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Marine Tunnel Boring Machine: the stages of its preparation for departure

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By Bat info source: Major Projects Society via YouTube

On October 13, 2025, the second tunnel boring machine for Line 15 East began its ascent from the Agnès shaft construction site in Aubervilliers. In total, it will excavate 5,5 km of tunnel to the Normandie-Niemen structure in Bobigny. Its underground journey is scheduled to end in the fall of 2027.