Jintang tunnel will link Ningbo and Zhoushan islands in China’s east and is expected to be built by the end of 2026.
China is a step closer to completing what will be one of the world’s longest undersea high-speed railway tunnels, with excavation work under way on the section below the sea.
The Jintang tunnel will link Ningbo – a city south of Shanghai – with the Zhoushan islands, in the eastern province of Zhejiang.
Excavation work on the undersea segment of the tunnel began on Tuesday and is advancing at a rate of 16 metres (52 feet) a day on average, according to state media.
