State Route 594 (SR 594) comprises approximately 0.723 miles (1.164 km) of Russell Road, a section line road in the Las Vegas Valley. Russell Road is not a continuous road through the valley. It is the principal eastern local access for McCarran International Airport serving as the northern boundary for the eastern end of the road. The road terminates in the airport and resumes at Las Vegas Boulevard on the western edge of the airport.

SR 594 begins at Polaris Avenue and extends easterly over Interstate 15 to terminate at Las Vegas Boulevard (former SR 604).

The entire route is in Clark County.