In the CPH-Valencia Water District of Orlando, FL, a critical dam structure was showing advanced signs of instability. Years of soil loss and progressive erosion had weakened its foundation, creating voids and reducing load-bearing capacity.

This was more than a maintenance concern—it was a public safety and operational risk. Left unaddressed, the instability could have led to:

• Structural failure of the dam
• Disruption of essential water management operations
• Potential environmental damage and economic losses

Recognizing the urgency, the water district called on Helicon to deliver a reliable, long-lasting stabilization solution that would halt further degradation and restore the dam’s integrity.

While much of Helicon’s work involves residential foundation repair, our team also specializes in high-stakes commercial and infrastructure projects—including work for organizations like NASA.

Stabilizing a dam presents unique challenges:

• Scale and access – A large structure with multiple erosion points
• Moisture-rich environment – Materials must perform in saturated conditions
• Long-term resilience – Solution must withstand decades of water pressure and weather exposure

For this project, Helicon selected AP600 polyurethane grout, a high-performance hydrophobic resin specifically engineered for geotechnical stabilization in wet environments.

Step 1 – Targeted Injection Strategy

Our crew identified and mapped the most erosion-affected sections of the dam. Precision drilling allowed us to place injection points directly into compromised soil zones along the dam’s length.

Step 2 – AP600 Polyurethane Injection

• Total material used: 394 gallons of AP600
• Reaction process: Upon contact with moisture, AP600 expanded rapidly to fill voids and permeate loose or sandy soils
• Resulting structure: A dense, closed-cell, water-impermeable mass that prevents further washout

Step 3 – Strength & Adhesion

Unlike traditional cement grouts that can crack or deteriorate over time, AP600 forms a permanent bond with surrounding soils and structures. This ensures:

• Long-term stability
• Resistance to shifting, even in saturated conditions
• Ongoing erosion control without repeated maintenance

Why AP600 is Ideal for Dam & Infrastructure Projects

• Hydrophobic reaction – Expands in the presence of water, perfect for wet environments
• High compressive strength – Reinforces load-bearing soils for decades
• Permanent bonding – Prevents separation or loss of integrity over time
• Fast installation – This project was completed in just five days with minimal disruption

The Results

The CPH-Valencia dam is now:

• Structurally reinforced against further settlement or erosion
• Protected by a water-impermeable foundation layer
• Stable enough to ensure uninterrupted water district operations

By addressing the problem at its source, Helicon delivered a long-term, low-maintenance solution that will safeguard the dam for decades to come.

Helicon – Infrastructure Stabilization Experts in Florida

From dams and levees to commercial and municipal projects, Helicon provides engineered soil stabilization solutions designed for maximum durability. Our polyurethane grouting systems protect infrastructure from the ground up, ensuring safety and performance in even the most challenging environments.

Schedule an infrastructure evaluation today: www.heliconusa.com