Chongqing–Lanzhou railway

Chongqing–Lanzhou railway is a major trunk railway in China connecting Chongqing and Lanzhou. Construction started in 2010, last segment of the railway was opened for service in September 2017.[1][2] The line allows trains to travel between Chongqing and Lanzhou, Gansu via Nanchong and Guangyuan, Sichuan.

Chongqing–Lanzhou railway
Lanzhou-Chongqing Railway above G22-G30 near Jiejiazui (20171004154457).jpg
Viaduct of Lanzhou–Chongqing railway above G30 in Yuzhong County, Lanzhou
Native name兰渝铁路

Chongqing - Guangyuan opened Dec 2015
Guangyuan - Minxian opened Dec 2016

Minxian - Lanzhou opened Sep 2017
Lanzhou West
TypeHigh-speed rail, Heavy rail
Operator(s)China Railway
Line length832 km (517 mi)
Track gauge1,435 mm (4 ft 8 12 in)
Operating speed200km/h(Chongqing-Guangyuan) 160km/h(Guangyuan-Lanzhou)
Route map

Longhai railway to Lianyungang
Baotou–Lanzhou railway to Baotu
Lanzhou East
Longhai railway to Lanzhou and Lanzhou West
Longnan West
Gansu/Sichuan border
Xi'an–Chengdu high-speed railway to Chengdu
Nanchong North
Chengdu-Dazhou railway to Chengdu East
Nanchong East
Chengdu-Dazhou railway to Dazhou
Guang'an South
Xiangyu railway to Xiangyang
Chongqing-Suining railway to Chengdu East
Sichuan/Chongqing border
Chongqing–Lichuan railway
Chongqing North
Chongqing–Huaihua railway
Chongqing West
Chengdu-Chongqing ICR
Chongqing–Guizhou high-speed railway to Guiyang North


With a total length of 820 km, of which 435 km is located within Gansu Province, in addition to the construction of a branch to Nanchong and Guang'an that is 95 km long. It was built as a new double line electrified railway, with freight train capable of up to 160 km/h, passenger trains traveling at 200 km/h. The capacity of the line is expected at 50 train pairs per day and 50,000,000 tonnes of freight per year.

Lanzhou–Chongqing railway project was estimated to need a total investment of 77.4 billion yuan, of which the Gansu Provincial Government invested about 43 billion yuan, with the rest of the funding was coming from a Ministry of Railways, Sichuan and Chongqing joint construction effort. The construction period was expected to take 6 years. By the completion of the railway rail transport from Lanzhou and Chongqing is shortened from 1466 kilometers to 820 kilometers, conventional train running time is reduced to 7 hours from 17.5 hours. Fast trains will complete the route in 5.5 hours.

Recent high speed rail reforms has also meant direct Chengdu-Lanzhou and Chongqing-Xi'an services will use a combination of Xi'an–Chengdu high-speed railway and Chongqing–Lanzhou high-speed railway from where they meet at Guangyuan, Sichuan. This will reduce the need for a separate direct Chongqing-Xi'an or Chengdu-Lanzhou line.[3]

Because of hilly terrain between Guangyuan and Lanzhou on 832 km of railway there are 285 bridges totaling 104 km (13% of the route) and 178 tunnels totaling 506 km (63% of the route). Twelve of the tunnels will exceed 10 km in length, while the longest tunnel, West Qinling Tunnel, measures 29 km.[4]


Lanzhou–Chongqing railway runs west out of Lanzhou City through Yuzhong County, Weiyuan County, Min County, Tanchang County, Longnan City in Gansu. Crossing into Sichuan Province territory, it then travels by Guangyuan, Cangxi County, Langzhong, Nanbu County, Nanchong. Finally it enters Chongqing City via Hechuan District and Beibei District before terminating at Chongqing North railway station.


  • August 1, 2008, West Qinling Tunnel as the first part of the project is opened for tender and bidding started, marking the start of Lanzhou–Chongqing railway construction.[5]
  • July 19, 2014, West Qinling Tunnel construction is completed.[6]
  • August 8, 2014, Nanchong East station branch opens with EMU services to Chengdu East [7]
  • January 1, 2015, 70.7 km of the southern end of the project is opened. This allows for Chongqing to Hechuan EMU services in just 20 minutes.[8]
  • December 26, 2015, The southern section of the line, from Chongqing to Guangyuan, Sichuan, opened in December 2015.[1] Initially with only conventional rail services.[9]
  • May 15, 2016, High speed EMU services commence with train D5131 running from Chongqing to Guangyuan station in a total of 3 hours 06 minutes. It ran at a maximum speed of up to 200 km / h.[10]
  • December 26, 2016, The section between Guangyuan, Sichuan and Minxian, Gansu was completed in December 2016. However, due to Minxian's small size and remote location, services will only commence to Longnan.[11][12]
  • September 29, 2017, The section between Minxian, Gansu and Lanzhou, Gansu was completed in September 2017.


In October 2011, 21 railway workers were killed when the vehicle they were traveling in overturned in Lintao County, Gansu. Seven other workers were injured.[13]


  1. ^ a b "兰渝铁路预计今年底全线建成通车" [The entire Lanzhou-Chongqing railway will be completed and opened for service by the end of this year]. Sina Finance. January 21, 2016.
  2. ^ UK, DVV Media. "Lanzhou – Chongqing mixed traffic artery completed". Railway Gazette.
  3. ^ "市发改委: 渝西高铁搁浅. 重庆到西安将借道西成高铁". Chongqing Ribao. September 28, 2012. Archived from the original on 2013-05-14.
  4. ^ "Lanzhou-Chongqing Rail Project, China". Railway Technology.
  5. ^ 2015年底兰渝铁路全线开通运营
  6. ^ 兰渝铁路西秦岭隧道全线贯通
  7. ^ "兰渝铁路高南线正式开通运营". 中国新闻网. 2014-08-08. Retrieved 2014-08-09.
  8. ^ 樊曦 李峰. "兰渝铁路重庆北至渭沱段开通运营". 新华网.
  9. ^ 刘艳 徐焱. "兰渝铁路重庆至广元段建成通车 坐火车2小时到阆中". 华龙网.
  10. ^ 徐焱. "兰渝铁路广元至重庆段首开动车组 最高时速198公里". 华龙网.
  11. ^
  12. ^ 戴璐岭 (2016-12-26). "兰渝铁路岷县至广元段今日正式开通运营". 四川新闻网. Retrieved 2016-12-26.
  13. ^ AFP (October 29, 2011). "Accident in China kills 21 railway workers". Asia One.

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