In 2023, the SIA's Underground Working Specialist Group (GLS/STS) will celebrate its 50th anniversary. The anniversary celebrations will take place as part of the Swiss Tunnel Congress 2023, which will be held from 12 to 13 June 2023 at the KKL in Lucerne. Public events with the title "Looking into the underground" will take place throughout the year and throughout the country, offering exciting experiences in large underground structures.
17 June 2023, Ticino
Second tube of the Gotthard road tunnel (Airolo), Ritom hydroelectric power station (Quinto), military fort (Ponte Brolla), hydroelectric power station (Biasca) and others.
More information at the following link.