The removal of dams remains controversial because of high restoration costs, loss of low-cost electricity, and the loss of water storage facilities.
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Related: restoration, removal, controversial
Prev: More than 120 million people had directly benefited from the project since the first phase of its eastern and middle routes began supplying water. More than 40 big and medium-sized cities received water from the project, which has also helped ecological restoration of rivers and lakes along its eastern and middle routes.
Next: The entire structure has benefited from an upgraded maintenance program that has also included restoration of some of the EEOB's most spectacular historic interiors.