Under Construction
| Name | Location | Length | Expected completion | Line |
|---|---|---|---|---|
| Gotthard Base Tunnel | Alps, Switzerland | 57 km (35 mi) | 2018 | Gotthardbahn Luzern/Zürich-Milan |
| Brenner Base Tunnel | Stubai Alps, Austria – Italy | 55 km (34.2 mi) | 2025 | Brenner railway |
| Mont d'Ambin base tunnel | Cottian Alps, France – Italy | 52 km (32.3 mi) | 2020–2023 | Lyon Turin Ferroviaire |
| Koralm Tunnel | Koralpe, Austria | 32.9 km (20.4 mi) | 2020 | Koralm Railway |
| New Guanjiao Tunnel | Qinghai, China | 32.645 km (20.3 mi), 2 tubes | 2013? | Qinghai–Tibet Railway |
| West Qinling Tunnel | Gansu, China | 28.24 km (17.5 mi), 2 tubes | 2013 | Lanzhou-Chongqing Railway |
| Semmering Base Tunnel | Austria | 27.3 km (17.0 mi) | 2024 | Southern Railway |
| Musil Tunnel | Ulsan, South Korea | 25.1 km (15.6 mi) | 2018 | Jungang Line |
| Pajares Base Tunnel | Spain | 24.6 km (15.3 mi) | 2014 | AVE León-Asturias |
| South Lüliangshan Tunnel | Shanxi, China | 23.4647 km (14.6 mi) & 23.441 km (14.6 mi), 2 tubes | 2014 | Shanxi Central-South Railway |
| Iiyama Tunnel | Iiyama, Japan | 22.2 km (13.8 mi) | 2013 | Hokuriku Shinkansen |
| Qingyunshan Tunnel | Fujian, China | 22.175 km (13.8 mi), 2 tubes | 2012? | Xiangtang-Putian Railway |
| Muzhailing Tunnel | Gansu, China | 19.08 km (11.9 mi), 2 tubes | 2013 | Lanzhou-Chongqing Railway |
| Xuefengshan Tunnel | Fujian, China | 17.892 km (11.1 mi), 2 tubes | 2012 | Xiangtang-Putian Railway |
| Xiuling Tunnel | Yunnan, China | 17.623 km (11.0 mi), 2 tubes | 2013 | Dali-Ruili Railway |
| Gaoganshan Tunnel | Fujian, China | 17.612 km (10.9 mi), 2 tubes | 2012 | Xiangtang-Putian Railway |
| Yongshouliang Tunnel | Shaanxi, China | 17.16 km (10.7 mi) | 2012 | Xi'an-Pingliang Railway |
| Liupanshan Tunnel | Gansu, China | 16.719 km (10.4 mi) | 2012 | Tianshui-Pingliang Railway |
| Hadapu Tunnel | Gansu, China | 16.6 km (10.3 mi), 2 tubes | 2013 | Lanzhou-Chongqing Railway |
| Solan Tunnel | Taebaek, South Korea | 16.2 km (10.1 mi) | 2012 | Yeongdong Line |
| Erqingshan Tunnel | Shanxi, China | 15.851 km (9.8 mi), 2 tubes | 2013 | (Taiyuan-Xingxian Railway |
| Heishan Tunnel | Gansu, China | 15.764 km (9.8 mi), 2 tubes | 2013 | Lanzhou-Chongqing Railway |
| Guanshan Tunnel | Gansu, China | 15.55 km (9.7 mi) | 2012 | Tianshui-Pingliang Railway |
| Ceneri Base Tunnel | Lugano, Switzerland | 15.4 km (9.6 mi) | 2019 | new Gotthard Railway |
| Dapoling Tunnel | Yunnan, China | 14.728 km (9.2 mi) | 2013 | Dali-Ruili Railway |
| Bibanpo Tunnel | Yunnan, China | 14.7 km (9.1 mi) | 2015 | Shanghai-Kunming High Speed Railway |
| Yanshan Tunnel | Guizhou, China | 14.695 km (9.1 mi) | 2014 | Guiyang-Guangzhou High Speed Railway |
| Wuyishan Tunnel | Fujian, China | 14.659 km (9.1 mi) | 2012 | Xiangtang-Putian Railway |
| Dazhushan Tunnel | Yunnan, China | 14.625 km (9.1 mi) | 2013 | Dali-Ruili Railway |
| Sandu Tunnel | Guizhou, China | 14.598 km (9.1 mi) | 2014 | Guiyang-Guangzhou High Speed Railway |
| Tianchiping Tunnel | Gansu, China | 14.528 km (9.0 mi) | 2012 | Lanzhou-Chongqing Railway |
| Jinguashan Tunnel | Fujian, China | 14.097 km (8.8 mi) | 2012 | Xiangtang-Putian Railway |
| Tianpingshan Tunnel | Guangxi, China | 14.012 km (8.7 mi) | 2014 | Guiyang-Guangzhou High Speed Railway |
| Tongmashan Tunnel | Guizhou, China | 13.929 km (8.7 mi) | 2014 | Guiyang-Guangzhou High Speed Railway |
| Baofengshan Tunnel | Guangxi, China | 13.708 km (8.5 mi) | 2014 | Guiyang-Guangzhou High Speed Railway |
| Humaling Tunnel | Gansu, China | 13.611 km (8.5 mi) | 2013 | Lanzhou-Chongqing Railway |
| Marmaray | Istanbul, Turkey | 13.6 km (8.5 mi) | 2013 | |
| Wanshoushan Tunnel | Chongqing, China | 13.468 km (8.4 mi) | 2013 | Chongqing-Lichuan Railway |
| Shanyang Tunnel | Yunnan, China | 13.465 km (8.4 mi) | 2013 | Dali-Ruili Railway |
| Changhongling Tunnel | Chongqing, China | 13.294 km (8.3 mi) | 2013 | Chongqing-Lichuan Railway |
Read more about this topic: List Of Long Tunnels By Type, Rail (excluding Rapid Transit)
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