The 50 % of Orhangazi Samanlı Tunnel, which is still under construction on the Yalova-Bursa border within the scope of Gebze-Orhangazi-Izmir Highway Project has been completed. Ismail Kartal, the Bursa Regional Director of the Public-Private Sector Partnership under the General Directorate of Highways, stated that 3 tunnels are to be constructed within the scope of the Gebze-Orhangazi-Izmir Highway Project, which is the longest and the second longest ongoing infrastructure investment in Europe and the world, respectively. Stating that the Orhangazi Samanlı Tunnel between Bursa and Yalova, the Selçukgazi Tunnel in Bursa and the Belkahve Tunnel on Izmir border are still under construction, Mr. Kartal explains that the Orhangazi Samanlı Tunnel, longer than the Bolu Tunnel will be brought into service in 2015.