The is an incomplete two-lane national expressway in Kōchi Prefecture. It is owned and operated by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). The route is signed as an auxiliary route of National Route 55 as well E55 under MLIT's "2016 Proposal for Realization of Expressway Numbering."
Route description The speed limit is 70 km/h for the entire route. There is only one lane traveling in each direction along the entirety of the expressway.
History The existing portions (as of February 2019) of the expressway opened in five phases between March 2011 and April 2016.
Kōchi Ryoma Airport-Kōnan Noichi section was opened on March 15th, 2025.
Junction list The entire expressway is in Kōchi Prefecture.
See also
Japan National Route 55 Kōchi Expressway
References
External links
Ministry of Land, Infrastructure and Transport: Shikoku Development Bureau