This morning, about 1,400 meters below the Brenner Pass and in border between Italy and Austria, was the last diaphragm of the two pipes was knocked down at the same time of the Brenner Base Tunnel, a system that with 64 kilometers of tunnels will be the railway connection longest underground in the world. With the reduction of the diaphragms of the two line tunnels connected the two construction sites that for years have worked independently, with two different excavation methods. The reduction of the diaphragm marks in fact, the reunion between the Italian Mules 2-3 lot and the Austrian Pfons-Brenner.