National_Route_21_(South_Korea)

21
National Route 21
21 National Route 21
국도 제21호선
Route information
Length	430.9 km (267.7 mi)
Existed	31 August 1971–present
Major junctions
South end	Namwon, North Jeolla Province
North end	Icheon, Gyeonggi Province
Location
Country	South Korea
Highway system
	Highway systems of South Korea; Expressways; National; Local;

National Route 21 (South Korea)

Road in South Korea

National Route 21 is a national highway in South Korea connects Namwon to Icheon. It established on 31 August 1971.^[1]

Quick Facts Route information, Length ...

Major intersections

(■): Motorway

IS: Intersection, IC: Interchange

North Jeolla Province

More information Name, Hangul name ...

Name ^[2]	Hangul name	Connection	Location		Note
Daegang-myeon Office	대강면사무소		Namwon City	Daegang-myeon	Terminus National Route 13 overlap
No name	(이름 없음)	Prefectural Route 745 (Geumtan-ro)			National Route 13 overlap
Pyeongchon IS	평촌삼거리	Prefectural Route 730 (Yudeung-ro)			National Route 13 overlap
Suhong IS	수홍삼거리	National Route 24 (Bihong-ro)			National Route 13, National Route 24 overlap
Goejeong IS	괴정삼거리	National Route 24 (Damsun-ro)	Sunchang County	Jeokseong-myeon	National Route 13, National Route 24 overlap
Seoho Bridge (Seohyo Bridge)	서호다리(서효교)			Jeokseong-myeon	National Route 13 overlap
Hyeonpo IS	현포삼거리	Donggye-ro		Donggye-myeon	National Route 13 overlap
Yeonsan IS	연산사거리	National Route 13 (Chunghyo-ro) Donggye 1-gil			National Route 13 overlap Prefectural Route 717 overlap
Donggye High School	동계고등학교				Prefectural Route 717 overlap
Gwanjeon IS	관전삼거리	Prefectural Route 717 (Gangdong-ro)			Prefectural Route 717 overlap
No name	(이름 없음)	Ganggyeong-gil		Jeokseong-myeon
Naewol IS	내월삼거리	Jeokseong-ro
Unrim IS	운림삼거리	Inseong-ro
No name	(이름 없음)	Sesim-ro		Ingye-myeon
No name	(이름 없음)	Injung-ro
Ingye Elementary School	인계초등학교
No name No name	(이름 없음) (이름 없음)	Hogye-gil Seonam-ro
Ingye IS	인계교차로	National Route 27 (Moak-ro)
Ingye IS (Ingye-myeon Office)	인계삼거리 (인계면사무소)	Indeok-ro
No name	(이름 없음)	Indeok-ro
No name No name	(이름 없음) (이름 없음)	Gusan-ro Hoeryong-gil		Gurim-myeon
Dungi IS	둔기삼거리	Prefectural Route 729 (Gwangam-ro)			Prefectural Route 729 overlap
No name	(이름 없음)	Seonggok-ro
Gurim Bridge IS	구림교삼거리	Prefectural Route 729 (Yeonsan 2-gil)
Gurim IS	구림삼거리	Gurim-ro
Woljeong IS	월정삼거리	Prefectural Route 55 Prefectural Route 792 (Gangcheon-ro)			Prefectural Route 55, 792 overlap
Ojeongja IS	오정자삼거리	Prefectural Route 792 (Gangcheon-ro)			Prefectural Route 55, 792 overlap
Unbuk IS	운북삼거리	Jangam-gil			Prefectural Route 55 overlap
No name	(이름 없음)	Unhang-gil
Bamjae	밤재
Bamjae				Ssangchi-myeon
Ssangchi IS	쌍치사거리	Prefectural Route 55 Prefectural Route 715 (Cheongjeong-ro) Ssanggye-ro
Ssangchi Middle School	쌍치중학교
Ssanggalmae IS	쌍갈매삼거리	National Route 29 (Sunjeong-ro)			National Route 29 overlap
