Mostostal Warszawa SA is one of the largest construction companies in Poland.

The project contractors—the consortium of Mostostal Warszawa and ACCIONA—have completed a key stage in the construction of the tunnel on the S19 Rzeszów Południe–Babica section. The last, 11,020th concrete segment forming the tunnel’s internal lining has been installed.

The section of the expressway between the Załuski and Modlin junctions has been opened to drivers. Obtaining an occupancy permit has enabled the implementation of permanent traffic management and full use of the route. All that remains to be completed is the opening of the Service Areas.

This day has already gone down in the history of Polish road infrastructure. On December 10, 2025, the TBM “Karpatka” broke through to the North Portal, completing the excavation of the first tunnel tube on the S19 Rzeszów Południe–Babica route. This is an event of exceptional significance – both for the tunneling industry in Poland and for the strategic Via Carpatia corridor, which will connect the north and south of Central and Eastern Europe. The project is being carried out by a consortium of Mostostal Warszawa S.A. and ACCIONA.

The construction of the Opatów bypass along the S74 and DK9 roads has been completed. The project, executed under the “Design and Build” system, was carried out by a consortium of Mostostal Warszawa S.A. and our strategic partner, ACCIONA.