"Lady Bird" to dig tunnel for D.C.'s Clean Rivers Project

04/10/2013 | DCist.com (Washington, D.C.)

D.C. Water, the District of Columbia's water and sewer authority, has christened a 1,300-ton, 400-foot-long, German tunnel-boring machine "Lady Bird." The machine will be used to carve a four-mile tunnel beneath the Potomac River to store stormwater runoff from the sewer system. The project is part of the the Clean Rivers Project. Three other tunnels are also planned.

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DCist.com (Washington, D.C.)

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