Overview of the opening section of the Ken-o Expressway

3 ring image image

April 27, 2007
East Nippon Expressway Co., Ltd.
Ministry of Land, Infrastructure, Transport and Tourism Kanto Regional Development Bureau
Central Japan Expressway Co., Ltd.

Overview of this section

For the first time on the west side of Tokyo, Expressway (Chuo Kan-Etsu Expressway) will be connected.

Ken-O Road Expressway is a ring-shaped motorway with a planned extension of about 300km at a radius of 40-60km from the center of Tokyo. It is 30.5km from Akiruno IC to Tsurugashima JCT to the present, Tsukuba JCT to Amitou IC. 13.5km, and 7.1km from Kisarazu East IC to Kisarazu JCT is open.

Overview of this section

Image image of the outline of the opening section this time

Opening date and time
National Route 468 Ken-o Expressway (Ken-O Road)
Open section
9.6km extension from Hachioji JCT to Akiruno IC
Opening IC
Hachioji Nishi IC (Shimokata Town, Hachioji City) [(Main) Yamada-nomiya front line]
  • Hachioji Nishi IC can only be used at the entrance to the Hachioji JCT area of Chuo Expressway and the exit from the Hachioji JCT area of Chuo Expressway.
Number of lanes
4 lanes
Design speed
80km/h
History of the section
Commercialization in 1985, site start in 1990, construction start in 1995