This artist's rendering shows what the redesigned interchange of Boulder City Bypass and U.S. 93 would look like at Railroad Pass. Railroad Pass Casino is at left. If U.S. 93 is designated an interstate between Las Vegas and Phoenix, the bypass route would become part of the interstate, officials say.

Nevada Department of Transportation

This artist's rendering shows what the redesigned interchange of Boulder City Bypass and U.S. 93 would look like at Railroad Pass. Railroad Pass Casino is at left. If U.S. 93 is designated an interstate between Las Vegas and Phoenix, the bypass route would become part of the interstate, officials say.