Seawall Erosion Repair in Fort Myers, FL | Foam Injection

ClientRestores Storm-Damaged Seawall After Hurricane Ian

LocationFort Myers, Florida

Date09/12/2025

Innovative Foam Injection by Seawall Savers™ Restores Storm-Damaged Seawall After Hurricane Ian

The Challenge: Erosion Caused by Hurricane Ian

The 200-foot residential seawall suffered partial structural undermining from Hurricane Ian’s storm surge and excessive runoff. Located on Carrol Canal, a main discharge channel for the City of Fort Myers, the property was hit by:

🔷 High-Velocity Stormwater: Eroded berm at the seawall’s base.
🔷 Substantial Void Formation: Undermining caused major soil loss under the upland retaining wall.
🔷 Backyard Instability: Soil displacement threatened landscaping and property safety.

Recognizing Seawall Erosion Warning Signs

Homeowners should look for the following signs of seawall failure:

🔷 Visible Depressions behind the seawall indicating erosion.
🔷 Erosion at the Base causing “kick out” or shifting of the lower panels.
🔷 Leaning Walls signaling structural instability or failed tiebacks.

Engineering-Driven Repair Strategy

Seawall Savers™ collaborated with a Fort Myers marine consulting engineer to design a long-term solution. Key design priorities included:

🔷 Durability of foam materials in a harsh saltwater environment.
🔷 Sealing approximately 200 feet of the upland wall.
🔷 Longevity through deep injection depth and material strength.

The Deep Foam Injection Process

Trial Injections: Conducted at 6 locations to validate effectiveness.
Determining Injection Points: Holes drilled at 18–24″ on center.
Steel Probe Insertion: ½” steel pipes used for accurate depth targeting.
Controlled Foam Injection: Ensured precise delivery and expansion.
Rapid Curing: Foam reached 90% compressive strength in 15 minutes.

This method minimized landscape damage and was approved by the City of Fort Myers after quality control review.

Materials Used in Seawall Repair

🔷 360 Steel Injection Probes (½”)
🔷 4,073 Pounds of SW-RP1 High-Density Polyurethane Foam
🔷 36 Cubic Yards of Clean Sand for void backfilling
🔷 800 Square Feet of St. Augustine Sod to restore landscaping

Project Stakeholders

🔷 Foam Engineering Partner: Alchatek Chemical Grouts
🔷 Contractor: Seawall Savers™
🔷 Coastal Engineering Consultants: Hans Wilson and Associates

Project Outcome

✅ Stabilized Seawall Structure
✅ Minimal Environmental Disruption
✅ Fast Completion with Long-Term Protection

The homeowner now has a durable, erosion-resistant seawall capable of withstanding future storm events.

Protect Your Waterfront Investment

Ensure your seawall is storm-ready. Book a professional inspection and get an engineered maintenance plan tailored to your property’s needs.

Call: Seawall Savers™ 239-284-6830

Frequently Asked Questions (FAQ)

Why was foam injection selected over traditional seawall replacement?

Foam injection is minimally invasive, cost-effective, and provides strong, long-lasting stabilization without the need to remove or replace the existing wall.

What is high-density polyurethane foam and how does it work?

This foam expands upon injection, filling voids beneath the seawall and bonding with surrounding soils. It cures rapidly, providing structural support in minutes.

How deep were the injections made?

Foam was injected at depths between 7 to 9 feet to match the seawall’s foundation depth and counteract erosion at the base.

Is foam safe for the environment?

Yes. The foam used is environmentally friendly and inert once cured. It prevents further erosion without leaching harmful substances.

Will this repair method affect my landscaping?

No. The injection method requires only small drill points and minimal surface disturbance, which is why new sod was quickly installed post-repair.

How long will the repair last?

With proper maintenance, this method can significantly extend the life of the seawall—often by 10 years or more, depending on site conditions.

Contact Us for Expert Seawall Repair in Fort Myers

Protect your waterfront investment now! Schedule a professional seawall inspection and maintenance proposal to increase seawall structures longevity and protect against erosion. Contact Seawall Savers™ today for expert repairs and peace of mind.

Expert Seawall Maintenance: 239-284-6830

Erosion Control Repair in Fort Myers, Florida