National Route 4 (South Korea)

National Route 4 is a national highway in South Korea which connects the cities of Gunsan and Gyeongju. It opened on 31 August 1971.

History

1970s-2000s

August 31, 1971: The Gunsan-Gyeongju line became National Route No. 4 by the General National Route Designation Ordinance.
September 8, 1973: Due to alignment improvements, the 1.8 km section from Deukyun-ri, Gwangseok-myeon, Nonsan-gun to Galsan-ri, Seongdong-myeon, the 650m section from Namchon-ri, Hongsan-myeon, Buyeo-gun to Bukchon-ri were changed to 400m, the 4 km section from Gyuam-ri, Gyuam-myeon, Buyeo-gun to Gugyo-ri, Buyeo-eup were changed to 3 km, and the 160m section from Songnae-ri, Maseo-myeon, Seocheon-gun were changed to 140m.
March 23, 1988: The 1.57 km section from Gyesan-ri, Yeongdong-eup, Yeongdong-gun opened, discontinuing the existing 1.5 km section.
February 18, 1995: The 5 km section from Buyong-ri to Jugok-ri, Yeongdong-eup, Yeongdong-gun opened, discontinuing the existing 3.8 km section.
July 1, 1996: The terminus was changed from 'Gampo-eup, Wolseong-gun, Gyeongsangbuk-do' to 'Gampo-eup, Gyeongju-si, Gyeongsangbuk-do'.
January 12, 1998: A new 2.7 km section opened from Gyuam-ri, Gyuam-myeon, Buyeo-gun to Dongnam-ri, Buyeo-eup, and the existing 1.5 km section was abolished.
May 8, 1998: The 6 km section from Gwanho-ri, Yakmok-myeon, Chilgok-gun to Samcheong-ri, Waegwan-eup was expanded and opened, and the existing 4.68 km section was abolished.
April 1, 1999: The 9.72 km section from Godang-ri, Simcheon-myeon, Yeongdong-gun to Buyong-ri, Yeongdong-eup was expanded and opened, and the existing 2.4 km section was abolished.
July 23, 1999: The 1.32 km section between Jwahong-ri and Namchon-ri, Hongsan-myeon, Buyeo-gun, opened for expansion, and the existing 1.21 km section was abolished.
June 26, 2000: 2.8 km section of Guryong Bypass Road (Dongbang-ri, Guryong-myeon, Buyeo-gun ~ Jujeong-ri) opened, existing 1.75 km section closed

