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Dams are built by digging a large trench across the river and then filling it with earth or rocks to create a barrier. The dam can be further reinforced by adding concrete or steel walls, gates, and other structures, depending on the type of dam being built.
Dams are built by digging a large trench across the river and then filling it with earth or rocks to create a barrier. The dam can be further reinforced by adding concrete or steel walls, gates, and other structures, depending on the type of dam being built.
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