The metro Tucson region and Southern Arizona are readily connected to the global marketplace with strategic north-south/east-west rail and a well-connected highway infrastructure. Tucson is located along Interstate 10, one of only three coast-to-coast Interstates. Just a 45-minute drive south of Tucson on I-19, is the recently expanded Mariposa port of Entry, one of the busiest ports of entry in the U.S. Mariposa boasts some of the shortest wait times on the U.S.-Mexico border. Also, a $134 million project is currently under construction to further improve the flow of commercial truck traffic at the port of entry. Located on Union Pacific’s main line, Tucson is home to the Port of Tucson, an inland port, intermodal facility and business park located in Tucson’s Foreign Trade Zone.