What is the hardest road in China to build?

Yakang Expressway, Yakang Expressway is also a relatively difficult highway in the expressway, this expressway connects Ya'an and Kangding, and is an important part of the national highway network Ya'an to Xinjiang Kashgar Yecheng Expressway.

Motuo is the last county seat in China to be connected to a road. Medog is a high-incidence area, and there are observations that there are more than 400 large and small ** activities in the local area every year, starting from 1965, the construction of the Medog Highway, but because of environmental and technical problems had to be abandoned, in the 70s and 90s there were plans to build the Medog Highway, but in the end because of the harsh environment was not able to be built. It was not until October 2013 that the Medog Highway was officially opened to traffic, ending the history of China's last county without roads.

In 1972, in order to allow the villagers to walk down the mountain, 13 villagers under the leadership of Shen Mingxin, under the condition of no electricity and no machinery, lasted five years, and chiseled out 26,000 cubic meters of rock in the cliff with a hammer, and opened a stone cave with a height of 5 meters, a width of 4 meters and a total length of 1,300 meters from the steep rock wall - Guoliang Cave.

Wenma Expressway, the ratio of bridges and tunnels along Wenma Expressway is as high, which is the highest in the country! The section where the Wenma Expressway is built is located, with terrain height differences, narrow river valleys, frozen snow, and many geological disasters, it can be said that it is a relatively difficult road to repair.

The geological conditions along the China-Pakistan Friendship Highway are extremely complex, with geological disasters such as avalanches, landslides, rockfalls, landslides, snow, ice, and other geological disasters often occur, and the roads and bridge facilities along the way are often damaged, and many road sections are difficult to open to traffic. After the completion of the highway, due to the extremely complex geological conditions and the need for perennial maintenance, the Pakistan army has set up a special army engineer to be responsible for the maintenance and rescue of the highway.

The Medog Highway is simply the most difficult highway to build in China! A county-level highway of only 117 kilometers took nearly 50 years of painstaking efforts to complete!

The altitude difference of the whole line of Yakang Expressway reaches 1,900 meters. The bridge-tunnel ratio of the project is as high as 82%, which is currently one of the expressways with the highest bridge-tunnel ratio and the most difficult construction in the province and even the country. Yakang Expressway is a section of the Sichuan-Tibet Expressway, which extends from the Sichuan Basin to the Qinghai-Tibet Plateau, and will pass through the Hengduan Mountains of deep mountain valleys"Keep your feet on the ground"。

Chongqing's Hongyan Village Bridge has not been opened to traffic for eight years.

There is no doubt that it is the Qinghai-Tibet Highway, on the one hand, because the total distance to be built on the Qinghai-Tibet Highway is particularly long, and on the other hand, it is easy to suffer from altitude sickness when building the road on the Qinghai-Tibet Plateau at a very high altitude, which has brought great difficulties to the construction.