Because a single pole or tower failure can be catastrophic, it is essential for electric utilities, wireless telecommunication tower site owners, municipalities, commercial property owners and other individuals responsible for public safety to routinely retain the services of NACE-certified inspectors. MATCO Services, Inc., provides structural integrity inspection and risk assessment services for aging infrastructure including T&D towers, power poles, cell towers, monopoles and high-mast lighting towers, in addition to a wide range of similarly critical structures. 

Towers, Poles, Lattice & Anchor Rod Inspections

  • Transmission Tower Inspection
  • Pole/Lattice Tower Inspection
  • Communication Tower Inspection
  • Galvanized, Cor-Ten and Painted  Tower and Poles
  • Corrosion Inspection and Analysis
  • Failure Investigations & FEA Analysis
  • Cathodic Protection Inspection
  • Anchor Rod Inspection and Failure Analysis
  • Non-Destructive Inspection
  • Evaluation of Pack Out (Corrosion Build-up)
  • Paint and Coating Inspection
  • Technical Audit of Galvanized Pole & Lattice Plants
  • Remaining Life Estimations
  • Pole/Lattice Integrity Assessment
  • Quality Control Inspection
  • Computerized On-Site Inspections
  • Crack Growth Monitoring
  • Visual On-Site Inspections
  • Hurricane Damage Evaluation
  • On-site and Laboratory Investigation

MATCO Services has years of experience in all aspects of on-site and laboratory inspection and assessment of utility and traffic poles plus lattices and transmission towers. Our team includes Ph.D.s, registered professional engineers, and certified inspectors from a variety of technical disciplines, including mechanical engineering, paint inspection, chemistry, metallurgy and materials science. We also have a comprehensive array of laboratory and field testing equipment, all calibrated on a routine basis in accordance with both national and international standards. This team is ready to be put to use at a moment's notice for inspection and investigation of:

            1-Galvanized and Cor-ten Utility Poles and Transmission Lattice Towers

            2-Galvanized and Cor-ten Traffic and High Mast Lighting Poles

            3-Aluminium Traffic and Light Poles

Corrosion on transmission-line towers and poles is directly related to the atmospheric and soil conditions present for the unique location of a given pole structure, as well as to the materials of manufacturing and the quality of these materials.

             1-Internal corrosion due to the presence or entrapment of corrosive water (electrolyte)

             2-External corrosion due to corrosive atmospheric and environmental conditions

             3-Fatigue of Traffic and Light Poles due to wind loading and inadequate design

             4-Manufacturing defects and improper paint coating selection and application

             5-Little or no maintenance in corrosive environment

             6-Accumulation of debris and soil under base plate

Reference Materials

Recent articles in Materials Performance, the official trade publication of NACE International, were co-authored by Dr. Zee (M. Zamanzadeh, PhD, NACE and ASM Fellow), Director of MATCO Services' Corrosion and Materials Engineering, and Lana Gilpin-Jackson, Specialist Engineer in Lines Strategy and Standards for BC Hydro. Packed with useful information, the article educates and informs the reader on many important factors related to the life of galvanized steel structures and corrosion risk assessment. The content of the two-part article is pertinent to anyone responsible for electric reliability and grid asset management at electric utilities.
• Part 1 - Corrosion Risk Assessment of Electric Power Transmission and Distribution Structures
• Part 2 - Corrosion Risk Assessment of Electric Power Transmission and Distribution Structures

Further corrosion inspection information is available. Download free MATCO white papers to learn more about these relevant topics:
• Laboratory and Field Corrosion Investigation of Galvanized Utility Poles
• Electrochemical Testing on Above and Below Grade Structures

Additional technical papers and resources are available in the MATCO Knowledge Center.


The corrosion inspection experts at MATCO Services provide customers across North America with a thorough, Knowledge-Based Inspection (KBI).

MATCO's proven KBI methodology provides an accurate assessment of the current-state condition of aging infrastructure and detects hidden corrosion on the embedded and internal portions of assets such as utility poles, transmission towers, lattice towers, monopoles, light poles and anchor rods without the need for extensive and costly excavation.

