Why Does Cathodic Protection Matter for Concrete Infrastructure?

Corrosion is one of the most persistent drivers of concrete deterioration in transportation and civil infrastructure, especially where deicing salts and marine exposure introduce chlorides over time.

As embedded steel corrodes, it damages the surrounding concrete, reducing structural integrity, safety, and the years of service a structure delivers before major construction or repair work is needed.

Cathodic protection is an electrochemical approach that controls corrosion at the reinforcement, and our broader corrosion protection solutions help owners meet mitigation, compliance, and long-term maintenance needs.

Dock restoration with cathodic protection and containment lining

Which Structures Benefit from Cathodic Protection?

Cathodic protection can be applied to many reinforced or prestressed concrete structures where corrosion control is a long-term priority. The best candidates are assets with ongoing chloride exposure, recurring spalling repairs, or service-life targets that need more than patch fixes.

Because each structure’s reinforcement layout and exposure differ, system selection starts with surveys and engineering evaluation to match the right approach to the work environment and construction context.

Our teams support cathodic protection programs across transportation infrastructure, marine works, and industrial sites, whether assets are exposed to water, soil, or aggressive process conditions. These programs often integrate our broader concrete repair services so corrosion control and existing concrete damage are addressed together.

Bridges and highway structures are common candidates for cathodic protection because deicing salts accelerate corrosion in decks and substructures. On bridge projects, we align system installation with construction planning, traffic staging, and monitoring needs so compliance, safety, and infrastructure surveys integrate smoothly over years of service.

Parking structures and building elements often face corrosion from chlorides and moisture carried in by vehicles, weather, and water infiltration. Cathodic protection can be configured for slabs, beams, and columns where traditional repair work repeats over time, supporting long-term construction and maintenance needs.

Marine and port structures operate in some of the most aggressive corrosion environments, with tidal cycling, saltwater spray, and continuous water exposure affecting reinforcement. Cathodic protection systems maintain performance across submerged and splash zones, with construction details adapted to each industry’s infrastructure and operational constraints.

Industrial facilities may require cathodic protection for concrete structures that support process equipment and containment systems. Corrosion drivers often include pipeline and underground networks in oil gas facilities , plus tank foundations where the industry demands gas-resistant integrity and long-term corrosion mitigation.

Designing and Selecting Cathodic Protection Systems

Cathodic protection system design starts with understanding corrosion mechanisms and exposure conditions so the selected approach fits the structure and the owner’s goals.

A typical project begins with corrosion diagnosis, field surveys, and engineering analysis, which drive anode selection, zoning, and monitoring methods. Testing activities verify that system design and products perform as commissioning progresses.

Cathodic protection systems fall into two categories based on how protective current is supplied. Impressed current or galvanic options chosen to match the performance needs and site conditions.

Impressed Current Cathodic Protection (ICCP)

Impressed current cathodic protection uses an external power source to drive current through installed anodes to the embedded reinforcement. Because output is adjustable, ICCP suits larger structures, severe corrosion environments, or projects where performance tuning and long-term monitoring are priorities. 

Galvanic Cathodic Protection

Galvanic cathodic protection relies on the natural potential difference between zinc alloy anodes and reinforcing steel, so the system operates without external power. It suits localized corrosion control, limited-access power scenarios, and simplified installation. Anode configuration is matched to the structure’s geometry so protective current and maintenance requirements stay predictable.

When Is Electrochemical Chloride Extraction the Right Approach?

Electrochemical chloride extraction can be appropriate when the primary goal is reducing chloride content without extensive demolition. This engineering approach uses an applied electric field to move chloride ions away from the reinforcement, supporting repassivation and mitigation of future risk. Testing verifies that solutions align with long-term corrosion control needs.

Why Choose Freyssinet for Cathodic Protection Services?

01. What Does AMPP Certification Guarantee?

AMPP and ISO-aligned certification reflects that certified professionals follow technical requirements for cathodic protection design, installation, and verification activities. Our qualified engineers and technicians bring years of experience applying established industry practices and documentation standards to long-term asset management programs for clients.

02. How Does Freyssinet Design Each CP System?

Each cathodic protection system is designed around the structure’s corrosion profile and the constraints that determine whether protection can be installed and maintained effectively. Design decisions typically include defining performance objectives, selecting anode configuration, planning zoning and monitoring points, and coordinating details that affect constructability and future access.

03. Proprietary Foreva Technology

Foreva technology supports a complete suite of cathodic protection and electrochemical products for concrete structures, allowing system selection to match exposure severity and installation conditions. Options include impressed current and galvanic approaches, as well as electrochemical treatment methods, enabling Freyssinet to configure solutions for both localized and large-scale protection needs.

04. From Corrosion Assessment to Long-Term Monitoring

Long-term performance depends on verification and ongoing monitoring, not installation alone. Our cathodic protection services include support for field assessment, commissioning, and monitoring programs that help owners track system performance over time and align corrosion management with broader maintenance planning based on site constraints, expertise, and service priorities.

How Do Cathodic Protection Services Work?

