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How do you cut across the ring road with a gas pipe?

The Connexion Sud construction site is a long-term project that began in the summer of 2016 and is set to continue until next autumn. Along the 12 km route of the new gas main are several obstacles, the biggest of which is without doubt the Brussels ring road...

To cut across the ring road, the technique of directional drilling was used. The operation took place a few weeks ago. It took four days, from the time the "pilot" dug the conduit until the pipeline appeared on the other side of the ring road.

This video shows the last step of the manoeuvre, during which the pipe is pulled from one end to the other.