Protect the people, property and assets in your care - contact the corrosion inspection experts at MATCO today.


Many inspection companies rely on a unreliable “look, dig, see” approach using a hand shovel to determine the likelihood of corrosion on embedded assets. Unfortunately, this approach does not take into consideration internal corrosion or the deeply embedded areas that cannot be visually observed.

MATCO’s structural inspection process includes time-proven methods from the pipeline industry which include measuring electrochemical potential values and soil resistivity to predict corrosion profiles at lower depths. Our corrosion evaluation staff skillfully identifies structures at risk of corrosion, estimates corrosion rates, makes corrosion life-expectancy determinations and establishes an accurate baseline that can be referenced when future inspections are conducted. 

The MATCO corrosion risk assessment team includes PhDs, registered professional engineers and NACE-certified inspectors from a variety of technical disciplines including mechanical engineering, paint inspection, chemistry, metallurgy and materials science. We also have a comprehensive array of laboratory and field testing equipment, all calibrated on a routine basis in accordance with both national and international standards.

MATCO customers benefit by receiving the latest skill-sets and technologies in on-site inspection, non-destructive testing (NDT), non-destructive examination (NDE), laboratory testing and engineering analysis which helps them identify potential problems and reduce the likelihood of catastrophic failures.

Enlarge Photo Utility Substation Inspection

Utility Substation Inspection

Enlarge Photo Telecommunication Tower

Telecommunication Tower

Enlarge Photo Utility Repair

Utility Repair

Enlarge Photo Corrosion


Enlarge Photo Utility repair over water

Utility repair over water

Enlarge Photo Sportslighting Failure

Sportslighting Failure

Enlarge Photo Renewable Wind Energy Inspection

Renewable Wind Energy Inspection

Enlarge Photo Lattice Tower

Lattice Tower

Enlarge Photo Helicopter Inspection

Helicopter Inspection

Enlarge Photo Coatings Lighting Pole Failure

Coatings Lighting Pole Failure

Enlarge Photo Aerospace Landing Gear Failure

Aerospace Landing Gear Failure

Enlarge Photo Utility Leg Inspection

Utility Leg Inspection

Enlarge Photo NDT Mag Particle

NDT Mag Particle

Enlarge Photo Sign Failure

Sign Failure

Enlarge Photo Light Pole Internal Corrosion

Light Pole Internal Corrosion

Enlarge Photo Water Pump Housing Failure Analysis

Water Pump Housing Failure Analysis

Enlarge Photo Aerospace Inspection

Aerospace Inspection

Enlarge Photo Cathodic Protection Wireless Monitoring

Cathodic Protection Wireless Monitoring


-  Corrosion Risk Assessments (CRA) on above and below grade assets
-  Corrosion control and mitigation planning, implementation and monitoring
-  Corrosion life expectancy calculations
-  Corrosion rate determinations
-  Failure analysis and materials testing
-  Installation Audits


-  Utility Poles / Utility Tower
-  Electric Power Poles
-  Transmission and Distribution Towers
-  Lattice Towers
-  Monopoles
-  Light Poles
-  Sports Lighting
-  High Mast Lighting
-  Traffic and Transportation Poles


-  Steel Poles
-  Galvanized Steel Poles
-  Weathering Steel Poles
-  Aged Coating Steel Poles
-  Caisson Steel
-  Concrete Poles
-  Concrete Foundations
-  Aluminum Poles
-  Wood Poles
-  Guy Wires 
-  Anchor Rods

Thank you for your excellent work to ensure a successful visit to Copper Cliff. It is refreshing to have input from a knowledgeable, independent source such as you.


Dr Zee and everyone have been wonderful to work with.


I'm extremely pleased that MATCO was able to provide help with my project. Two other labs agreed to do some analysis, but MATCO came through and provided me with exactly the results I needed.

- University of Pittsburgh, Anthropology Department