October 3, 2022
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(CNN) — After practically 4 years of development, China’s longest underwater highway tunnel is now open to car visitors.

At a size of 10.79 kilometers (6.65 miles), the Taihu tunnel stretches underneath Lake Taihu in jap China’s Jiangsu Province, about 50 kilometers east of Shanghai.

In response to authorities officers in Jiangsu, the tunnel was constructed at a value 9.9 billion yuan (about $1.56 billion). Development started on January 9, 2018.

Over 2 million cubic meters of concrete have been used to construct the two-way tunnel, which has six lanes and is 17.45 meters extensive, experiences China’s official information company, Xinhua.

The ceiling of the tunnel has been outfitted with colourful LED lights, designed to stop driver fatigue.

A view of the LED ceiling put in within the 10.79-kilometer tunnel underneath Lake Taihu.


The tunnel is a part of the 43.9-kilometer Changzhou-Wuxi Highway, which opened to the general public on December 30, 2021. It gives another expressway for vacationers journeying between Shanghai and Nanjing, Jiangsu’s capital.

Connecting the expressways of Suzhou, Wuxi and Changzhou, it was constructed to alleviate visitors strain on the cities subsequent to Lake Taihu whereas selling the financial growth of the cities in Yangtze River Delta space.

So how does the Taihu tunnel stack up towards its international counterparts? The world’s longest underway highway tunnel is Norway’s 14.3-kilometer twin-road Ryfast tunnel, which runs between town of Stavanger and the municipality of Strand.

The underwater tunnel portion of the Tokyo Bay Aqua-Line, a car highway that travels underneath Tokyo Bay, is 9.6 kilometers.

By way of underwater tunnels usually, although, the highest honor goes to the Channel Tunnel, which connects England and France by rail. Its submerged portion runs for 37.9 kilometers, the longest of any underwater tunnel in the world.

Prime picture: An aerial picture taken on September 5, 2021 of the Nanquan part of the just-opened Taihu tunnel in east China’s Jiangsu Province. Credit score: Li Bo/Xinhua by way of Getty Photographs

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