Oksan IS	옥산삼거리	Guksabong-ro
Hunmonhjae Entrance	훈몽재입구
Sinseong IS	신성교차로	Prefectural Route 49 (Baekbang-ro)			National Route 29 overlap Prefectural Route 49 overlap
Gaeunchi	개운치		Jeongeup City	Naejangsang-dong
Bujeonjae IS	부전제삼거리	Prefectural Route 49 (Chilbosan-ro)
Bujeon IS	부전사거리	Naejangsan-ro			National Route 29 overlap
Naejangsang-dong Community Center	내장상동주민센터				National Route 29 overlap
Songsan IS	송산교차로	National Route 1 (Jeongeup-daero) National Route 29 (Naejangsan-ro)			National Route 1 overlap National Route 29 overlap
Yongho Tunnel	용호터널			Jangmyeong-dong	National Route 1 overlap Right tunnel: Approximately 285m Left tunnel: Approximately 250m
Yongho IS	용호교차로	Prefectural Route 708 (Jeongeupbuk-ro)		Jangmyeong-dong	National Route 1 overlap Prefectural Route 708 overlap
Bakdong IS	박동교차로	Seobusaneopdo-ro		Buk-myeon
Jeongeup Bridge	정읍대교
Hwahae IS	화해교차로	Prefectural Route 708 (Chilbuk-ro)
Usan IS	우산교차로	Jeongeupbuk-ro		Jeongu-myeon	National Route 1 overlap
Jigyeong IS	지경교차로	Taego-ro		Jeongu-myeon	National Route 1 overlap
Taein IS	태인교차로	Seokji-ro		Taein-myeon	National Route 1 overlap Connected with Taein IC
Wangnim IS	왕림교차로	National Route 30			National Route 1 overlap
Oseong IS	오성교차로	Jeongeupbuk-ro
Nokdong IS	녹동교차로	Jeongeupbuk-ro		Ongdong-myeon
Yongho IS	용호교차로	Jeongeupbuk-ro
Solteun Tunnel	솔튼터널				National Route 1 overlap Right tunnel: Approximately 780m Left tunnel: Approximately 700m
Tongseok IS	통석교차로	Geumpyeong-ro Jeongeupbuk-ro		Gamgok-myeon	National Route 1 overlap
Wonpyeong IS	원평 교차로	Prefectural Route 714 Prefectural Route 736 (Bonghwang-ro)	Gimje City	Geumsan-myeon
Naksu IS	낙수교차로	Prefectural Route 712 (Bongnam-ro) (Wonpyeong-ro)
Bongeun IS	봉은교차로	Guseong-gil
Yongbok IS	용복교차로	Yangsi-ro		Geumgu-myeon
Geumgu IS	금구사거리	Daesong-ro
Geumgu IC	금구 나들목	Prefectural Route 714 (Pungyo-ro)			National Route 1 overlap Connected with Gimje IC
Woljeon IS	월전삼거리	Bongdu-ro			National Route 1 overlap
Daeya IS	대야삼거리	Prefectural Route 713 (Iseonam-ro)			National Route 1 overlap
Ssuk Pass IS	쑥고개 교차로	National Route 1 National Route 27 (Honam-ro) Ssukgogae-ro	Jeonju City	Wansan District	National Route 1 overlap National Route 27 overlap
Jungin IS	중인 교차로	Prefectural Route 712 (Urim-ro)			National Route 27 overlap
Gui IS	구이 교차로	National Route 27 (Moak-ro)			National Route 27 overlap
Taebong IS	태봉 교차로	Pyeongchon-ro	Wanju County	Gui-myeon
Gwanggok Tunnel	광곡터널				Approximately 380m
Godeok Tunnel	고덕터널				Right tunnel: Approximately 920m Left tunnel: Approximately 870m
Sanggwan IS	상관 교차로	National Route 17 (Chunhyang-ro)		Sanggwan-myeon	National Route 17 overlap
No name	(이름 없음)	Sinri-ro
No name	(이름 없음)	Chunhyang-ro
Ajung Station Square	아중역광장	Ajung-ro	Jeonju City	Deokjin District
Andeokwon IS (Andeokwon Underpass)	안덕원사거리 (안덕원지하차도)	National Route 26 (Andeokwon-ro)			National Route 17, National Route 26 overlap
