| 21. | "' Tekez?Dam "'is a double-curvature arch dam in the northern Tigray region of Ethiopia.
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| 22. | The Mongols also built arch dams in modern-day Iran.
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| 23. | The dam is an early arch dam constructed by the outlet system for its time.
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| 24. | In 2013, China completed an arch dam, Jinping 1 Dam, which is world's tallest at.
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| 25. | Two types of single-arch dams are in use, namely the constant-angle and the constant-radius dam.
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| 26. | In the arch dam, stability is obtained by a combination of arch and gravity action.
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| 27. | The "'Shapai Dam "'is an arch dam on the Caopo River in Sichuan Province, China.
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| 28. | Arch dam designs would continue to test new limits and designs such as the double-and multiple-curve.
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| 29. | An "'arch dam "'is a solid dam made of concrete that is curved upstream in plan.
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| 30. | The structure is the world's largest multiple-arch dam.
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