The longest underwater highway tunnel in China has opened

China’s longest underwater highway tunnel is now open to vehicle traffic after nearly four years of construction.
The Taihu tunnel is 10.79 kilometers (6.65 miles) long and runs beneath Lake Taihu in eastern China’s Jiangsu Province, about 50 kilometers east of Shanghai.

According to Jiangsu government officials, the tunnel cost 9.9 billion yuan (approximately $1.56 billion). On January 9, 2018, construction began.

The tunnel is part of the Changzhou-Wuxi Highway, which will be open to the public on December 30, 2021. It serves as an alternate expressway between Shanghai and Nanjing, the capital of Jiangsu.
It was built to relieve traffic congestion in the cities near Lake Taihu while also promoting the economic development of the cities in the Yangtze River Delta area. It connects the expressways of Suzhou, Wuxi, and Changzhou.

So, how does the Taihu tunnel compare to others around the world? Norway’s 14.3-kilometer twin-road Ryfast tunnel, which connects the cities of Stavanger and Strand, is the world’s longest under construction highway tunnel.
The underwater tunnel portion of the 9.6-kilometer-long Tokyo Bay Aqua-Line, a vehicle highway that runs beneath Tokyo Bay.

However, in terms of underwater tunnels in general, the Channel Tunnel, which connects England and France by rail, takes first place. Its submerged portion is 37.9 kilometers long, making it the world’s longest underwater tunnel.

2 thoughts on “The longest underwater highway tunnel in China has opened”

  1. Jennifer A Swallow – Boulder, CO – Born and raised in Buffalo, NY, Jennifer’s passion for reading began at the tender age of 3 when she enjoyed flipping through her father’s electronics catalogs to pick out the words she knew. That budding obsession with the written word progressed into late nights under the bed covers with books and a flashlight – and a reputation as the only child ever to be reprimanded for reading too much. As an adult, she found she still loved to read more than write, but is working on creating more of a balance between the two. She can be found 80 percent of the year in beautiful Boulder, Colorado hiking with her Finnish Lapphund, and the rest of the year travelling to exciting destinations, both domestic and international.

    Nope, not interested in driving an underwater tunnel that long. No way, no how.

  2. Pingback: Public access to a century-old tunnel under Niagara Falls

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