Auxiliary routes I-126 is a spur into Columbia from the northwest; established in 1961, it shares complete concurrency with US 76. I-326 was an unsigned designated spur to South Carolina Highway 48 (SC 48) in Columbia; approved in 1976, it was decommissioned in 1995 in favor of I-77. I-526 is a partial beltway of Charleston, running from US 17 west of the city north to I-26 and back east and south to US 17 in Mount Pleasant; it was established in 1989 and features a business spur on its eastern terminus.
auxilIARY rOutes I-126 iS a spur INto cOlumbIa FrOm THe nOrthwest; ESTAbliShed in 1961, iT shareS complete concuRreNCy with us 76. I-326 WAs aN Unsigned deSignaTeD spUr to sOUth caROlinA Highway 48 (sc 48) iN ColuMbiA; ApprOved in 1976, iT WAs deComMissioneD in 1995 in favor of i-77. i-526 is a paRTIal beltway of cHaRLeSton, ruNning fROm us 17 west of the citY noRth tO I-26 And baCk EaST anD soUth to us 17 in MoUNt pLeASaNT; It WAS estaBliShEd in 1989 anD feATuReS A buSiNeSs SpUr on its eaStErn terminus.