Serving the largest metropolitan area of South Carolina, that of Greenville-Spartanburg, Interstate 85 follows the Appalachian piedmont between the Savannah River (Georgia state line) and North Carolina. The corridor experiences explosive growth over the last 20 years with a population boom consuming the cities of Atlanta, Charlotte, and Durham. The city of Greenville shares in the growth that its larger neighbors have experienced.
During the 1990s and continuing through 2002, Interstate 85 was reconstructed between Greenville and Spartanburg. This roadwork composes a widening of the freeway from four to six lanes and eight overall lanes between mileposts 19 and 80.5. Also included in the project is the upgrade of the Exit 42 junction with Interstate 185 and U.S. 29. The former partial "Y" interchange now is full access with the Greenville freeway spur and tolled Southern Connector. Northward towards Spartanburg, construction continues on the widening from four to six lanes. The six lane alignment to the north of Business Loop 85 saw completion in 1992. Business Loop 85 straddles the city limits of Spartanburg on the original four-lane alignment of Interstate 85.
The guide to Interstate 85 is divided into two separate pages: