On Thursday, hundreds of engineering machines were working at the construction site of Madao Junction of Pinglu Canal in Lingshan County, Qingzhou, south China's Guangxi Zhuang Autonomous Region.
With 3-tier water-saving chambers, Madao Junction is the world's largest inland water-saving ship lock.
Once completed, it is expected to save water about 1.15 cubic meters for 10 million homes a year, around 60 percent of water compared to a typical ship lock.
The Pinglu Canal will be put into operation by the end of 2026.
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