Interstate 326 South Carolina

I-326 South Carolina

Interstate 326 was the temporary designation for the southernmost section of Interstate 77 between I-26 at Cayce and South Carolina 48 (Bluff Road) at Columbia. Approved by AASHTO on July 13, 1976, Interstate 326 however was not signed. Guide signs instead referenced the freeway as “To S.C. 48” and then “TEMP S.C. 478.”1

Route Information

  • East End – Columbia, SC

  • West End – Cayce, SC

  • Mileage – 5

  • Cities – Cayce, Columbia

  • JunctionsI-26

Source: estimate from 2007 Rand McNally Road Atlas

Columbia, SC - 1980 Map
I-326 on the 1980 South Carolina Official Highway Map. S.C. 77 shields appeared on the two other portions of eventual Interstate 77.

For SCDOT's Centennial, enjoy a "photo-a-day" from SCDOT's photo files. #SCDOT #SCDOT100 #SCDOTcentennial…

Posted by SCDOT on Wednesday, November 8, 2017


  • For SCDOT’s Centennial, enjoy a “photo-a-day” from SCDOT’s photo files. #SCDOT #SCDOT100 #SCDOTcentennial #SCDOTphotoaday The Department of Highways and Public Transportation was represented in the inaugural parade for Gov. Richard W. Riley on Jan. 10, 1979. [Facebook update]. Retrieved from

Page updated January 25, 2019.