Interstate 526

Interstate 526 marker
Interstate 526
Mark Clark Expressway
Map
I-526 highlighted in red; future section in blue; unbuilt future section in orange
Route information
Auxiliary route of I-26
Maintained by SCDOT
Length19.56 mi[1][2] (31.48 km)
Existed1989–present
NHSEntire route
Major junctions
West end US 17 / SC 7 in Charleston
Major intersections I-26 in North Charleston
US 52 / US 78 in North Charleston
East end US 17 / I-526 BS in Mount Pleasant
Location
CountryUnited States
StateSouth Carolina
CountiesCharleston, Berkeley
Highway system
SC 522 SC 527

Interstate 526 (I-526) is a 19.56-mile (31.48 km) auxiliary route of I-26, providing a partial beltway around Charleston, South Carolina, in the United States. The route serves several purposes, firstly, as a bypass for through traffic on U.S. Route 17 (US 17) to avoid downtown Charleston, and, secondly, for traffic on I-26 bound for the coastal towns located north and south of Charleston. The route is not yet complete, as the western terminus it is planned for the route to be extended an additional 10 miles (16 km). After the eastern terminus, the roadway continues as a short business route, known as Interstate 526 Business (I-526 Bus.).

  1. ^ "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2018". Route Log and Finder List. Federal Highway Administration. 2018. Retrieved January 22, 2022.
  2. ^ Cite error: The named reference SCDOT GIS was invoked but never defined (see the help page).