Reconstruction of the Telgart tunnel1997

Length of the tunnel 1.2 km. The aim of the reconstruction was to remove the insufficient protection of the paneling, which was not protected from the effects of groundwater, water leakage into the tunnel. Also the statically disrupted lining had to be renovated, the stone lining had to be grouted in the damaged places and the weathered concrete had to be filled in locally. Sealing injections for the paneling made of polyurethane were applied on the construction site.