Top 10 Largest Dams in the United States (2024)

10. Chief Joseph Dam – Washington, second-largest power producer.

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Biggest Dams in the US

9. John Day Dam – Oregon/Washington, hydroelectric power.

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Biggest Dams in the US

8. Shasta Dam – California, vital for water storage.

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Biggest Dams in the US

7. Garrison Dam – North Dakota, supports irrigation.

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Biggest Dams in the US

6. Dworshak Dam – Idaho, tallest straight-axis dam.

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Biggest Dams in the US

5. Fort Peck Dam – Montana, major earthen dam.

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Biggest Dams in the US

4. Oroville Dam – California, tallest U.S. dam.

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Biggest Dams in the US

3. Glen Canyon Dam – Arizona, key for water storage.

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Biggest Dams in the US

2. Grand Coulee Dam – Washington, largest structure, high power output.

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Biggest Dams in the US

1. Hoover Dam – Nevada/Arizona, iconic power source.

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Biggest Dams in the US