Editing Interstate 526 (section)

{{short description|Highway in South Carolina}}
{{Use American English|date=April 2025}}
{{Use mdy dates|date=March 2015}}
{{Infobox road
|state=SC
|type=I
|route=526
|map={{maplink-road|from=Interstate 526.map}}
|map_custom=yes
|map_notes=I-526 highlighted in red; future section in blue; unbuilt future section in orange
|alternate_name=Mark Clark Expressway
|length_mi=19.56
|length_ref=<ref name="FHWA-Log">{{cite web |year=2018 |title=Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2018 |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |work=Route Log and Finder List |publisher=[[Federal Highway Administration]] |accessdate=January 22, 2022}}</ref><ref name="SCDOT GIS"/>
|counties=[[Charleston County, South Carolina|Charleston]], [[Berkeley County, South Carolina|Berkeley]]
|direction_a=West
|terminus_a={{Jct|state=SC|US|17|SC|7}} in [[Charleston, South Carolina|Charleston]]
|junction={{Jct|state=SC|I|26}} in [[North Charleston, South Carolina|North Charleston]]<br />{{Jct|state=SC|US|52|US|78}} in [[North Charleston, South Carolina|North Charleston]]
|direction_b=East
|terminus_b={{Jct|state=SC|US|17|BS|526|dab2=Mount Pleasant}} in [[Mount Pleasant, South Carolina|Mount Pleasant]]
|established=1989
|spur_type=I
|spur_of=26
|previous_type=SC
|previous_route=522
|next_type=SC
|next_route=527
}}
'''Interstate&nbsp;526''' ('''I-526''') is a {{convert|19.56|mi|km|adj=on}} [[List of auxiliary Interstate Highways|auxiliary route]] of [[Interstate 26 in South Carolina|I-26]], providing a partial beltway around [[Charleston, South Carolina|Charleston]], [[South Carolina]], in the [[United States]]. The route serves several purposes, firstly, as a [[Bypass (road)|bypass]] for through traffic on [[U.S. Route 17 in South Carolina|U.S. Route&nbsp;17]] (US&nbsp;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 {{Convert|10|mi|km}}. After the eastern terminus, the roadway continues as a short [[business route]], known as Interstate&nbsp;526 Business (I-526 Bus.).