Interstate 26 (abbreviate I-26) is a nominally east/west (but physically more south/north) 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 south and southeast to U.S. Route 17 in Charleston, South Carolina. The portion from Mars Hill, North Carolina, east (compass south) to Interstate 240 in Asheville, North Carolina, is signed as FUTURE I-26 because it does not yet meet Interstate Highway standards; a short realignment is also planned in Asheville.