History

• February 5, 1987, the Tosu Junction to Asakura Interchange was opened.
• July 20, 1989, a section from Yufuin to Beppu Interchanges was opened to traffic.
• March 10, 1990, a section from Asakura to Hita Interchanges was opened to traffic.
• December 3, 1992, a section from Beppu to Oita Interchanges was opened to traffic.
• December 15, 1994, a section from Hiji Junction to Hayami Interchange was opened to traffic.
• March 10, 1995, a section from Hita to Kusu Interchanges was opened to traffic.
• March 28, 1996, a section from Kusu to Yufuin Interchanges was opened to traffic.
• November 26, 1996, a section from Oita to Oita Mera Interchanges was opened to traffic which made the Oita Expressway from Tosu to Oita fully accessible with no gaps.
• November 11, 1998, a section from Haki to Hita Interchanges which made Oita Expressway with four lanes.
• November 27, 1999, the Oita Mera Interchange to the east was opened to traffic.
• March 21, 2000, a section from Hita to Kusu Interchanges which made with four lanes.
• March 30, 2002, a section from Hayami Interchange to the east was opened with other freeway.
• May 25, 2002, a section from Yufuin Interchange to Hiji Junction which made with four lanes.
• August 30, 2004, a section from Mizuwake Parking Area to Yufuin Interchange which made with four lanes.
• March 19, 2005, a section from Kusu Interchange to Mizuwake Parking Area which made Oita Expressway from Tosu to Oita with four lanes now being connected with no gaps.
• August 11, 2008, the Oita Mitsuyoshi Interchange was fully accessible.

Interchanges

• 9 Tosu
  Tosu, Saga
  is a city located in the east part of Saga Prefecture on the island of Kyūshū, Japan.-Overview:Tosu is one of the major transportation hubs of Kyūshū. Its main train station is Tosu Station which connects the Nagasaki Main Line and the Kagoshima Main Line. There is also a junction connecting the...
  
   Junction with the Kyushu Expressway
  Kyushu Expressway
  ' is one of the Expressways of Japan from Kitakyūshū to west of Kagoshima linking with the Higashi Kyushu Expressway and the Ibusuki Skyline. It runs through the prefectures of Fukuoka, the eastern half of the Saga, Kumamoto, Miyazaki and the Kagoshima prefectures. The freeway runs entirely on...
  
   and with the Nagasaki Expressway
  Nagasaki Expressway
  ' is one of the Expressways of Japan from Tosu to Nagasaki. It runs through the prefecture of Saga, and the southern half of the Nagasaki prefecture...
  
  
• Inoue Parking Area (Only accessible for Tosu)
• 1 Chikugo Ogori
  Ogori, Fukuoka
  is a city located in Fukuoka, Japan.As of 2003, the city has an estimated population of 56,821 and the density of 1,248.81 persons per km². The total area is 45.50 km².The city was founded on April 1, 1972....
  
   Interchange
• Tachiarai
  Tachiarai, Fukuoka
  is a town located in Mii District, Fukuoka, Japan.As of 2003, it has an estimated population of 15,323 and a density of 671.18 persons per km². The total area is 22.83 km².Tachiarai is divided into three neighborhoods: Ozeki, Hongō and Kikuchi...
  
   Parking Area (Only accessible for Oita)
• 2 Amagi
  Amagi, Fukuoka
  Amagi was a city in Japan located in Fukuoka Prefecture that merged along with the city of Haki into their mutual neighbor Asakura on March 20, 2006....
  
   Interchange
• 3 Asakura
  Asakura, Fukuoka
  is a city located in south central Fukuoka Prefecture, Japan. The city was created on March 20, 2006 when the old town of Asakura, from Asakura District, absorbed the former city of Amagi, and the town of Haki, also from Asakura District, to form the new city of Asakura.-Geography:Asakura is...
  
