More miles of Interstate 40 pass through Tennessee than any other state. The interstate itself goes through the three largest cities in Tennessee: Memphis, Nashville, and Knoxville. Dandridge, Jackson, Crossville, and Cookeville are other notable cities and/or towns that I-40 travels through. I-40 goes through all of the three Grand Divisions of Tennessee. Before leaving the state, I-40 emerges into the Great Smoky Mountains. In May 2008, the portion of I-40 in Knoxville will be under construction for around 14 months.