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Global Project of the Year Turns 1-Hour Car Ride into 5-Minute Journey Along the Seafloor

Good News Network
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78% Informative

Dalian Bay Undersea Tunnel spans over 2 miles of water and connects the peninsula-bound city of the same name with the mainland.

18 tubes of continuously poured concrete make up the undersea structure, each consisting of 7 segments containing 6 lanes for traffic.

All 18 tubes were laid in just 20 months , and after assembly wrapped up in April 2023 , the tunnel was opened in 2024 .