can erode the ground behind it, and once backfill is gone, slabs and structures on the land lose support.
• Scour and undermining. Storm waves and currents strip the bottom in front of a wall. The Corps guide notes that vertical faces reflect wave energy, which can increase scour, and Fort Lauderdale's seawall master plan explains that undermining lets fill escape from beneath a wall while the ground behind it settles.
• Wave impact. The Fort Lauderdale plan also explains that waves breaking on seawalls create cyclical loads that can damage the cap or panels and reduce the passive soil pressure tiebacks rely on, and can erode fill behind a wall even without overtopping.
• Water trapped behind the wall. As surge recedes, water held in the backfill can drain slower than the water in front drops. Fort Lauderdale's plan calls proper drainage after a flooding event critical to seawall stability.
• Debris and vessel strikes. Loose docks, boats and debris driven by wind and current can hit the cap and face.

Lessons From Ian and Nicole on Florida's Northeast Coast

The Florida Department of Environmental Protection's post-storm report describes extensive seawall failures in Flagler and Volusia counties from Hurricane Ian, followed weeks later by additional extensive damage to seawalls and revetments in Volusia, Flagler and St. Johns counties from Nicole. In Volusia County, DEP reported the catastrophic collapse of 53 seawalls during Ian and listed the most outstanding problems: age, corroded reinforcement steel, inadequate tie-backs, insufficient pile penetration (short panels), inadequate wall thickness and lack of an adequate filter drainage system behind the walls.

DEP also noted that after Ian lowered the beach, walls faced much greater pressure and were exposed to the next storm, and that expectations of further failures proved to be an underestimate when Nicole arrived. Those were oceanfront walls, but the weak points are the same ones canal and river walls have, and a wall damaged in one storm is usually more vulnerable in the next.

Safety First After a Storm

1. 1Stay Back From the EdgeGround behind a damaged wall can be hollow where backfill washed out. Keep people, pets, vehicles and equipment away from the cap and the strip behind it.
2. 2Stay Out of the WaterDamaged walls, docks and debris can shift without warning. Do not wade, swim or work in the water near a damaged wall.
3. 3Treat Electrical Equipment as LiveDock lighting, lifts and outlets near the water may have been flooded. Leave them off until a qualified electrician has checked them.
4. 4Do Not Start Moving FillPushing soil back into a washout or stacking material on a damaged wall can add load and hide damage. Wait for an assessment.
5. 5Call Authorities for Public HazardsIf a collapse threatens a road, a neighbor's structure or public safety, contact your local government or emergency services.

Documenting Damage for Insurance

Coverage is a question for your policy and your insurer, and Florida Bulk Head cannot tell you what is covered. A few facts help set expectations. A published FEMA flood insurance appeal decision states that the Standard Flood Insurance Policy does not cover retaining walls, seawalls, bulkheads, wharves, piers and docks, and that the policy requires the insurer or its representative to be shown the damaged property. The Florida Department of Financial Services notes that standard homeowners policies do not cover flood damage. Private flood, wind, homeowners and condominium association policies differ, so read the property-covered and exclusions sections of yours and ask questions in writing.

The Department of Financial Services runs a free Insurance Consumer Helpline at 1-877-MY-FL-CFO (1-877-693-5236) for questions about claims and coverage.

How Professionals Assess Storm Damage

Post-storm assessment usually happens in two passes. The first is triage: is the wall stable enough to leave, does anything need temporary stabilization, and is there a hazard to people or buildings. The second is a fuller inspection once water levels and access allow, covering the face, cap, joints, anchors, toe and the ground behind the wall, often with a diver for the lower wall. Top-of-wall elevation is worth checking too, since Fort Lauderdale's inspectors confirmed wall heights in NAVD 88 to judge overtopping risk. Where damage is structural, a Florida-licensed professional engineer may be needed for the repair design.

Repair Approaches and Post-Storm Permits

Repairs follow the damage: restoring scour protection at the toe, rebuilding broken cap sections, re-anchoring walls that moved, sealing joints, replacing destroyed sections and, once the wall is secure, restoring and compacting backfill. Badly damaged walls may be replaced, sometimes by building a new wall directly in front of the old one.

• State emergency orders. After major storms, DEP has issued storm-specific emergency final orders. Its post-storm permitting guidance describes their intent as letting people repair what was legally there immediately before the hurricane, while replacing structures that were completely destroyed may need a field or individual authorization with deadlines set by each order. Current orders are posted on DEP's hurricane information page (opens in a new tab).
• The restoration exemption. Rule 62-330.051(12)(b) exempts restoring a seawall no more than 18 inches waterward of its previous location under conditions; for storm repairs, the wall must have been damaged or destroyed within the last year by a discrete event such as a storm, and any required coastal permits under Chapter 161 must be obtained.
• Federal maintenance permit. The Corps' 2026 Nationwide Permit 3 (opens in a new tab) covers repair or replacement of previously authorized structures damaged by storms if the work is commenced, or under contract to commence, within two years of the damage. After catastrophic events such as hurricanes, the district engineer may waive that limit if the permittee can show funding, contract or similar delays.
• Local and coastal permits. Local building permits still apply, and walls on sandy oceanfront beaches can also fall under DEP's Coastal Construction Control Line program.

Waiting, Temporary Fixes and the Next Storm

A damaged wall is weaker than it was, and the next high tide, rain event or storm loads it again. Washouts, rotation and toe loss can all keep progressing. Temporary stabilization, such as placing stone or bags at the toe or shoring a section, is sometimes needed before the full repair can be designed and permitted, and it should be planned by the contractor. Waiting also has a paperwork cost: some post-storm permit paths have time limits, so an early assessment keeps options open.

Preparing a Seawall Before Storm Season

Getting Help: Northeast Florida, Partner Regions and State Resources

Across Duval, St. Johns, Nassau, Clay, Flagler and Putnam counties, storm damage requests are handled directly by Barefoot Marine Construction, the company that owns and operates Florida Bulk Head. The steps are Request a Quote, Site Assessment, Plan & Permit, Build or Repair, and Protect Your Property. After a storm, send your documentation photos with the request, including any pre-storm baseline, so triage can start from what you have already recorded.

Elsewhere in the state, storm damage inquiries are accepted for the partner network Florida Bulk Head is developing. No partner contractors are confirmed, and a match is never assured; it depends on contractor availability in your area. See Find a Contractor, or use the Seawall Health Check to sort out what you are seeing.