Ōita Expressway

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 Ōita 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 Ōita to Ōita Mera Interchanges was opened to traffic which made the Ōita Expressway from Tosu to Ōita fully accessible with no gaps.
• November 11, 1998, a section from Haki to Hita Interchanges which made Ōita Expressway with four lanes.
• November 27, 1999, the Ōita 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 Ōita Expressway from Tosu to Ōita with four lanes now being connected with no gaps.
• August 11, 2008, the Ōita Mitsuyoshi Interchange was fully accessible.
• August 5, 2018, a section from Hiji Junction to Ōita Mera Interchange is incorporated as part of the Higashikyushu Expressway.

  Interchanges

• IC - interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, TN - tunnel, BR - bridge, TB - toll gate
• Bus stops labeled "○" are currently in use; those marked "◆" are closed.

  Lanes

• 4-lane