List of long tunnels by type


This page presents the same tunnels as in list of tunnels by length in separate lists according to the different tunnel types.

Rail

Under construction

Subway

Only continuous tunnel sections should be included, at least 35 km long, excluding branches from the longest tunnel.
NameSystemStationsLength in km Year Completed
Line 3Guangzhou MetroAirport South - Panyu Square60.4
2005–2010
Line 10Beijing SubwayXiju - Shoujingmao57.1 2008–2012
Seoul Subway Line 5Seoul Metropolitan Rapid Transit CorporationBanghwa - Macheon47.6
1995–1996
Downtown LineMass Rapid Transit Bukit Panjang to Expo44.2
2017
Serpukhovsko-Timiryazevskaya LineMoscow MetroAltufyevo - Bulvar Dmitriya Donskogo41.5 1983–2002
Metro Madrid L-12: Madrid Metro, Spaincircle route40.96 2003
Toei Oedo LineTMBT Subway, JapanHikarigaoka to Shiodome to Tocho-mae40.7 1991–2000
Lyublinsko-Dmitrovskaya LineMoscow MetroSeligerskaya to Zyablikovo38.3 1995–2018
Kaluzhsko-Rizhskaya LineMoscow MetroMedvedkovo to Novoyasenevskaya37.8 1958–1990
Circle LineMass Rapid Transit Dhoby Ghaut to HarbourFront35.7
2009–2011
Busan Subway Line 2Busan Transportation CorporationJangsan - Dongwon1991–1999
Seoul Subway Line 6Seoul Metropolitan Rapid Transit CorporationEungam Loop - Bonghwasan1995–2001

Under construction

Only continuous tunnel sections should be included, at least 30 km long.
NameSystemStationsLength in km Expected completion
Ligne 15Paris Métro2022–2030
Bolshaya Koltsevaya lineMoscow Metro2018 partially;
other sections up to 2023
Cross Island LineMass Rapid Transit
2029-2031
Line 18Guangzhou MetroGuangzhou East railway station to 2020
Thomson–East Coast LineMass Rapid Transit 2019-2024
L9 / L10Barcelona Metro 2016 partially;
central section unknown

See also List of metro systems#Metro systems under construction.

Road

Under construction

Water tunnels

Under construction

Note: There are buried oil and gas pipelines, up to several thousand kilometers long. See also: