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Tag Archives: Kiewit Underground

UM Engineering Professor Lance Yarbrough assists in Delaware Aqueduct Bypass Project

For five weeks straight, Lance Yarbrough spent most of his days at the end of a tunnel 600 feet below the Hudson River. The assistant professor of geology and geological engineering at the University of Mississippi was watching “Nora” – a 470-foot-long, 2.7-million-pound tunnel boring machine – mine through rock 900 feet beneath the Earth’s surface as part of the ...

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