of I-20/I-26/I-126, including the system interchanges at I-20/I-26 and I-26/I-126 in Lexington and Richland counties. These improvements are proposed to increase mobility and enhance traffic operations by reducing existing traffic congestion within the I-20/I-26/I-126 corridor, while accommodating future traffic needs. The corridor's approximately of mainline Interstate include I-26 from exit 101 (Broad River Road/US 176) to east of the Saluda River, I-20 from the west of the Saluda River to west of the Broad River, and I-126 from I-26 to east of the interchange with Colonial Life Boulevard. Exit list All exits are unnumbered. Interstate 126 Business Interstate 126 Business (I-126 Bus) was a boulevard-grade business spur of I-126 along Elmwood Avenue between Huger Street and Bull Street in concurrence with US 21/US 76/US 176/US 321. The route was never marked on state, county, or city highway maps. Signage proliferated along the westbound route in the late 1970s from Bull Street to Assembly Street. However, by 2000, only one sign remained, and this was gone by the mid-2000s. At some point, I-126 absorbed part of the business spur from Huger Street to Gadsden Street. It is considered decommissioned as no current state or federal maps list it nor does any physical signage exist. See also References External links Mapmikey's South Carolina Highways Page: I-126 Transportation in Columbia, South Carolina 26-1 26-1 1 Transportation in Richland County, South Carolina