Demirciköy Tunnel () is a highway tunnel constructed in Sinop Province, northern Turkey.
Demirciköy Tunnel is part of the Sinop-Samsun Highway within the Black Sea Coastal Highway, of which construction was carried out by the Turkish Dağcan Construction and Trade Company Inc. The -long twin-tube tunnel carrying two lanes of traffic in each direction is flanked by -long Çiftlik Tunnel in the north and -long Gerze Tunnel in the south on the same highway.
The tunnel was opened to traffic on 26 March 2014.
References
External links Map of road tunnels in Turkey at General Directorate of Highways (Turkey) (KGM)