LAKE MEAD, NRA, NV - OCTOBER 14: A state flag of Arizona, an American flag and a state flag of Nevada are hung over the side of the Mike O'Callaghan-Pat Tillman Memorial Bridge part of the Hoover Dam Bypass Project during a dedication ceremony October 14, 2010 in the Lake Mead National Recreation Area, Nevada. The 1,900-foot-long structure sits 890 feet above the Colorado River, about a quarter of a mile downstream from the Hoover Dam. The USD 240 million project to relieve vehicle traffic on the Hoover Dam began in 2003, and is scheduled to be open to traffic by next week. (Photo by Ethan Miller/Getty Images)
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