   Interchange
• Yamada Service Area
• 4 Haki
  Haki, Fukuoka
  Haki was a town located in Asakura District, Fukuoka, Japan.As of 2003, the town had an estimated population of 8,372 and a density of 186.13 persons per km². The total area was 44.98 km²....
  
   Interchange with Route 386
  Route 386 (Japan)
  National Route 386 is a national highway of Japan connecting Hita, Ōita and Chikushino, Fukuoka in Japan, with a total length of 46.6 km ....
  
  
• Hagio Parking Area
• 5 Hita
  Hita, Oita
  is a city in Ōita Prefecture, Japan, that was founded on December 11, 1940. It is an agricultural and industrial centre that primarily produces lumber, furniture, and pottery...
  
   Interchange with Route 212
  Route 212 (Japan)
  National Route 212 is a national highway of Japan connecting Nakatsu, Ōita and Aso, Kumamoto in Japan, with a total length of 106.8 km ....
  
  
• 6 Amagase
  Amagase, Oita
  was a town located in Hita District, Ōita, Japan.On March 22, 2005 Amagase, along with the town of Ōyama, and the villages of Kamitsue, Maetsue and Nakatsue, all from Hita District, was merged into the expanded city of Hita....
  
   Takatsuka Interchange
• 7 Kusu
  Kusu, Oita
  is a town located in Kusu District, Ōita, Japan.As of 2009, the town has an estimated population of 17,945. The total area is 286.44 km².-External links:* *...
  
   Interchange with Route 387
  Route 387 (Japan)
  National Route 387 is a national highway of Japan connecting Usa, Ōita and Kumamoto, Kumamoto in Japan, with a total length of 132.6 km ....
  
  
• Kusu Service Area
• 8 Kokonoe
  Kokonoe, Oita
  is a small town located in Kusu District, Ōita, Japan. It promotes its nine onsen, which are occasionally closed due to flooding; it is also the summer headquarters of Labo Camp Kujū, part of the LABO language program....
  
   Interchange
• Mizuwake Parking Area
• 9 Yufuin
  Yufu, Oita
  is a city located in Ōita Prefecture, Japan.The city was founded on October 1, 2005 as a result of the merger between the towns of Hasama, Shōnai and Yufuin, all from Ōita District....
  
   Interchange with Route 210
  Route 210 (Japan)
  National Route 210 is a national highway of Japan connecting Kurume, Fukuoka and Ōita, Ōita in Japan, with a total length of 136.2 km ....
  
  
• Yufu Parking Area
• 10 Hiji
  Hiji, Oita
  is a town located in Hayami District, Ōita, Japan.As of 2003, the town has an estimated population of 26,872 and the density of 366.95 persons per km². The total area is 73.23 km².The town has a trappist monastery....
  
   Junction with Hayami Route
• 11 Beppu
  Beppu, Oita
  is a city located in Ōita Prefecture on the island of Kyushu, Japan, at the west end of Beppu Bay. As of January 1, 2011, the city has an official population of 125,664 and a total area of 125.13 km², with a population density of 977 persons per km²....
  
   Interchange
• 12 Oita
  Oita, Oita
  is the capital city of Ōita Prefecture located on the island of Kyushu, Japan.- Demographics and geography :Ōita is the most populous city in Ōita Prefecture...
  
   Interchange
• 13 Oita Mitsuyoshi Interchange with Route 210
• 14 Oita Mera Interchange with the Higashi Kyushu Expressway, Mera Toll Road, a superhighway and Route 10
  Route 10 (Japan)
  thumb|240px|right|Route 10, Oita, Oitathumb|240px|right|Route 10, Fukuoka, KandaNational Route 10 is a Japanese highway on the island of Kyūshū. It originates at the intersection with Route 2 in Kitakyushu, Fukuoka and passes through the prefectural capitals of Ōita and Miyazaki, terminating at the...
  
  

Hayami Route

• 10 Hiji Junction with Main Route
• 1 Hayami Interchange with Beppu Usa Toll Road, a superhighway