WITHIN THE SCOPE OF HIGHWAY AND RAILWAY TUNNEL CONSTRUCTION WORKS;

The total length of highway and railway tunnels completed or in progress in Turkey and abroad by Cengiz İnşaat reaches 446 km.

Cengiz Holding constructs highways and railways as well as highway and railway tunnels. The Company completed the construction of Ilgaz and Çamlıca tunnels and the construction of Ovit and Zigana tunnels are in progress. Zigana Tunnel, longest in Turkey with a total length of 14,5 km will also be the longest highway tunnel in Europe. Ovit Tunnel is the fourth longest in Europe with a total length of 12,6 km. These projects are managed by Turkish engineers employed by Cengiz İnşaat. Tunnels were built in Sarajevo in line with EU standards by Cengiz İnşaat.

Project Processes

  • Zigana Tunnel
    Trabzon-Gümüşhane, Turkey
    Completion date, April 2020
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Zigana Tunnel, longest in Turkey with a total length of 14,5 km will also be the longest highway tunnel in Europe.

  • Ovit Tunnel
    Rize, Turkey
    Completion date, December 2018
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Ovit Tunnel is the fourth longest in Europe with a total length of 12,6 km.

  • Çamlıca Tunnel,
    İstanbul, Turkey
    Completion date, May 2018
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  • Ilgaz Tunnel,
    Kastamonu-Çankırı, Turkey
    Completion date, December 2016
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