Interstate 20 (I-20) is the main east–west Interstate Highway in the state of South Carolina, linking the state with important transportation and business hubs to the north, west, and south, including Atlanta, Georgia; Charlotte, North Carolina (via I-77); Savannah, Georgia (via I-95); and Washington, D.C. (via I-95). I-20 travels 141.51 miles (227.74 km) west to east, from the Georgia state line at North Augusta, through Columbia, to end at I-95 in Florence. Past I-95, the roadway continues as Interstate 20 Business (I-20 Bus.) for about two miles (3.2 km) to U.S. Route 76 (US 76), which goes to downtown Florence.
The Interstate parallels US 1 closely from the state line to Camden where US 1 diverts away from the route and head northeast towards North Carolina while I-20 turns and heads eastward towards Florence.
^Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2021". Route Log and Finder List. Federal Highway Administration. Retrieved May 9, 2022.
^Google (June 5, 2014). "Interstate 20 in South Carolina" (Map). Google Maps. Google. Retrieved June 5, 2014.
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Global Information
I-20 at Georgia state line
I-95 / I-20 BS in Florence
