Jungnyeong Tunnel
The 226th longest tunnel in the world
Jungnyeong Tunnel, (also spelled Jukryeong Tunnel or Jungryeong Tunnel), is one of Korea's longest tunnels with a length of 4.6 kilometers. This tunnel carries the Jungang Expressway, an expressway running through central South Korea. It connects Yeongju City with Danyang County. It was opened by the National Highway Corporation.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).