China completes first high-speed rail tunnel under the Yangtze River
- Posted on July 25, 2026
- By South China Morning Post
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- 1 min read
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China completes first high-speed rail tunnel under the Yangtze River
The Caiyuanba Yangtze River Railway Tunnel in Chongqing will form a key section in a new line linking the megacity with the southeast coast.