Nishi-Kyushu Expressway

Nishi-Kyūshū Expressway
西九州自動車道
Route information
Length: 150 km (90 mi)
Existed: 1988 – present
Major junctions
From: Fukushige Junction in Nishi-ku, Fukuoka
Fukuoka Expressway 2
Fukuoka Expressway 5
To: Takeo Junction in Takeo
Nagasaki Expressway
Location
Major cities: Karatsu, Imari, Matsuura
Sasebo
Highway system
National highways of Japan
Expressways of Japan
Hasami, Nagasaki, Japan

The Nishikyushu Expressway (西九州自動車道 Nishi-Kyūshū jidōshadō) is one of the Expressways of Japan from Fukuoka to Takeo. It runs through the prefecture of Saga, and the northern half of the Nagasaki prefecture. The total length is 150 km.

A whole part of the road is specified as the Route 497. This road has two toll zones. The Fukuoka and Maebaru toll zone is managed by Fukuoka Prefectual Road Public Corporation. The Takeo and Sasebo toll zone is managed by West Nippon Expressway Company. The others is managed by MLIT. This road is connected to Fukuoka Expressway Circular Route in Nishi-ku, Fukuoka and to Nagasaki Expressway in Takeo. From Nijō to Nijō Shika Interchange is overlap section of Nijō Hamatama road.

Overview

The first section of the expressway was opened to traffic in 1988. As of April 2016 the expressway incomplete in many areas. The next sections are scheduled to open in 2017 (Minamihata Taniguchi Interchange to Imari Higashi Interchange) and (Imabuku Interchange to Tsukinokawa Interchange). After this, Most of the incomplete areas 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 Nijō Shikaka Interchange and Minamihata Taniguchi Interchange, Yamashiro Kubara Interchange and Imabuku Interchange, and Saza Interchange and Sasebo Daitō Interchange operates according to this principle.

The expressway is 4 lanes from Fukushige Junction to Higashi Intersection (temporary interchange) and Saza Interchange to Sasebo Chūō Interchange, and 2 lanes for all remaining sections.

History

Interchanges

No. Name Connections Dist.
from
Origin
Bus
stop
Notes Location
JCT Fukushige JCT Fukuoka Expressway 2
Fukuoka Expressway 5
0.0 Fukuoka Fukuoka
Jyūrokuchō IC 0.8 Sasebo-bound entrance
2.0 Sasebo-bound exit
TB/PA Fukuoka Nishi TB/PA 2.1
Imajuku IC 3.5 For Fukuoka only
Susenji IC 6.6 For Sasebo only
TB Maebaru TB 12.1 Itoshima
Maebaru IC 12.6 For Fukuoka only
Higashi Intersection (temporary interchange) 14.2
Nijō IC Planned
Planned route
Through to Nijō Hamatama Road
Nijō Shikaka IC 0.0
Hamatama IC 3.8 Saga Karatsu
Karatsu IC 10.4
Karatsu Chichika Yamada IC 14.9
Kitahata IC 18.4
Minamihata Taniguchi IC 23.2 Imari
Imari Hagashi IC Scheduled to be opened in 2017
Planned route
Imari Naka IC Planned
Imari Nishi IC Planned
Kusuku IC Planned
Yamashiro Kubara IC 0.0
Imabuku IC 5.5 Nagasaki Matsuura
Tsukinokawa IC For Fukuoka only
Scheduled to be opened in 2017
Matsuura IC Scheduled to be opened in 2018
Planned route
Hirado Mikuriya Emukae IC Planned Nagasaki Sasebo
Emukae Shikamachi IC Planned
8 Saza IC 38.9 Saza
7 Ainoura Nakazato IC 34.9 Sasebo
6 Sasebo Chūō IC 29.9
5 Sasebo Minato IC 27.0 For Takeo only
4 Sasebo Daitō IC/TB 22.1
3 Sasebo Mikawachi IC/TB 14.8
2 Hasami Arita IC 10.1 Hasami
1 Takeo Minami IC/TB 0.0 For Fukuoka only Saga Takeo
6 Takeo JCT Nagasaki Expressway 0.7
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