The is an incomplete
two-lane national
expressway in
Kōchi Prefecture
is a prefecture of Japan located on the island of Shikoku. Kōchi Prefecture has a population of 669,516 (1 April 2023) and has a geographic area of 7,103 km2 (2,742 sq mi). Kōchi Prefecture borders Ehime Prefecture to the northwest and Tok ...
. It is owned and operated by the
(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 80 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
is a prefecture of Japan located on the island of Shikoku. Kōchi Prefecture has a population of 669,516 (1 April 2023) and has a geographic area of 7,103 km2 (2,742 sq mi). Kōchi Prefecture borders Ehime Prefecture to the northwest and Tok ...
.
See also
*
Japan National Route 55
*
Kōchi Expressway
References
External links
Ministry of Land, Infrastructure and Transport: Shikoku Development Bureau{{Expressways of Japan
Roads in Kōchi Prefecture
Expressways in Japan
2011 establishments in Japan