Station Square (Jeonju Station)	역전광장 (전주역)	Baekje-daero
Hoseong-dong Community Center	호성동주민센터
Vehicle Registration Office	차량등록사업소앞	National Route 17 (Wanju-ro)
Songcheon Station IS	송천역네거리	Songcheonjungang-ro			National Route 26 overlap
Jeonju City Agricultural and Marine Products Market	전주시농수산물시장
Baldan-ri IS	발단리네거리	Sicheon-ro Jeonmi-ro
Jeonjucheon Bridge	전주천교
Dongsan Station IS	동산역네거리	Pyeonun-ro
Dongsan Square IS	동산광장교차로	Banwol-ro Samnye-ro Hyeoksin-ro
Jeonju IC (Banwol IS)	전주 나들목 (반월교차로)	Honam Expressway
Jochon IS	조촌교차로	Girin-daero Ongoeul-ro Jjokgureum-ro
Daeheung IS	대흥 교차로	National Route 1 National Route 27 (Honam-ro) National Route 26 (Beonyeong-ro)			National Route 26 overlap
Dodo IS	도도 교차로	Saemangeumbuk-ro
Hakdong IS	학동 교차로	National Route 26 (Beonyeong-ro)	Gimje City	Baekgu-myeon
Gongdeok IS	공덕 교차로	National Route 23 (Hagong-ro)		Gongdeok-myeon
Gongdeok Bridge	공덕대교			Gongdeok-myeon
East Gunsan IC (Daeya IS)	동군산 나들목 (대야교차로)	Seohaean Expressway National Route 29 (Geumman-ro)	Gunsan City	Daeya-myeon	National Route 29 overlap
Gaejeong IS	개정 교차로	National Route 29 (Geumgang-ro)		Gaejeong-myeon	National Route 29 overlap
Oksan IS	옥산 교차로	Prefectural Route 709 (Oksan-ro)		Oksan-myeon
Dangbuk IS	당북 교차로	Wolmyeong-ro		Oksan-myeon
Kunsan National University IS	군산대 교차로	Daehak-ro		Naun-dong
Airport IS	공항 교차로	National Route 26 (Gonghang-ro)		Miseong-dong
Oknyeo IS	옥녀 교차로	Oknyeo-ro
Maeripjang IS	매립장삼거리
Naecho IS	내초사거리	Naecho-ro
Expo IS	엑스포사거리	National Route 4 National Route 77 (Saemangeumbuk-ro)			National Route 4, National Route 77 overlap
Electrical Substation IS	변전소사거리	Dongjangsan-ro Oehang-ro		Soryong-dong
Daeu IS	대우삼거리	Jangsan-ro
Passenger Terminal IS	여객터미널삼거리	Imhae-ro
Gongdan IS	공단삼거리	Gongdandae-ro
Oego IS	외고삼거리	National Route 26 (Gonghang-ro)			National Route 4, National Route 26, National Route 77 overlap
Wolmyeong Tunnel IS	월명터널삼거리	Wolmyeong-ro		Haesin-dong
Doseonjang IS	도선장사거리	Gunsanchang-gil		Wolmyeong-dong	National Route 26 overlap
Naehang IS	내항사거리	National Route 26 National Route 27 (Daehak-ro)		Wolmyeong-dong	National Route 26, National Route 27 overlap
Gyeonguhoeap	경우회앞	Jukseong-ro		Jungang-dong	National Route 27 overlap
Gyeongam IS	경암사거리	National Route 26 (Haemang-ro)		Gyeongam-dong
Jinpo IS	진포사거리	Jinpo-ro
Yeonan IS	연안사거리	Jochon-ro
Guam Bridge IS	구암교삼거리	Guam 3.1-ro		Guam-dong
Jamdu IS	잠두삼거리	Baekreung-ro
Guam IS	구암삼거리	Guam 3.1-ro
Hodeok IS	호덕교차로	National Route 27 (Guam-ro) National Route 29 (Geumgang-ro)		Gaejeong-myeon	National Route 27 overlap National Route 29 overlap
Gunsan Station IS	군산역교차로	Anjeong-gil Haeryeong 1-gil		Guam-dong	National Route 29 overlap Continuation into South Chungcheong Province
Haguduk IS (Seongsan Overpass)	하구둑사거리 (성산육교)	Prefectural Route 709 (Cheolsae-ro) Gangbyeon-ro		Seongsan-myeon
Geumgang Riverwall	금강하구둑			Seongsan-myeon

