Interstate 77 in South Carolina
| Blue Star Memorial Highway | ||||
I-77 highlighted in red | ||||
| Route information | ||||
| Maintained by SCDOT | ||||
| Length | 91.2 mi (146.8 km) | |||
| Existed | 1975–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | I-26 in Cayce | |||
| North end | I-77 / US 21 at the NC state line | |||
| Location | ||||
| Country | United States | |||
| State | South Carolina | |||
| Counties | Lexington, Richland, Fairfield, Chester, York | |||
| Highway system | ||||
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Interstate 77 (I-77) is a north–south Interstate Highway, extending 91.2 miles (146.8 km) in the state of South Carolina, from the southern terminus at an interchange with I-26 near Columbia, north to the North Carolina state line near Rock Hill and Charlotte, North Carolina.