Kozbükü Tunnel

Kozbükü Tunnel (Turkish: Kozbükü Tüneli), is a highway tunnel constructed in Ordu Province, northern Turkey.[1]

Kozbükü Tunnel
Kozbükü Tüneli

Overview
Location	Fatsa, Ordu Province
Coordinates	40°59′40″N 37°38′38″E Kozbükü Tunnel Location of Kozbükü Tunnel in Turkey
Status	Operational
Route	D.010 E70
Operation
Work begun	1997
Constructed	Nurol-Tekfen-Yüksel joint venture
Opened	April 7, 2007 (2007-04-07)
Operator	General Directorate of Highways
Traffic	automotive
Technical
Length	261 and 257 m (856 and 843 ft)
No. of lanes	2 x 2
Operating speed	80 km/h (50 mph)

Kozbükü Tunnel is part of the Samsun-Ordu Highway D.010 E70 within the Black Sea Coastal Highway, of which construction was carried out by the Turkish Nurol-Tekfen-Yüksel joint venture.[1] The 261 and 257 m (856 and 843 ft)-long twin-tube tunnel carrying two lanes of traffic in each direction is flanked by 116–150 m (381–492 ft)-long Kadıoğlu Tunnel in the west and 170–135 m (558–443 ft)-long Tekkebak Tunnel in the east on the same highway.[2]

The tunnel was opened to traffic on April 7, 2007 by Turkish Prime Minister Recep Tayyip Erdoğan.[2] Dangerous goods carriers are not permitted to use the tunnel.[3]