It is owned and operated by partially by the East Nippon Expressway Company and the Ministry of Land, Infrastructure, Transport and Tourism (MLIT).
There is no direct connection between the Hitakami of the Nihonshoki and the modern Hidaka Subprefecture.
[4] In consideration of the effects of the 2011 Tōhoku earthquake and tsunami, it was decided by MLIT that future sections of the expressway should follow a path further inland to avoid inundation by a tsunami.
[5] The expressway was temporarily closed after being damaged by the 2018 Hokkaido Eastern Iburi earthquake.
[6] Construction of the expressway is to be continued east to the town of Urakawa on the southeastern point of the island of Hokkaido.