A colossal machine called the "Lady Bird" is boring a huge tunnel under Washington, D.C., to channel storm water for treatment, keeping runoff out of the city's notoriously polluted rivers. The $30 million machine is named for Lady Bird Johnson, who, as First Lady of the United States, had advocated for cleaner rivers around the nation's capital.
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Click to learn more about the "Lady Bird" and the tunnel it's digging:
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PRODUCER AND VIDEOGRAPHER: Jason Kurtis
EDITOR: Nick Lunn
Why a Giant Machine Is Digging a Tunnel Under D.C. | National Geographic
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