The is a national expressway in the Chūgoku region of Japan. It is owned and operated by West Nippon Expressway Company.
Overview The expressway is officially referred to as the Chūgoku-Ōdan Expressway Hiroshima Hamada Route. Together with the Chūgoku Expressway and Hiroshima Expressway, the expressway forms a link connecting the greater Hiroshima area with western Shimane Prefecture.
The first section of the expressway was opened to traffic in 1989 and the entire route was completed in 1991. The entire route is 2 lanes with the exception of the short (1.3 km) section between Hamada Junction and Hamada Interchange.
List of interchanges and features
IC - interchange, SIC - smart interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, TN - tunnel, BR - bridge
No.NameConnectionsDist. fromOriginBus StopNotesLocation(25)Chiyoda JCT Chūgoku Expressway0.0KitahiroshimaHiroshimaBSChiyoda-nishi BS2.1○-Kurasako Chain Base4.81Ōasa IC National Route 261Hiroshima Prefectural Route 512.6○PAKanbikizan PA16.5-Ōtsuka Chain Base18.7TNInokoyama TunnelLength - ŌnanShimane-Ichiki Chain Base22.3adjacent to Inokoyama Tunnel2Mizuho ICShimane Prefectural Route 5Shimane Prefectural Route 5024.2○-Chain Baseonly accessible to Chiyoda JCT-bound trafficHamadaBSShigetomi BS34.9○-Asahi Chain Base36.03Asahi ICShimane Prefectural Route 52Shimane Prefectural Route 32939.2○3-1Kanagi PA/SIC47.0○3-2Hamada JCT San'in Expressway55.3TBHamada TB56.04Hamada IC (Hamada Bypass)56.6
External links West Nippon Expressway Company