Driving from Louisville, Kentucky to Nashville, Tennessee on Interstate 65

On July 15, 2007, Kentucky officially raised its speed limits on Interstate and State Parkway Highways to 70 miles per hour. Until that date, Kentucky was the only state along I-65's path that had a speed limit of 65 mph (105 km/h). In 2008, Governor Steve Beshear ordered the entire route to be widened to a minimum of six lanes through the entire state. As of 2017, the majority of this project is complete. In July 2017, the KYTC opened a new interchange of I-65 at mile marker 30 to provide access to the Kentucky Transpark near Bowling Green. The $66.8 million project, which began in 2016, would improve traffic conditions along I-65 and U.S. 31W in northeastern Warren County. The first phase of the project include the new interchange, Exit 30, plus a four-lane connector road going from the interstate to U.S. 68 just east of Bowling Green. The second phase is building a two-lane connector road running from U.S. 68 to U.S. 31W between Bowling Green and Oakland, thus relieving congestion problems on both U.S. routes. This was the first new exit on I-65 since 2002, when the interchange with KY 234 was built to connect downtown Bowling Green from the freeway.