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๐ŸŒŠ Hoover Dam's Engineering Secrets

โณ How long ago was it constructed?


๐Ÿ—๏ธ Why was the location ideal?


โคต๏ธ Describe a Gravity Arch Dam


๐Ÿ’ฃ Describe the construction/building process.


https://youtu.be/hopBzK6BOwo

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