Lifting of steel “Tree structures” in Saudi Arabia

Various Heavy Lifts were planned for the installation of sphere structures for a “forest of steel tree structures”. The client requested to have all lifting plans being reviewed by an independent Subject Matter Expert. Moreover they requested us to be on the job site to supervise the major lifts, the goal of our presence, zero accidents and zero injuries during the installation works.

A high way crossing in Saudi Arabia was ready to receive a large number of special sphere structures for the KKR – KAR – West Spiral Sphere Project. This project comprises of the erection of the columns and spheres with a CC 8800-1. In view of risk mitigation and operational control the client wants a cold eye review of plans and operations manuals and expertise on the jobsite during the critical lifts.

The lifting plans and operations manuals were reviewed by the operations team in the Utrecht office to make sure all critical aspects were covered and no grey areas were left unanswered. Any comments and recommendations were reported and the final plans were updated.

We attended the kick-off meeting on site to make ourselves familiar with the situation and to discuss the day-to-day operations with the team on site. Upon start of the operations the consultant set up the supervision during the day and night shift and coordinated the operations on a daily basis. All critical lifts were supervised by the supervisor.

This combination of independent desk review and supervision on site was experienced as a catalyst for all parties involved to work in accordance with the plans and focus on safety during all the operations.

What we do

As an independent partner, we advise about, design and construct everything from concept study to project completed. Our in-house developed design software calculates everything concerning mobile cranes and bespoke heavy equipment, while our people offer the expertise and skills that secure your success.


Consultancy / Design & Construction

Our 40 years of experience provides the basis of a successful start of your project: right from the FEED phase. Preparation is vital. Therefore our concept studies, method statements and mission equipment offer you all the support you need.


Consultancy / Design & Construction

Our aim is to optimize your project team’s results. With our exclusive knowledge of lifting and transportation we eliminate and manage risks. This is how we reach our collective goal: Zero Accidents, Zero Incidents.



We have built up a great deal of experience with the design of (mobile) cranes and bespoke heavy equipment such as piling machines and excavators. Our customer base includes the most prominent producers of cranes and heavy machinery worldwide.

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