Nevada State Highway 172
1963 specification highway marker.
Nevada 172 (former U.S. 93) ends at this security check point for entry into the Hoover Dam area. The overpass carries a realigned U.S. 93 eastward toward the Mike O'Callaghan - Pat Tillman Memorial Bridge over the Colorado River and into Arizona.
Photo by Brent Ivy, 8/12/2011.