Okayama Expressway
Expressway in Okayama prefecture, Japan
 | |
|---|---|
 岡山自動車道 | |
| Route information | |
| Length | 43.9 km (27.3 mi) |
| Existed | 1991–present |
| Major junctions | |
| From | Okayama Junction in Kita-ku, Okayama Sanyō Expressway |
| To | Hokubō Junction in Maniwa, Okayama Chūgoku Expressway |
| Location | |
| Country | Japan |
| Major cities | Takahashi |
| Highway system | |
| |
The Okayama Expressway (岡山自動車道, Okayama Jidōsha-dō) is a national expressway in Okayama Prefecture, Japan. It is owned and operated by West Nippon Expressway Company.
Naming
The expressway is officially referred to as the Chūgoku-Ōdan Expressway Okayama Yonago Route. The Chūgoku-Ōdan Expressway Okayama Yonago Route is the official designation for the Sanyō Expressway between Okayama Interchange and Okayama Junction, the Okayama Expressway between Okayama Junction and Hokubō Junction, the Chūgoku Expressway between Hokubō Junction and Ochiai Junction, and the Yonago Expressway between Ochiai Junction and Yonago Interchange (concurrent with the Chūgoku-Ōdan Expressway Okayama Yonago Route).
Overview
The first section of the expressway was opened in 1991. The final section of the expressway (41.2 km between Okayama-Sōja Interchange and Hokubō Junction) was opened on March 15, 1997. The route originates from its junction with the Sanyō Expressway and extends northward. At its northern terminus it connects to the Chūgoku Expressway.
The expressway is 4 lanes from Okayama Junction to Kayō Interchange and the remainder is 2 lanes. The speed limit is 80 km/h on 4-laned sections and 70 km/h on 2-laned sections.
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. | Name | Connections | Dist. from Origin | Bus Stop | Notes | Location (all in Okayama) | |
|---|---|---|---|---|---|---|---|
| (15) | Okayama JCT | Sanyō Expressway | 0.0 | Kita-ku, Okayama | |||
| 1 | Okayama-Sōja IC |  National Route 180 National Route 429 | 2.7 | ||||
| PA | Sōja PA | 7.0 | Sōja | ||||
| TN | Tōzaka Tunnel | northbound: 1,450 m (4,760 ft) southbound: 1,460 m (4,790 ft) | |||||
| BR | Minobe Bridge | Length - 703 m | |||||
| TN | Makidani Tunnel | northbound: 1,170 m (3,840 ft) southbound: 1,070 m (3,510 ft) | |||||
| 2 | Kayō IC |  National Route 484 | 22.6 | ○ | Kibichūō | ||
| SA | Takahashi SA | 30.9 31.4 | For Hokubō for Okayama | Takahashi | |||
| 3 | Ukan IC | Okayama Prefectural Road 49 | 35.5 | ○ | |||
| TN | Ukan Tunnel | Length - 1,529 m (5,016 ft) | |||||
| Maniwa | |||||||
| BS | Hokubō Mizuta BS | 43.1 | ○ | ||||
| (17) | Hokubō JCT | Chūgoku Expressway | 43.9 | ||||
External links
- (in Japanese) West Nippon Expressway Company
Wikimedia Commons has media related to Okayama Expressway.
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West Nippon Expressway Company- E1 Meishin
- E1A Shin-Meishin
- E2 San'yō
- E2A Chūgoku
- E2A Kammon Bridge
- E3 Kyushu
- E9 San-in
- E10/E78 Higashikyushu
- E10 Miyazaki
- E11 Takamatsu
- E11/E56 Matsuyama
- E11/E32 Tokushima
- E25 Nishi-Meihan
- E26 Kinki
- E26/E42 Hanwa
- E27 Maizuru-Wakasa
- E29 Harima
- E29 Tottori
- E32/E56 Kōchi
- E34 Nagasaki
- E34 Ōita
- E54 Matsue
- E58 Okinawa
- E71 Kansai-Kūkō
- E73 Okayama
- E73 Yonago
- E74 Hiroshima
- E74 Hamada
- E77 Kyushu Chūō
- E2 Hiroshima-Iwakuni Road
- E3A Minamikyushu
- E9 Kyoto-Jūkan
- E10 Usa-Beppu Road
- E10 Nobeoka-Minami Road
- E24 Keinawa
- E31 Hiroshima-Kure Road
- E35 Nishi-Kyūshū
- E42 Yuasa Gobō Road
- E71 Sky Gate Bridge R
- E76 Imabari-Komatsu
- E78 Hayato Road
- E88 Keiji Bypass
- E89 Daini-Keihan Road
- E90 Sakai Senboku Road
- E91 Minami-Hanna Road
- E92 Daini Hanna
- E93 Daini-Shimmei
- E94 Kitasen Road
- E96 Nagasaki Bypass
- E97 Hiji Bypass
- Kanmon Roadway Tunnel
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