Hoover Dam

How did the people build the Hoover Dam around the water?

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2009-09-08 19:32:07

They blasted tunnels -- as big as four-lane highways -- right

through the canyon walls. For the next five years, the Colorado

River gushed through these diversion tunnels while 8,000 workers

toiled in the harsh, dry canyon bottom. Amazingly, they completed

the dam in less than five years -- ahead of schedule and under


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