for a future HOV exit in the median at the Terrell Mill Road underpass, however the remainder has no median, only a wide left shoulder and a concrete barrier. It was also left unknown how the lanes would tie into the interchange at I-285. Completion The project was completed and opened to traffic on September 8, 2018. The Cobb County bus system (CobbLinc) and the state-funded commuter bus system (GRTA Xpress) shifted the bus routes previously using I-75 or I-575 to the express toll lanes. When the lanes were opened to the public on September 8 they were toll-free for a two week trial period; however, all who used the lanes during that time were still required to have a Peach Pass (which has a minimum $20 toll load, plus other fees) to access it. Unlike the northeast express lanes on I-85 in Gwinnett, the northwest lanes charge a toll for high-occupancy vehicles and alternative-fuel vehicles. In 2018, the trade publication Roads & Bridges named the Northwest Corridor Express Lanes the number one road project of 2018 in the United States. Future The United States Department of Transportation awarded Cobb County a grant that will help pay for a project to install an exit ramp between the southern terminus of the express lanes and Akers Mill Road. The new ramp would improve access to Cumberland Boulevard from the express lanes. Cobb County's Department of Transportation expects to begin construction of the ramp in 2021. Junction list The mile markings of the express lanes shares the same numbering as the mainline interstates. The exits are not numbered. Interstate 75 Express Lanes Interstate 575 Express Lane References External links Northwest Corridor HOV/BRT webpage Transportation in Cobb County, Georgia Transportation in Cherokee County, Georgia Proposed bus rapid transit in the United States Bus rapid transit in Georgia (U.S. state) Proposed public transportation in Georgia (U.S. state) Interstate 75 Transportation in Atlanta Roads with a reversible lane