Bridge inspection with NDT: Maximum certainty without disruption

Following the collapse of the Carola Bridge in Germany in September 2024, Rijkswaterstaat investigated the condition of bridges and viaducts in the Netherlands, particularly those with prestressed steel in their structures. The investigation by Rijkswaterstaat revealed that thirteen bridges and viaducts in the Netherlands need to be replaced earlier than planned due to the risk of hairline cracks in the structures. In some cases, this could lead to a risk of collapse. Minister Madlener of Infrastructure wrote this in a letter to the House of Representatives.

According to Rijkswaterstaat, these bridges will be given priority in the replacement schedule, but there is no immediate safety risk. However, the bridges and viaducts will be monitored for crack formation and damage. Research organization TNO, which provided a second opinion, recommends that this be done every six months.

Bridges are crucial links in our infrastructure. To ensure safety and reliability, regular and thorough inspections are essential. Whether or not there is an actual reason for concern in the case of your bridge, you cannot take any risks. You must demonstrate that you are taking all possible measures to guarantee public safety. How should you approach this? And who can help you?

Bridge Inspection with NDT by MME Group

MME Group is a multidisciplinary specialist with decades of experience in inspections and Non-Destructive Testing (NDT). In addition, MME Group has a destructive metallurgical laboratory for determining material properties. Finally, MME Group has a team of researchers certified to the highest standards (IRATA) in the use of climbing equipment for inspections in hard-to-reach places.

By engaging MME Group, you gain insight into the exact condition of the steel structure. This not only enables you to assess whether further action is necessary, but also demonstrates to the outside world that you take safety extremely seriously.


Marco Knuit

Manager Advanced NDT
info@mme-group.com
+31 (0) 6 45 64 21 26

What can we do for you?

Thanks to Non-Destructive Testing (NDT), structures such as bridges can be inspected accurately without causing damage. The possibilities of NDT are broad, versatile, and play a key role in the early detection of defects or signs of fatigue. Our expertise covers a wide range of NDT techniques, each with specific applications, for example:

  • Eddy Current Testing (ET)
    With this method, we detect cracks (whether caused by use or not) in welds and, for instance, around rivets. This is done quickly, accurately, and without removing the paint.
  • Magnetic Testing (MT)
    Ideal for detecting surface cracks in structures such as girders.
  • Conventional Ultrasonic Testing (UT)
    Suitable for inspecting welds, measuring wall thickness, and locating corrosion. A proven method for mapping the internal condition of structural parts.
  • Time of Flight Diffraction (TOFD)
    This advanced ultrasonic technique is often used on bridge decks. The road surface is usually temporarily removed to allow direct access to the deck. TOFD is highly suitable for detecting and monitoring cracks.
  • Phased Array Ultrasonic Testing (PAUT)
    An even more advanced variant of ultrasonic testing, allowing cracks in the bridge deck to also be detected from the underside. Major advantage: the road surface does not need to be removed, and traffic can often continue without interruption. Minimal disruption, maximum reliability.
  • Rope Access
    In situations where accessibility is a challenge, we deploy rope access techniques. This enables our inspectors to work safely and efficiently in hard-to-reach areas, without the need for heavy scaffolding or aerial work platforms. Rope access is often combined with NDT methods to make inspections even more efficient and cost-effective.

Why is MME Group the right partner?

  • ISO 9001, 17020, 17025, VCA and IRATA certified
  • Extensive track record in the inspection of civil structures (such as bridges, viaducts, amusement park rides, cranes, stadium roof structures, wind turbines, and offshore platforms, etc.)
  • Minimal impact on the environment and traffic
  • Inspection without damage to the structure
  • Rapidly deployable in-house team of certified inspectors
  • Tailor-made solutions, even for complex situations
  • Multiple services under one roof; such as NDT, Metallurgical Laboratory, and Rope Access – meaning one single point of contact

 

Would you like to know more about how we can support you with NDT for bridge inspections? Feel free to contact us using the form below. We will be happy to provide you with no-obligation advice on the best approach for your situation.

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Our services for bridge managers

Non-Destructive Testing
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Rope Access (IRATA)
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Destructive Metallurgical Laboratory
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