Kōchi Expressway

The Kōchi Expressway (高知自動車道, Kōchi Jidōsha-dō) is a national expressway in the Shikoku region of Japan. The expressway is numbered E32 between Kawanoe Junction and Kōchi Interchange and E56 between Kōchi and Kuroshio-Ōgata Interchanges under the MLIT's "2016 Proposal for Realization of Expressway Numbering.[1]

Kochi Expressway
高知自動車道
Route information
Length206.5 km (128.3 mi)
Existed1987–present
Major junctions
FromShikokuchūō
ToKuroshio, Kōchi
Highway system
National highways of Japan
Expressways of Japan

Overview

The first section of the expressway was opened to traffic in 1992. As of March 2008 the expressway incomplete in many areas. The next section is scheduled to open in 2009 (Susaki-Higashi Interchange to Shinshōgawa-bashi East Interchange). After this, all future sections will be built according to the New Direct Control System, whereby the burden for construction costs will be shared by the national and local governments and no tolls will be collected. Currently the section between Susaki-Higashi Interchange and Kuroshio-Ōgata Interchange operates according to this principle.

The expressway is 4 lanes from Kawanoe Junction to Kōchi Interchange, and 2 lanes for all remaining sections.

List of interchanges and features

The expressway is a direct extension of the Takamatsu Expressway. Therefore, the distance and exit numbers continue from the sequence of the Takamatsu Expressway, starting at 56.8 kilometres (35.3 mi).

No. Name Connections Dist. from
Origin		 Bus Stop Notes Location
6 Kawanoe JCT Takamatsu Expressway
Matsuyama Expressway		 56.8 Shikokuchūō Ehime
7 Kawanoe-Higashi JCT Tokushima Expressway 59.2
8 Shingū IC Pref. Route 5 (Kawanoe Ōtoyo Route) 67.8
PA Umatate PA 69.5 Kawanoe-bound only
PA Tachikawa PA 80.5 Kōchi-bound only Ōtoyo Kōchi
9 Ōtoyo IC/BS National Route 439 86.0 ○
10 Nankoku IC National Route 32 107.0 Nankoku
SA Nankoku SA 109.7
11 Kōchi JCT Kōchi-Tōbu Expressway 114.7 Expected to open in 2020 Kōchi
Kōchi IC Pref. Route 44 (Kōchi Kita Kanjō Route)
12 Ino IC National Route 33 (Kōchi-Nishi Bypass) 125.0 Ino
13 Tosa IC National Route 56 (Tosa-shi Bypass) 134.0 Tosa
13-1 Tosa PA/SIC 139.5 SIC: Kōchi-bound
Open 06:00-22:00
TB Susaki-Higashi TB 148.5 Susaki
14 Susaki-Higashi IC National Route 56 148.9 Kuroshio-bound exit, Kōchi-bound entrance only
15 Susaki-Chūō IC National Route 56
Pref. Route 310 (Susaki Teishajō Route)		 152.2 Kuroshio-bound exit, Kōchi-bound entrance only
Shinshōgawa-bashi East Temporary Interchange National Route 56 153.4 abandoned on March 5, 2011
16 Susaki-Nishi IC National Route 56 153.8
17 Nakatosa IC National Route 56 160.6 Nakatosa
18 Shimanto-Higashi IC Pref. Route 387 (Shimanto-Higashi Inter Route) 169.2 Kuroshio-bound exit, Kōchi-bound entrance only Shimanto
19 Shimanto-Chūō IC National Route 56 175.3
Planned route
Through to National Route 56
20 Shimanto-Nishi IC National Route 56 180.7 Shimanto-bound exit, Kuroshio-bound entrance only Shimanto Kōchi
21 Kuroshio-Okobushinokawa IC National Route 56 186.3 Shimanto-bound entrance only Kuroshio
Kuroshio-Saga IC National Route 56 192.5 Planned
Kuroshio-Kamikawaguchi IC Pref. Route 55 (Ōgata Taishō Route) 200.3 Planned
Kuroshio-Ōgata IC National Route 56 206.5 Planned
Through to Nakamura Sukumo Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Closed/former
  •       Incomplete access
  •       Tolled
  •       Unopened

References
  1. "Japan's Expressway Numbering System". www.mlit.go.jp.
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