National Route 20 is a national highway in South Korea connects Sancheong to Pohang. It was established on 14 March 1981.
History
- March 14, 1981: National Route 20 Sicheon ~ Gyeongju Line newly established
- May 8, 1981: Geumgok-dong, Punggak-myeon, Cheongdo-gun ~ Geoncheon-ri, Geoncheon-eup, Wolseong-gun 79.7 km section upgraded to national highway opened
- May 12, 1981: Jungsan-ri, Sicheon-myeon, Sancheong-gun ~ Bang-ri, Seongsan-myeon, Changnyeong-gun 136.473 km section upgraded to national highway opened
- May 30, 1981: Road zone determined for newly established 186 km section according to the amendment of Presidential Decree No. 10247 General National Highway Route Designation Decree
- March 11, 1989: Old road sites in Seongsori, Bonchori, Youeo-myeon, Changnyeong-gun area abolished
- July 1, 1996: End point extended from 'Gyeongju-si, Gyeongsangbuk-do' to 'Pohang-si, Gyeongsangbuk-do'. Accordingly became 'Sancheong ~ Pohang Line'.
- May 23, 1998: Songgye Bridge (Gagye-ri, Saengbiryang-myeon, Sancheong-gun) 1.5 km section newly opened, existing 850m section abolished
- June 10, 1999: Chilgok Bypass Road (Dosan-ri ~ Sinpo-ri, Chilgok-myeon, Uiryeong-gun) 1 km section opened, existing section abolished
- July 19, 1999: Cheongdo Bridge (Beomgok-ri, Hwayang-eup ~ Wonjeong-ri, Cheongdo-eup, Cheongdo-gun) 3.22 km section opened, existing 7 km section abolished
- September 3, 1999: Daeui Bypass Road (Chusan-ri ~ Massang-ri, Daeui-myeon, Uiryeong-gun) 2.37 km section opened
- December 30, 1999: Saengbiryang Bypass Road (Oedo-ri ~ Dodong-ri, Saengbiryang-myeon, Sancheong-gun) 1.387 km section opened, existing 730m section abolished
- December 1999: Geoncheon Western Bypass Road 2.8 km section opened among Geoncheon ~ Pohang Road
- February 24, 2000: Cheonpo-ri, Geoncheon-eup, Gyeongju-si, Gyeongsangbuk-do ~ Jangheung-dong, Nam-gu, Pohang-si 32.9 km section designated as automobile-only road
- August 18, 2000: Burim Bypass Road (Seganri, Yugok-myeon ~ Gamam-ri, Burim-myeon, Uiryeong-gun) 4.29 km section opened, existing 2.6 km section abolished
- October 13, 2001: Danseong Bypass Road (Sawol-ri ~ Gangnu-ri, Danseong-myeon, Sancheong-gun) 4.637 km section opened, existing 4.2 km section abolished
- September 13, 2002: Sicheon Bypass Road (Won-ri ~ Sa-ri, Sicheon-myeon, Sancheong-gun) 3.56 km section expansion opening, existing Oegong-ri ~ Sa-ri, Sicheon-myeon, Sancheong-gun 3.7 km section abolished
- January 1, 2003: Punggak Bypass Road (Heukseok-ri, Punggak-myeon ~ Sindang-ri, Gangnam-myeon, Cheongdo-gun) 4.17 km section opened
- May 16, 2003: Cheonbuk ~ Pohang section among Geoncheon ~ Pohang Road (Sabang-ri, Angang-eup ~ Wangsin-ri, Gangdong-myeon, Gyeongju-si) 6.7 km section expansion opening
- December 4, 2003: Geumcheon Bypass Road (Donggok-ri, Geumcheon-myeon ~ Bangji-ri, Unmun-myeon, Cheongdo-gun) 4.4 km section opened
