The freeway runs entirely on the island of Kyūshū.

The first section of the expressway was opened to traffic in 1999.

Most of the incomplete areas were built according to the New Direct Control System, whereby the burden for construction costs will be shared by the national and local governments and no tolls will be collected.

The expressway is 4 lanes from Kitakyushu Junction to Kanda Kitakyushu-kūkō Interchange and Hiji Junction to Ōita Miyagawachi Interchange, and 2 lanes for all remaining sections.

The route parallels the Nippō Main Line of Kyushu Railway Company and National Route 10 for much of its length.