The Swiss Tunnel Colloquium 2021 «Tunnelling in densely populated areas» will take place in the Concert Hall of the KKL Luzern on September 13, 2021. The Concert Hall, which offers space for over 1,000 people, is certainly known to most of you as the venue for the Swiss Tunnel Congress (STC). Due to its impressive size, it offers the perfect conditions for optimally implementing the hygiene measures required in times of COVID-19. Due to the increase in capacity, it is still possible to register for the Swiss Tunnel Colloquium 2021. The registration deadline will therefore be extended until August 13, 2021. Click here for registration. Visit https://www.swisstunnel.ch/en/. 32/21.