- September 24, 2004: Hwayang ~ Cheongdo Road (Seosang-ri ~ Beomgok-ri, Hwayang-eup, Cheongdo-gun) 2.52 km section expansion opening, existing 1 km section abolished
- December 29, 2004: With the opening of Gangdong ~ Pohang section 9.2 km, Geoncheon IC ~ Hyeongok 6.0 km section, Hyeongok ~ Cheonbuk 8.0 km section among Geoncheon ~ Pohang Road, entire Geoncheon ~ Pohang Road (Cheonpo-ri, Geoncheon-eup, Gyeongju-si ~ Jenae-ri, Daesong-myeon, Nam-gu, Pohang-si) 33.1 km section opened
- July 20, 2006: Geumgok-ri, Punggak-myeon, Cheongdo-gun 600m section alignment improvement opening, existing 420m section abolished
- June 19, 2008: Due to Geoncheon Western Bypass Road opening, existing Cheonpo-ri ~ Jojeon-ri, Geoncheon-eup, Gyeongju-si 1.3 km section abolished
- September 13, 2010: Chilgok ~ Garye Road (Sinpo-ri, Chilgok-myeon ~ Garye-ri, Garye-myeon, Uiryeong-gun) 4.33 km section expansion opening
- January 1, 2011: Due to Chilgok ~ Garye Road opening, existing Sinpo-ri, Chilgok-myeon ~ Garye-ri, Garye-myeon, Uiryeong-gun 3.0 km section abolished
- June 30, 2013: Namcheon ~ Cheongdo Road Section 1 and Gomtijae Tunnel (Buya-ri, Cheongdo-eup ~ Deoksan-ri, Maejeon-myeon, Cheongdo-gun) 4.88 km section expansion opening
- August 29, 2013: Due to Namcheon ~ Cheongdo Road Section 1 and Gomtijae Tunnel opening, existing Buya-ri, Cheongdo-eup ~ Deoksan-ri, Maejeon-myeon, Cheongdo-gun 4.76 km section abolished
- December 1, 2014: Daeui ~ Chilgok Road (Daeui Intersection, Massang-ri, Daeui-myeon ~ Chilgok Intersection, Oejo-ri, Chilgok-myeon, Uiryeong-gun) 8.256 km section expansion opening, existing Dasa-ri, Daeui-myeon ~ Sanbuk-ri, Chilgok-myeon, Uiryeong-gun 4.63 km section abolished
- December 19, 2014: Punggak ~ Hwayang Road (Sindang Intersection, Sindang-ri, Gangnam-myeon ~ Hapcheon Three-way Intersection, Seosan-ri, Hwayang-eup, Cheongdo-gun) 6.5 km section expansion opening, existing Sindang-ri ~ Chilseong-ri, Gangnam-myeon, Cheongdo-gun 4.2 km section abolished
- December 29, 2014: Saengbiryang ~ Ssangbaek Road (Dori ~ Gagye-ri, Saengbiryang-myeon, Sancheong-gun) 3.4 km section expansion opening, existing section abolished
- March 27, 2015: Starting point changed from Won-ri Intersection, Sicheon-myeon, Sancheong-gun to Jungsan-ri, Sicheon-myeon
- January 16, 2017: Boncho-ri, Daeji-myeon, Changnyeong-gun 440m section improvement opening, existing 500m section abolished
- July 31, 2017: Uiryeong ~ Jeonggok Road (Ungok-ri, Yongdeok-myeon ~ Jukjeon-ri, Jeonggok-myeon, Uiryeong-gun) 4.7 km section improvement opening, existing 3.9 km section abolished
- December 21, 2021: Jukjeon District dangerous road (Jukjeon-ri, Jeonggok-myeon, Uiryeong-gun) 200m section improvement opening, existing section abolished
Main stopovers
South Gyeongsang Province
North Gyeongsang Province
Major intersections
- (<span style="color: #00CCFF;">â </span>): Motorway
IS: Intersection, IC: Interchange
References