History

• March 4, 1976, the Ebino Junction with the Kyushu Expressway to Takaharu Interchange was opened.
• March 17, 1981, a section from Takaharu to Miyakonojō Interchanges was opened to traffic.
• October 29, 1981, a section from Miyakonojō to Miyazaki Interchanges was opened to traffic which made the Miyazaki Expressway from Ebino to Miyazaki fully accessible with no gaps.
• March 25, 2000, the Kiyotake Junction to the east was opened to traffic.
• October 1, 2005, Following privatisation of JH
  Japan Highway Public Corporation
  , or JH, was a public company established after World War II to construct and manage highway networks in Japan, founded in 1956.On October 1, 2005, JH was divided into three private enterprises, East Nippon Expressway Co., Ltd. , Central Nippon Expressway Co., Ltd. , and West Nippon Expressway...
  
   it came under the control of NEXCO West Japan
  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....
  
  .

Interchanges

• 21 Ebino
  Ebino, Miyazaki
  is a city located in Miyazaki Prefecture, Japan. Ebino shares borders with Kagoshima Prefecture, Kumamoto Prefecture and Kobayashi, Miyazaki.-History:The town of Ebino was created through the administrative merging of the towns of Masaki, Kakutō, and Īno in 1966...
  
   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...
  
  
• 1 Kobayashi
  Kobayashi, Miyazaki
  is a city located in Miyazaki, Japan.As of May 1, 2011, the city has an estimated population of 47,328, with a household number of 19,924 and a density of 80.45 persons per km²...
  
   Interchange
• Kirishima Service Area
• 2 Takaharu
  Takaharu, Miyazaki
  is a town located in Nishimorokata District, Miyazaki, Japan.As of September 1, 2011, the town has an estimated population of 9,887 and the density of 116 persons per km². The total area is 85.38 km².-External links:*...
  
   Interchange with Route 221
  Route 221 (Japan)
  National Route 221 is a national highway of Japan connecting Hitoyoshi, Kumamoto and Miyakonojō, Miyazaki in Japan, with a total length of 74.6 km ....
  
  
• Hyūga Takasaki Parking Area
• 3 Miyakonojō
  Miyakonojo, Miyazaki
  is a city located in Miyazaki Prefecture, Japan.The city was founded on April 1, 1924. On January 1, 2006 the towns of Takajō, Takazaki, Yamada and Yamanokuchi merged into the city. As of 2008, the city has an estimated population of 169,384 and a population density of 259 per km²...
  
   Interchange with 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...
  
  
• Yamanokuchi
  Yamanokuchi, Miyazaki
  was a town located in Kitamorokata District, Miyazaki, Japan.On January 1, 2006 Yamanokuchi, along with the towns of Takajō, Takazaki and Yamada, all from Kitamorokata District, was merged into the expanded city of Miyakonojō and no longer exists as an independent municipality.As of 2003, the town...
  
   Service Area
• 4 Tano
  Tano, Miyazaki
  was a town located in Miyazaki District, Miyazaki, Japan.On January 1, 2006 Tano, along with the town of Sadowara, also from Miyazaki District, and the town of Takaoka, from Higashimorokata District, was merged into the expanded city of Miyazaki and no longer exists as an independent...
  
   Interchange
• 4-1 Kiyotake
  Kiyotake, Miyazaki
  was a town located in Miyazaki District, Miyazaki, Japan.As of 2003, the town had an estimated population of 28,937 and the density of 605.25 persons per km². The total area was 47.81 km²....
  
   Junction with Higashi Kyushu Expressway
• Kyotake Parking Area
• 5 Miyazaki
  Miyazaki, Miyazaki
  is the capital city of Miyazaki Prefecture on the island of Kyūshū in Japan. Located on the coast and perforated by several rivers, Miyazaki City enjoys scenic views of both ocean and nearby, verdant mountains...
  
   Interchange with Route 220
  Route 220 (Japan)
  National Route 220 is a national highway of Japan connecting Miyazaki, Miyazaki and Kirishima, Kagoshima in Japan, with a total length of 186.1 km ....
  
   and Hitotsuba Toll Road, a superhighway