List of longest railway tunnels - Wikipedia: "Gotthard Base Tunnel Switzerland (Alps) 57.104 km (35.5 mi) & 57.017 km (35.4 mi), 2 tubes 2016 Gotthardbahn
Luzern/Zürich-Milan
Seikan Tunnel Japan (Tsugaru Strait) 53.85 km (33.5 mi) 1988 Kaikyo Line (Hokkaidō Shinkansen)
Yulhyeon Tunnel South Korea (Gyeonggi) 52.3 km (32.5 mi)[1] 2016[2] Suseo High Speed Railway
Channel Tunnel France/United Kingdom (English Channel) 50.45 km (31.3 mi) 1994 Channel Tunnel
Songshan Lake Tunnel[3] China (Dongguan) 38.813 km (24.1 mi) 2016 Dongguan–Huizhou Intercity Railway
Lötschberg Base Tunnel Switzerland (Bernese Alps) 34.576 km (21.5 mi) & 27.2 km (16.9 mi), 2 tubes 2007 Lötschbergbahn
Brig - Thun (- Bern - Basel)"
Seikan Tunnel Japan (Tsugaru Strait) 53.85 km (33.5 mi) 1988 Kaikyo Line (Hokkaidō Shinkansen)
Yulhyeon Tunnel South Korea (Gyeonggi) 52.3 km (32.5 mi)[1] 2016[2] Suseo High Speed Railway
Channel Tunnel France/United Kingdom (English Channel) 50.45 km (31.3 mi) 1994 Channel Tunnel
Songshan Lake Tunnel[3] China (Dongguan) 38.813 km (24.1 mi) 2016 Dongguan–Huizhou Intercity Railway
Lötschberg Base Tunnel Switzerland (Bernese Alps) 34.576 km (21.5 mi) & 27.2 km (16.9 mi), 2 tubes 2007 Lötschbergbahn
Brig - Thun (- Bern - Basel)"
