Dulcinea, one of the world's largest tunneling machines

With a weight of 4,366 tons, a power of 12,000 kilowatts, a length of 107 meters and a diameter of 15.2 meters, Dulcinea is the world's largest tunnel, surpassing even used in the Tunnel Groene-Hart, between Amsterdam and Rotterdam, and carries within paths images of the Virgin of Pilar and La Paloma.

follow us on  GH Youtube