Onomichi Expressway

The Onomichi Expressway (尾道自動車道, Onomichi Jidōsha-dō) is a national expressway in the Chūgoku region of Japan. It is owned and operated by West Nippon Expressway Company.

Onomichi Expressway
尾道自動車道
Route information
Length49.9 km (31.0 mi)
Existed2010–present
Major junctions
FromOnomichi Junction in Onomichi, Hiroshima
Sanyō Expressway
ToMiyoshi-Higashi Junction/IC in Miyoshi, Hiroshima
Chūgoku Expressway
Location
Major citiesSera
Highway system
National highways of Japan
Expressways of Japan

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 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
No. Name Connections Dist. from
Origin		 Bus Stop Notes Location
Through to Nishiseto Expressway (planned)
(22-1) Onomichi JCT Sanyō Expressway 0.0 Onomichi
TB Onomichi TB 0.9
1 Onomichi-Kita IC National Route 486 7.0
2 Sera IC National Route 432 19.2 Sera
3 Konu IC Hiroshima Prefectural Route 424 31.5 Miyoshi
4 Kisa IC National Route 184 39.6
5 Mirasaka IC Hiroshima Prefectural Route 61 44.0
(21-1)
1		 Miyoshi-Higashi JCT
Miyoshi-Higashi IC		 Chūgoku Expressway
Hiroshima Prefectural Route 434		 49.9
Through to Matsue Expressway

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