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China builds world’s highest road tunnel to connect Tibet

Thursday, Nov 10, 2016,18:23 IST By metrovaartha A A A

Beijing | China on Thursday completed work on the world’s highest road tunnel costing about USD 170 million on the Sichuan-Tibet highway which will shorten the time to reach Tibet by two hours.

The seven-km long tunnel, situated 6,168 metre above sea level, passes through the main peak of Chola Mountain.

Shortening the time from Chengdu, capital of Sichuan province, to Nagqu in Tibet by two hours, and avoiding the most dangerous section on the highway.

The tunnel, with two lanes in each direction, was under construction since 2012. It will open to traffic next year.

The current 40-km precipitous mountain highway in the Tibetan Autonomous Prefecture of Garze takes over two hours to traverse, with dangers from avalanches and rockfalls not to mention the extreme cold and low oxygen level, state-run Xinhua news agency reported.

Built at a cost of 1.15 billion yuan (USD 170 million), the seven-km long tunnel only takes 10 minutes to go through.

The highway will be able to accommodate 4,000 to 5,000 vehicles a day, as compared with around 1,500 now.

“It has been the most difficult tunnel that China Railway ever built,” said Yao Zhijun, chief engineer of the project.

Built in 1951, Sichuan-Tibet Highway was China’s first highway in Tibet.

There are now two more major highways – the Qinghai-Tibet highway and Xinjiang-Tibet highway.

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