2000s-Present

September 21, 2001: The 8.3 km section from Wonbuk-ri, Seongdong-myeon, Nonsan City to Magupyeong-ri, Bujeok-myeon was expanded and opened. The existing 4.3 km section from Sandong-ri, Gwangjeok-myeon, Nonsan City to Magupyeong-ri, Bujeok-myeon was closed.
January 30, 2002: Yeongcheon ~ Temporary expansion and opening of the 7.4 km section of the Bukangan Road (Seokseom-ri, Geumho-eup, Yeongcheon-si ~ Jaksan-dong)
September 30, 2002: The 18.94 km section of the Waegwan IC ~ Daegu City Expressway (Samcheong-ri, Waegwan-eup, Chilgok-gun, Gyeongsangbuk-do ~ Taejeon-dong, Buk-gu, Daegu Metropolitan City) opened for expansion.
October 5, 2002: The 1.21 km section of Masan-ri, Hwanggan-myeon, Yeongdong-gun, Chungcheongbuk-do Opening
November 1, 2002: The existing 4.55 km section from Wonbuk-ri, Seongdong-myeon, Nonsan City to Sandong-ri, Gwangseok-myeon was closed.
January 1, 2004: The 3.0 km section of Gwanho Bridge at Gwanho Intersection (Gwanho-ri, Yakmok-myeon, Chilgok-gun, to Murim-ri) was closed. Opening
April 15, 2004: The 11.3 km section of the Yeongcheon-Bukang Road (Seoksim-ri, Geumho-eup, Yeongcheon-si, to Banjeong-ri, Bukang-myeon) was expanded and opened.
December 28, 2004: The entire 30.5 km section of the Yeongcheon-Bukang Road and the Bukang-Gyeongju Road (Seokseom-ri, Geumho-eup, Yeongcheon-si, to Gwangmyeong-dong, Gyeongju-si) was expanded and opened. The existing 36.3 km section was abolished.
December 22, 2005: The 6.4 km section from Gwangpyeong-ri, Hwanggan-myeon, Yeongdong-gun, Chungcheongbuk-do to Chupungnyeong-ri, Chupungnyeong-myeon opened, and the existing 5.48 km section was abolished. A 7.32 km section of Chupungnyeong ~ Gimcheon road (Gwangcheon-ri ~ Taehwa-ri, Bongsan-myeon, Gimcheon-si) expanded and opened, and the existing 6.5 km section was abolished.
January 3, 2007: Opening of the 2.2 km section from Yeonhwa Intersection, Geumam-dong, Gyeryong-si, Chungcheongnam-do to Bangdong, Yuseong-gu, Daejeon, expanded and the existing section was abolished.
November 30, 2007: Partial opening of the 3.5 km section of the Nammyeon ~ Yakmokgan Road (Busangri, Nammyeon, Gimcheon-si ~ Bosonri, Buksam-eup, Chilgok-gun) to connect with the Nam Gimcheon IC
January 3, 2008: The starting point was extended from Gunsan-si, Jeollabuk-do to Okdo-myeon, Gunsan-si, Jeollabuk-do.
December 17, 2008: The entire 19.22 km section of the Gimcheon-Yakmok Road (Deokgok-dong, Gimcheon-si - Bokseong-ri, Yakmok-myeon, Chilgok-gun) was extended. Opening
December 31, 2008: The 9.49 km section of the Guryong-Buyeo Road (Taeyang-ri, Guryong-myeon, Buyeo-gun, to Dongnam-ri, Buyeo-eup) was expanded and opened. The existing 6.7 km section from Jujeong-ri, Guryong-myeon, Buyeo-gun, to Dongnam-ri, Buyeo-eup, was discontinued.
January 7, 2009: The Gimcheon-Yakmok Road opened, replacing the existing 14.1 km section from Wolgok-ri, Nongso-myeon, Gimcheon-si, to Seungori, Buk-sam-eup, Chilgok-gun. Abolition
July 17, 2009: The 500m section of the Seocheon-eup Gunsuri ~ Samsanri section in Seocheon-gun was renovated and opened, and the existing 320m section was abolished.
December 31, 2009: Buyeo ~ Nonsan Road (Buyeo-eup Gunsu-ri, Buyeo-gun ~ Nonsan-si Seongdong-myeon Wonbuk-ri) 13.5 km section expanded and opened, existing 16.2 km section abolished
December 22, 2011: The 11.88 km section from Bokdae-ri, Pangyo-myeon, Seocheon-gun to Dongbang-ri, Guryong-myeon, Buyeo-gun opened for expansion.
January 8, 2014: The 1.34 km section of the Ibaek District Hazardous Road (Ibaek-ri, Gunbuk-myeon, Okcheon-gun) was improved. Opening, abolition of the existing 800m section
July 31, 2014: The 1.2 km section of Madae-ri ~ Bokdae-ri, Pangyo-myeon, Seocheon-gun, opened for expansion, up from the existing 1.1 km section.
December 30, 2014: Opening of the 24.9 km section of the Gyeongju-Gampo road (Bodeok-dong, Gyeongju-si - Jeonchon-ri, Gampo-eup), the existing 22.33 km section abolished.
December 31, 2014: The 8.18 km section of the Seocheon Interchange ~ Pangyo Road (Oseok-ri, Seocheon-eup, Seocheon-gun, Chungcheongnam-do ~ Madae-ri, Pangyo-myeon) was expanded and opened, and the existing 7.75 km section was abolished.
July 2016 5th: New construction of 4.39 km section of Gogunsan Islands connecting road sections 1 and 2 (Sinsi-do-ri ~ Munyeodo-ri, Okdo-myeon, Gunsan-si) including Gogunsan Bridge opened
October 21, 2016: Yeongdong ~ Chupungnyeong Road Section 2 (Yeongdong-eup, Gari, Yeongdong-gun ~ Hwanggan-myeon, Gwangpyeong-ri) 9.54 km section opened
March 15, 2017: Yeongdong ~ Chupungnyeong Road Section 1 (Yeongdong-eup, Yeongdong-gun) opened Buyong-ri ~ Gari) 8.9 km section expanded and opened, existing 9.0 km section abolished
December 28, 2017: Newly opened 4.38 km section of the 3rd section of the Gogunsan Islands connecting road (Muneodo-ri ~ Jangjado-ri, Okdo-myeon, Gunsan-si)
October 7, 2018: Due to the collapse of a 150m section of slope near the Janghang intersection on Tohamsan-ro in Yangbuk-myeon, Gyeongju-si, the 2.4 km section from Janghang intersection to Andong intersection was completely closed, Detour traffic using the existing 2.9 km section of the national road.
December 27, 2018: Dongbaek Bridge (Haemang-dong, Gunsan-si, Jeollabuk-do - Seongju-ri, Janghang-eup, Seocheon-gun, Chungcheongnam-do) 3.185 km section opened
June 22, 2021: Starting point changed to Okdo-myeon, Gunsan-si, Jeollabuk-do Changed from Gwanri-ri to Baekryeon-ri, Haseo-myeon, Buan-gun, Jeollabuk-do. Accordingly, 'Gunsan ~ Gyeongju Line' was changed to 'Buan ~ Gyeongju Line'.
December 29, 2022: Opening of the 12.7 km section of the first phase of the Saemangeum North-South Road.
July 23, 2023: New 14.4 km section of the second phase of the Saemangeum North-South Road opens.
December 19, 2023: New 6.95 km section of the Gimcheon National Road Bypass (Okryul-Daeryong) opens., 10.1 km section of the existing National Route 4 Abolition