Interstate 26

Fact Box

Interstate 26
File:Interstate 26 map.png
349 miles
West end- Kingsport, TN
East end- Charleston, SC
States served- TN, NC, SC

Interstate 26 (I-26) is a nominally east-west (but physically more northwest-southeast diagonal) main route of the Interstate Highway System in the Southeastern United States. I-26 runs from the junction of U.S. Route 11W and U.S. Route 23 in Kingsport, Tennessee, generally southeastward to U.S. Route 17 in Charleston, South Carolina. The portion from Mars Hill, North Carolina, east (compass south) to Interstate 240 inAsheville, North Carolina, has signs indicating FUTURE I-26 because the highway does not yet meet all of theInterstate Highway standards. A short realignment as an improvement in the expressway was also planned in Asheville, but has been postponed indefinitely due to North Carolina's budget shortfalls.

Northwards from Kingsport, US-23 continues north to Portsmouth, Ohio, as the Corridor B of the Appalachian Development Highway System, and beyond to Columbus, as the Corridor C. In conjunction with the Columbus-Toledo, Ohio corridor formed by Interstate 75, U.S. 23, and State Route 15, I-26 forms part of a mostly high-speed four-or-more-lane highway from the Great Lakes to the Atlantic Coast at Charleston, South Carolina. There are no plans for further official Interstate 26 extensions farther north than Northern Tennessee.


Auxiliary routes

  • Interstate 126 is a spur into Columbia, South Carolina from the northwest.
  • Interstate 526 is a partial beltway of Charleston, South Carolina, running from U.S. Route 17 west of the city north to I-26 and back east and south to US-17 east of Charleston.