According to the information obtained by an AA correspondent from the General Directorate of Highways, 44 tunnels with a total length of 57 kilometers were completed last year. 44 tunnels, including the Istanbul Kasımpaşa Tunnel (2×1316 meters), Izmir Konak Tunnel (2×1674 meters), Kahramanmaraş Püren Tunnel (2×1981 meters), Mersin Boğsak Tunnel (2×1570 meters) and Bitlis 8 August Tunnel (2×1981 meters), were put into service last year.
While 83 tunnels, with a total length of 50 kilometers had been put into service in Turkey until 2003, 188 tunnels, with a total length of 214 kilometers were built between 2003 – 2015. The length of the tunnels built during the said period is a 427 percent increase when compared to the length of the tunnels built until 2003. There are a total of 170 single tube tunnels, with a total length of 74 kilometers, and 101 double tube tunnels, with a total length of 190 kilometers on the roads of Turkey.
While important tunnel projects have been brought to life in areas which are of a low standard in respect of their land structure and possess a problematic topography, the length of highway tunnels has risen from 50 kilometers to 264 kilometers in the last 13 years. The building work for 94 tunnels, with a total length of 272 kilometers, is continuing throughout Turkey, while some important tunnels – in particular from among those on the North – South axis, are expected to be put into service in 2016 – 2017.
The principal tunnels among these are the Ovit Tunnel, which is being built between Rize – Erzurum, the Cankurtaran Tunnel between Hopa – Borçka, the Salmankas Tunnel between Trabzon – Araklı – Bayburt, the Erkenek Tunnel between Malatya – Adıyaman, the Karahan Tunnel between Malatya – Darende – Kayseri, the Cudi Tunnels between Cizre – Şırnak, the Ilgaz Tunnel between Kastamonu – Çankırı, the Geminbeli Tunnel between Suşehri – Sivas, the Dallıkavak and Kırık Tunnels between Rize – Erzurum, the Güzeldere Tunnel between Van – Hakkari, the Akyazı Tunnel in Trabzon, the Demirkapı Tunnel between Antalya – İbradı and the Kahramanmaraş – Göksun – Kayseri Tunnels.
On the other hand, 470 tunnels with a total length of 700 kilometers – that is approximately the distance between Istanbul – Antalya, are planned to be built within the scope of the targets for 2023.