Geotechnical Survey for the Prostřední Vrch Motorway Tunnel

In mid-March, a detailed geotechnical survey began for the Prostřední Vrch tunnel, which will be part of the D3 central Bohemian motorway in the Václavice–Voračice section. Following a preparatory phase of around three months and the installation of a micropile umbrella, an 838-metre-long exploratory tunnel will be excavated over a period of ten months, using the New Austrian Tunnelling Method (NATM) and blasting works. The contract for the Road and Motorway Directorate (ŘSD) is being carried out by division 1.