Taihu Tunnel is becoming a hot destination thanks to its color-changing LED lighting system and unique architecture floating on the lake surface. (Photo: Xinhua)

The 10.79 km project, which officially opened to traffic in 2021, is one of the longest underwater tunnels in China. (Photo: Xinhua)

Not only reducing traffic, the tunnel also helps increase the number of tourists to famous attractions around Taihu Lake by 50%. (Photo: Xinhua)

Because the lake bottom has many layers of mud and clay, the engineering team used the dike method instead of traditional tunnel drilling for construction. (Photo: Xinhua)

Millions of cubic meters of concrete were used, along with ice cooling solutions and fiber optic monitoring to prevent cracking. (Photo: CCCC)

The construction process also applies robots, digital technology and artificial intelligence to increase accuracy and reduce labor. (Photo: CCCC)

In particular, the project focuses on ecological protection with a closed transport system, wastewater treatment and dust and noise reduction. (Photo: CCCC)

Once operational, the Taihu Tunnel will not only be an engineering marvel but will also become a tourism symbol and economic engine of the Yangtze River Delta. (Photo: X)

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