Why are the dams usually built in this type of profile water pressure?

Dams are typically built with a curved or arched profile to efficiently manage water pressure. This design allows the structure to direct the force of the water against the rock or earth behind it, distributing the pressure more evenly and reducing the risk of structural failure. The curved shape also minimizes the amount of material required, making it more economical while enhancing stability against the immense forces exerted by the water.