Kızılcahamam–Çerkeş Tunnel
The 358th longest tunnel in the world
Kızılcahamam–Çerkeş Tunnel (Kızılcahamam–Çerkeş Tüneli) is a highway tunnel between Kızılcahamam in Ankara Province and Çerkeş in Çankırı Province in Central Anatolia Region of Turkey. The tunnel is 2,071 m (6, 795 ft) long. It was opened to traffic on 27 February 2021. It will allow a much safer and comfortable journey, which is more difficult in harsh winter conditions in the high-elevated and sloping terrain. Through the tunnel, the distance shortens about 2.4 km (1.5 mi) and the travel time drops off from 15 minutes to 3 minutes.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).