The Northwest Corridor Express Lanes are made up of 29.7 miles along I-75 from Akers Mill Rd to Hickory Grove Road and along I-575 from I-75 to Sixes Road. Two express lanes have been built to the west of the existing lanes along I-75 between I-285 and I-575. From that interchange, one express lane was added along I-75 north to Hickory Grove Road and one express lane was added along I-575 to Sixes Road.
