Construction of the longest undersea subway tunnel in China completed Monday in Qingdao, a coastal city in Shandong Province.
The 5.4-km-long tunnel, between the stations of Dayang and Qingdao North, is part of the Subway Line No. 8 project in Qingdao.
Construction of the longest undersea subway tunnel in China was completed Monday in Qingdao, a coast
cover tunnel photo by: Matt Brown from London, England / CC BY
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