Engineering Marvel of the Day

A modern marvel of engineering is nearing completion and will reshape the image of one of our nation's most famous symbols.

Phase 4 of the Hoover Dam Bridge Project is complete.

The project is on schedule to reshape the way travelers move to and from Nevada and Arizona.

U.S. 93 uses the top of Hoover Dam to cross the Colorado River. U.S. Highway 93 is the major commercial corridor between the states of Arizona, Nevada, and Utah; it is also on the North American Free Trade Agreement (NAFTA) route between Mexico and Canada.

The traffic congestion caused by the inadequacy of the existing highway across the dam imposes a serious economic burden on the states of Arizona, Nevada and Utah. The traffic volumes, combined with the sharp curves on U.S. 93 in the vicinity of Hoover Dam, create a potentially dangerous situation. A major catastrophe could occur, involving innocent bystanders, millions of dollars in property damage to the dam and its facilities, contamination of the waters of Lake Mead or the Colorado River, and interruption of the power and water supply for people in the Southwest.

Arizona Central article

Visualization of Hoover Dam Bridge

Video footage of bridge construction