Interstate 77 in South Carolina

Interstate 77
Interstate 77
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
	US 21 / US 176 / US 321 in Cayce; US 76 / US 378 in Columbia; I-20 in Columbia; US 1 in Columbia; US 21 (multiple times);
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
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; South Carolina State Highway System; Interstate; US; State; Scenic;

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.