The new Hoover Dam Bypass Bridge currently under construction will provide residents of White Hills Equestrian Estates an even quicker route to and from Las Vegas. Formally named the Mike O'Callaghan - Pat Tillman Memorial Bridge, the new bridge and improved approaches will be located 1500 feet downstream from the existing bridge.

The new route is needed for several reasons. U.S. Highway 93 is the primary link between Phoenix and Las Vegas, two cities that have seen population explosions since Hoover Dam's completion. The section of U.S. 93 that approaches and crosses Hoover Dam is today woefully inadequate. It is one lane in each direction, narrow, with dangerous sharp turns and poor visibility. In the wake of the September 11, 2001 attacks, truck traffic over the Hoover Dam has been diverted south to a river crossing near Laughlin NV, in an effort to safeguard the dam from hazardous spills or explosions. This disruption, however, has not eliminated the threat of a possible attack on the dam itself, as regular traffic can still pass over it. The bypass bridge is therefore intended to completely remove all 'through' traffic from the dam area, improve travel times, replace the dangerous roadway, and reduce the threat of an attack at the dam site.

The largest obstacle to the project is the river crossing itself. The bridge will be four lanes wide across a 1,900 foot span. It will be located 1,500 feet downstream from the Hoover Dam and will span the river at a height of 840 feet above the water. When completed, it will be the first concrete-steel composite arch bridge built in the United States.