Work on the structure began in September 2014. In April, when columns on both side of the slab have reached half their nominal height, workers will begin assembling the roof on the ground.
Once the roof has been fully assembled and the columns have reached their full height (approximately 60 metres), the frame of the roof can be lifted and bolted to the structure.
The installation of the crane rails will follow. The delivery of the supersized cranes designed to handle the heaviest ITER components is planned for the end of the year.