The Lanzhou–Haikou Expressway (), designated as G75 and commonly referred to as the Lanhai Expressway () is an expressway in China that connects the cities of Lanzhou, Gansu, and

Haikou Haikou (; ), also spelled as Hoikow is the capital and most populous city of the Chinese province of Hainan. Haikou city is situated on the northern coast of Hainan, by the mouth of the Nandu River. The northern part of the city is on the ...

Hainan Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...

. When fully complete, it will be in length. It is one of the most important routes between

Northwest China Northwest China () is a statistical region of China which includes the autonomous regions of Xinjiang and Ningxia and the provinces of Shaanxi, Gansu and Qinghai. It has an area of 3,107,900 km2. The region is characterized by a (semi-)arid con ...

and the

Southwest The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each sepa ...

, and considered one of the developmental axes of Development of Western China.

Route

Gansu

G75 was fully completed in Gansu with the opening of the

Wudu Wuḍūʾ ( ar, الوضوء ' ) is the Islamic procedure for cleansing parts of the body, a type of ritual purification, or ablution. The 4 Fardh (Mandatory) acts of ''Wudu'' consists of washing the face, arms, then wiping the head and the fe ...

- Weiyuan section on 1 January 2021. Starting from the south of Lanzhou, the expressway enters the New Qidaoliang tunnel (length ) through the Xinglongshan mountains, from where it follows the

Tao River Tao River () is a right tributary of China's Yellow River. It starts in Xiqing Mountains () near the Gansu–Qinghai border, flows eastward across Gannan Tibetan Autonomous Prefecture, and then northward more or less along the border between ...

parallel to G212. Past Lintao, the route diverges from the Tao river valley and passes through hilly landscape through a couple of tunnels until exiting in the

Wei River The Wei River () is a major river in west-central China's Gansu and Shaanxi provinces. It is the largest tributary of the Yellow River and very important in the early development of Chinese civilization. The source of the Wei River is close to ...

valley. From there it continues through the long Muzhailing Tunnel. In

Min County Min County or Minxian is administratively under the control of the prefecture-level city of Dingxi, in the south of Gansu province, China. In ancient times, it was known as Lintao County due to its location along the Tao River. It was founded a ...

, the expressway parallels G212 again until Longnan, exiting Gansu through a mountainous valley by numerous tunnels and viaducts.

Sichuan

The expressway is under construction from the Gansu border to Nanchong, and complete from Nanchong to the Chongqing border.

Chongqing

The expressway is complete in Chongqing.

Guizhou

G75 Qiannan - Mapillary (VUJyvpoUcC7tb4uOtm8g9A)

The expressway is complete in

Guizhou Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to the ...

. The portion of it connecting Guiyang and

Zunyi Zunyi () is a prefecture-level city in northern Guizhou province, People's Republic of China, situated between the provincial capital Guiyang to the south and Chongqing to the north, also bordering Sichuan to the northwest. Along with Guiyang an ...

is referred to as the Kaima Expressway.

Guangxi

The expressway is under construction from the

border to

Du'an Yao Autonomous County Du'an Yao Autonomous County ( zhuang: ,) is an autonomous county under the administration of Hechi City, in the northwest of Guangxi, China. It has an area of and a population of 625,100, including 596,100 that are of minority ethnic groups. ...

, and complete from Du'an to the

Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...

border.

Guangdong

The expressway is complete from the Guangxi border to

Zhanjiang Zhanjiang (), historically spelled Tsamkong, is a prefecture-level city at the southwestern end of Guangdong province, People's Republic of China, facing Haikou city to the south. As of the 2020 census, its population was 6,981,236 (6,994,832 ...

. At

, the expressway is under construction as the fixed bridge link from

is still under construction.

Hainan

When completed, the southern terminus of the expressway will be in

is an island and currently not connected to the rest of

Mainland China "Mainland China" is a geopolitical term defined as the territory governed by the People's Republic of China (including islands like Hainan or Chongming), excluding dependent territories of the PRC, and other territories within Greater China. ...

by a fixed road link. A bridge is being built over the

Qiongzhou Strait The Qiongzhou Strait, also called the is the Chinese strait that separates Guangdong's Leizhou Peninsula from the island province of Hainan. It connects the Gulf of Tonkin on its west to the South China Sea on its east. The strait is on averag ...

, separating

from

and will carry the Lanzhou–Haikou Expressway to

Major accidents

The northern terminus of G75 in Lanzhou has been the site of hundreds of accidents, totaling at least 42 deaths since 2012. Over a distance of , the road descends . Trucks having brake failure or being overloaded, and drunk drivers cause most of the accidents. The toll station is located several kilometers from the actual terminus of the expressway to reduce the severity of accidents. With the opening of the Lanzhou South Ring Expressway, heavy trucks are not allowed on the downhill section any more. On 7 November 2015, a truck caught fire in the Qinggangshao tunnel between Chongqing and

. The driver managed to drive the burning truck out of the tunnel to a safe parking spot, preventing any injuries. On 9 November 2015, two trucks collided with a bus in Wusheng, resulting in 6 deaths and 26 injured people.

Detailed Itinerary

References

{{DEFAULTSORT:G75 Lanzhou-Haikou Expressway Chinese national-level expressways Expressways in Gansu Expressways in Sichuan Expressways in Chongqing Expressways in Guizhou Expressways in Guangxi Expressways in Guangdong Expressways in Hainan