Cathodic protection services follow a structured sequence from assessment to commissioning so the installed system meets performance objectives and can be verified over time. While every project is tailored to the structure and exposure, the workflow typically includes field surveys, engineering design, installation, performance verification, and ongoing monitoring.

Condition Assessment and Corrosion Diagnosis

Assessment defines the corrosion drivers and the most effective mitigation approach for the structure. Survey work typically focuses on identifying corrosion activity, exposure severity, and the zones that require protection so the system design targets the right areas.
  • Half-cell potential surveys to map corrosion activity
  • Chloride profiling and carbonation depth testing where relevant
  • Cover depth measurements and reinforcement mapping

Cathodic Protection System Design

Design translates field data into a constructible cathodic protection system that can distribute protective current effectively. Engineering work typically includes selecting system type, defining anode configuration, planning zoning and monitoring points, and coordinating installation constraints.
  • Anode type selection and layout planning for the structure geometry
  • Reference electrode placement and monitoring strategy
  • Zoning approach for structures with variable exposure conditions

Installation and Commissioning

Installation and commissioning confirm the system is operating as intended before it enters long-term service. Crews install anodes, wiring, and power components where applicable, then complete commissioning checks to verify current distribution and performance.
  • Surface preparation and anode installation
  • Electrical connections, continuity checks, and system wiring
  • Initial energization, adjustment, and verification testing

What Does Ongoing System Monitoring Involve?

Monitoring helps maintain protection levels as conditions change over time and supports proactive maintenance planning. Programs may include remote data collection, periodic site visits, and performance verification activities that document system health and identify needed adjustments.
  • Remote monitoring and data logging where applicable
  • Periodic adjustment of current output for ICCP systems
  • Scheduled surveys and reporting aligned with owner requirements

Reporting and Compliance Documentation

Documentation supports compliance, asset management, and long-term decision-making by recording design intent, commissioning data, and ongoing performance trends. Reports help owners integrate cathodic protection into maintenance planning and demonstrate that protection criteria continue to be met.
  • Commissioning records and performance baselines
  • Ongoing monitoring summaries and maintenance actions
  • Compliance documentation aligned to applicable standards and owner requirements

Condition Assessment and Corrosion Diagnosis

Assessment defines the corrosion drivers and the most effective mitigation approach for the structure. Survey work typically focuses on identifying corrosion activity, exposure severity, and the zones that require protection so the system design targets the right areas.
  • Half-cell potential surveys to map corrosion activity
  • Chloride profiling and carbonation depth testing where relevant
  • Cover depth measurements and reinforcement mapping

Cathodic Protection System Design

Design translates field data into a constructible cathodic protection system that can distribute protective current effectively. Engineering work typically includes selecting system type, defining anode configuration, planning zoning and monitoring points, and coordinating installation constraints.
  • Anode type selection and layout planning for the structure geometry
  • Reference electrode placement and monitoring strategy
  • Zoning approach for structures with variable exposure conditions

Installation and Commissioning

Installation and commissioning confirm the system is operating as intended before it enters long-term service. Crews install anodes, wiring, and power components where applicable, then complete commissioning checks to verify current distribution and performance.
  • Surface preparation and anode installation
  • Electrical connections, continuity checks, and system wiring
  • Initial energization, adjustment, and verification testing

What Does Ongoing System Monitoring Involve?

Monitoring helps maintain protection levels as conditions change over time and supports proactive maintenance planning. Programs may include remote data collection, periodic site visits, and performance verification activities that document system health and identify needed adjustments.
  • Remote monitoring and data logging where applicable
  • Periodic adjustment of current output for ICCP systems
  • Scheduled surveys and reporting aligned with owner requirements

Reporting and Compliance Documentation

Documentation supports compliance, asset management, and long-term decision-making by recording design intent, commissioning data, and ongoing performance trends. Reports help owners integrate cathodic protection into maintenance planning and demonstrate that protection criteria continue to be met.
  • Commissioning records and performance baselines
  • Ongoing monitoring summaries and maintenance actions
  • Compliance documentation aligned to applicable standards and owner requirements

Cathodic Protection Projects Across the United States

Cathodic protection projects require solutions that match structure type, exposure, and constructability, and we support installations across the United States for transportation, marine, industrial, and commercial assets. Whether the focus is bridge substructures, parking facilities, port infrastructure, or critical industrial concrete, projects are planned to align engineering requirements with practical installation and long-term monitoring.
Repairs
Virginia, United States

Dominion Terminal Associates

A critical infrastructure renewal project focused on structural resilience, corrosion protection, and long-term performance at one of Virginia’s key coal export terminals.
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Repairs
North Carolina, United States

NCDOT Atlantic Beach & Emerald Isle Bridge Repair

Discover how Freyssinet USA led a six-year bridge repair project for NCDOT, restoring the Atlantic Beach and Emerald Isle bridges with advanced structural solutions and environmental care.
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Repairs
Florida, United States

The Channel Five Bridge

Freyssinet delivers a full structural rehabilitation of the Channel Five Bridge, reinforcing one of the Florida Keys’ most critical transportation links. Our work ensures long-term durability, safety, and resilience for this essential piece of coastal infrastructure.
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