In 2009, what name was proposed for the bridge connecting roads for a new route across the Colorado River for U.S. Route 93, known as the Hoover Dam Bypass?
U.S. Route 93 in Arizona with construction ongoing. This routing is part of a proposed Interstate 11 which could potentially connect Interstate 10 west of Phoenix with Interstate 515 southeast of Las Vegas. A segment of this new highway consists of a new route across the Colorado River called the Hoover Dam Bypass. The new crossing is the Mike O'Callaghan-Pat Tillman Memorial Bridge, the first so-called concrete-steel composite arch bridge built in the United States. The bridge is with a main span. The roadway is above the river. The bypass replaced the old section of U.S. 93 that approached and crossed directly over Hoover Dam,
Mike O'Callaghan–Pat Tillman Memorial Bridge after the Royal Gorge Bridge, and is the world's highest concrete arch bridge. Upon the completion of the Boulder City Bypass, the bridge has become a part of Interstate 11, concurrent with US 93. In 1935, the American Association of State Highway Officials (AASHO, later AASHTO) authorized a southward extension of U.S. Route 93 from its previous southern terminus in Glendale, Nevada to Kingman, Arizona by way of Las Vegas and Boulder City, crossing the Colorado River on the newly constructed Hoover Dam (also known then as Boulder Dam). Clark County was sparsely populated at the time, with a population