China begins construction on £3.2 billion undersea railway tunnel to cut travel time

Construction has begun on the Jintang Undersea Tunnel, a 10-mile railway tunnel in China. It will connect Ningbo City to Zhoushan City and is part of the larger Ningbo-Zhoushan Railway project, which is set to be completed by 2028. The tunnel will be one of the longest undersea railway tunnels globally, featuring a nearly seven-mile section for high-speed trains. It aims to reduce travel time between the two cities from 90 minutes to just 30 minutes. The project involves complex engineering challenges, including navigating geological transitions and existing infrastructure. The overall investment for the Ningbo-Zhoushan Railway project is approximately £3.2 billion.