There are 11 Interstate Highways—5 primary and 6 auxiliary—that exist entirely or partially in the U.S. state of South Carolina. As of December 31, 2013, the state had a total of 850.80 miles (1,369.23 km) of interstate and 11.80 miles (18.99 km) of interstate business, all maintained by the South Carolina Department of Transportation (SCDOT).
| Interstate Highways of South Carolina | |
|---|---|
Highway shields for I-26, I-385, and I-20 Bus. Spur | |
Interstate Highways highlighted in red; future sections in blue; unbuilt sections in orange | |
| System information | |
| Maintained by SCDOT | |
| Length | 862.60 mi (1,388.22 km) |
| Formed | June 29, 1956 |
| Highway names | |
| Interstates | Interstate XX (I-XX) |
| Business Loop: | Interstate XX Business Loop (I-XX Bus.) |
| Business Spur: | Interstate XX Business Spur (I-XX Bus.) |
| System links | |
| |
Primary Interstates
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| I-20 | 141.51 | 227.74 | I-20 at the GA state line | I-95 / I-20 Bus. in Florence | 1964 | current | ||
| I-26 | 220.95 | 355.58 | I-26 at the NC state line | US 17 in Charleston | 1960 | current | ||
| I-73 | — | — | US 17 in Briarcliffe Acres | Future I-73 at the NC state line | proposed | — | Future designation along SC 22 | |
| I-74 | — | — | Future I-74 at the NC state line | US 17 in Garden City | proposed | — | Future designation along SC 31 | |
| I-77 | 91.05 | 146.53 | I-26 in Cayce | I-77 / US 21 at the NC state line | 1975 | current | ||
| I-85 | 106.28 | 171.04 | I-85 at the GA state line | I-85 at the NC state line | 1959 | current | ||
| I-95 | 198.76 | 319.87 | I-95 at the GA state line | I-95 at the NC state line | 1968 | current | ||
Auxiliary Interstates
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| I-126 | 3.680 | 5.922 | I-26 / US 76 in Columbia | US 21 / US 76 / US 176 / US 321 in Columbia | 1961 | current | ||
| I-185 | 17.7 | 28.5 | I-385 in Mauldin | US 29 in Greenville | 1961 | current | Toll road between I-385 and I-85. | |
| I-326 | 5.24 | 8.43 | I-26 in Cayce | SC 48 in Columbia | 1976 | 1995 | Was an unsigned designated route, replaced by I-77. | |
| I-385 | 42.16 | 67.85 | I-26 near Clinton | US 276 in Greenville | 1962 | current | ||
| I-520 | 7.72 | 12.42 | I-520 at the GA state line | I-20 in North Augusta | 2004 | current | ||
| I-526 | 19.26 | 31.00 | US 17 / SC 7 in Charleston | I-526 Bus. / US 17 in Mount Pleasant | 1989 | current | ||
| I-585 | 2.25 | 3.62 | US 176 / US 221 / SC 9 in Spartanburg | I-85 Bus. / US 176 near Spartanburg | 1959 | current | ||
| ||||||||
Business routes
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| I-20 BS | 2.110 | 3.396 | I-20 / I-95 in Florence | US 76 Conn. / West Evans Street in Florence | 1970 | current | ||
| I-85 BL | 8.770 | 14.114 | I-85 northwest of Fairforest | I-85 east of Valley Falls | 1995 | current | Freeway-grade business loop | |
| I-126 BS | 0.60 | 0.97 | I-126 / US 21 / US 76 / US 176 / US 321 in Columbia | US 21 / US 76 / US 176 / US 321 in Columbia | 1980 | — | ||
| I-385 BS | 0.490 | 0.789 | I-385 / US 276 in Greenville | US 29 / SC 183 in Greenville | 1962 | current | Unsigned business spur | |
| I-526 BS | 1.570 | 2.527 | I-526 / US 17 in Mount Pleasant | SC 703 in Mount Pleasant | 1992 | current | ||
| I-585 BS | 1.60 | 2.57 | US 29 / US 176 / SC 9 in Spartanburg | I-585 / US 176 / US 221 / SC 9 in Spartanburg | 1959 | — | ||
| ||||||||
See also
- U.S. roads portal
- South Carolina portal
wikipedia, wiki, encyclopedia, book, library, article, read, free download, Information about List of Interstate Highways in South Carolina, What is List of Interstate Highways in South Carolina? What does List of Interstate Highways in South Carolina mean?