The is a national expressway in the

Chūgoku region The , also known as the region, is the westernmost region of Honshū, the largest island of Japan. It consists of the prefectures of Hiroshima, Okayama, Shimane, Tottori and Yamaguchi. As of the 2020 census, it has a population of 7,328,339 ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. It is owned and operated by

West Nippon Expressway Company The , abbreviated as , is one of the main operators of expressways and toll roads in Japan. It is headquartered on the 19th floor of Dojima Avanza in Kita-ku, Osaka. The company was established on October 1, 2005, as a result of the privatization ...

Naming

The expressway is officially referred to as the Chūgoku-Ōdan Expressway Onomichi Matsue Route. The Chūgoku-Ōdan Expressway Onomichi Matsue Route is the official designation for the Sanyō Expressway between Onomichi Interchange and Hiroshima Junction, the Onomichi Expressway between Onomichi Junction and Miyoshi-Higashi Junction, and the Matsue Expressway between Miyoshi-Higashi Junction and Matsue Interchange (concurrent with the Chūgoku-Ōdan Expressway Onomichi Matsue Route).

Overview

The first section of the expressway was opened in 2010. The final section of the expressway (18.4 km between Kisa Interchange and Sera Interchange) was opened on March 22, 2015. The route originates from its junction with the Sanyō Expressway and extends northward. At its northern terminus it connects to the

Chūgoku Expressway The (part of Asian Highway Network ) is an expressway in Japan, which extends from Suita, Osaka to Shimonoseki, Yamaguchi. It connects Kansai and Chūgoku regions in western Honshu, Japan's main island. Other major cities along the express ...

. The entire route is toll-free with the exception of the short (0.9 km) section between Onomichi Junction and Onomichi Toll Gate. The route is 2 lanes for its entire length, with some overtaking areas. The speed limit is 70 km/h.

List of interchanges and features

* IC -

interchange Interchange may refer to: Transport * Interchange (road), a collection of ramps, exits, and entrances between two or more highways * Interchange (freight rail), the transfer of freight cars between railroad companies * Interchange station, a rai ...

, SIC -

smart interchange A is a feature of Japanese expressways that provides exclusive access to and from the expressway for vehicles equipped with electronic toll collection (ETC). The feature increases accessibility to and from the expressway in less-populated areas w ...

, JCT -

junction Junction may refer to: Arts and entertainment * ''Junction'' (2012 film), an American film * ''Junction'' (2024 film), an American film * ''Jjunction'', a 2002 Indian film * ''Junction'' (album), a 1976 album by Andrew Cyrille * Junction (E ...

, SA -

service area A rest area is a public facility located next to a large thoroughfare such as a motorway, expressway, or highway, at which drivers and passengers can rest, eat, or refuel without exiting onto secondary roads. Other names include motorway ser ...

, PA -

parking area A parking lot or car park (British English), also known as a car lot, is a cleared area intended for parking vehicles. The term usually refers to an area dedicated only for parking, with a durable or semi-durable surface. In most jurisdic ...

, BS -

bus stop A bus stop is a place where Public transport bus service, buses stop for passengers to get on and off the bus. The construction of bus stops tends to reflect the level of usage, where stops at busy locations may have shelter (building), shelters ...

, TN -

tunnel A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ve ...

, BR -

bridge A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...

External links

West Nippon Expressway Company
Expressways in Japan Roads in Hiroshima Prefecture 2010 establishments in Japan {{Japan-road-stub