The is a four-lane toll road in Ibaraki Prefecture, Japan. It is owned and operated by East Nippon Expressway Company.
The route is officially designated as a bypass for National Route 6; however, it is functionally an extension from the eastern terminus of the Kita-Kantà  Expressway. As such it is classified as a with the same design standard as other national expressways.
The first section was opened to traffic in 1996. A bridge spanning the Naka River was completed in 1999, completing the route. The road was expanded from 2 to 4 lanes in 2000.
The entire expressway is in Ibaraki Prefecture. The sequence of kilometer posts and exits continue from the eastern terminus of the Kita-Kantà  Expressway.