South Chungcheong Province

More information Name, Hangul name ...

Name ^[3]	Hangul name	Connection	Location		Note
Geumgang Riverwall	금강하구둑		Seocheon County	Maseo-myeon	National Route 29 overlap North Jeolla Province - South Chungcheong Province border line
Haguduk IS	하구둑사거리	National Route 29 Prefectural Route 68 (Jangsan-ro)
Songnae IS	송내 교차로	National Route 4 National Route 77 (Daebaekje-ro)			National Route 4, National Route 77 overlap
Janghang Station IS	장항역사거리	Janghang Station-gil Janghangsandan-ro
Deokam IS	덕암교차로	Okdo-ro
Samsan IS	삼산교차로	Samsan-gil		Seocheon-eup
Gunsa 2 IS	군사2교차로	Jangseo-ro
Gunsa IS	군사교차로	Chungjeol-ro
No name	(이름 없음)	Sagok-ro
Oseok IS	오석사거리	National Route 4 (Daebaekje-ro)
Dangjeong IS	당정사거리	Prefectural Route 617 (Jangcheol-ro) Chungseo-ro 302beon-gil		Jongcheon-myeon	National Route 77 overlap Prefectural Route 617 overlap
Jongcheon IS	종천삼거리	Prefectural Route 617 (Jongpan-ro)		Jongcheon-myeon	National Route 77 overlap Prefectural Route 617 overlap
Gwanri IS	관리삼거리	Biin-ro		Biin-myeon	National Route 77 overlap
No name	(이름 없음)	Seondo-gil
Seongnae IS	성내사거리	Prefectural Route 607 (Seoin-ro) Biin-ro
Chunjangdae IC	춘장대 나들목	Seohaean Expressway
Singu IS	신구삼거리	Singuyugok-ro
Yaryong IS	야룡삼거리	Manseundong-gil	Boryeong City	Jusan-myeon
Jusan-myeon Office	주산면사무소
Geumam IS Jusan Elementary School	금암삼거리 주산초등학교	Jusanbeotkkot-ro
Industrial Complex IS	산업단지교차로	Boryeongjusan Industrial Complex
Daechang IS	대창사거리	Doksan-ro Jangteo 6-gil		Ungcheon-eup
Daechang Bridge	대창교
Ungcheon Bridge IS	웅천교삼거리	Jangteojungang-gil
Daecheon-ri IS	대천리삼거리	Prefectural Route 606 (Mansu-ro)			National Route 77 overlap Prefectural Route 606 overlap
Muchangpo IS	무창포삼거리	Prefectural Route 606 (Muchangpo-ro)			National Route 77 overlap Prefectural Route 606 overlap
Eupnae IS	읍내삼거리	Woljeon-ro		Nampo-myeon	National Route 77 overlap
Nampo IS	남포삼거리	Boryeongnam-ro
Nampo IS	남포 교차로	(Connection road are under construction)
Myeongcheon IS	명천 교차로	National Route 40 (Seongjusan-ro)		Daecheon-dong	National Route 40, National Route 77 overlap
Hwasan IS	화산 교차로	National Route 36 National Route 77 (Daecheon-ro)			National Route 40, National Route 77 overlap
Bonghwang Tunnel	봉황터널				National Route 40 overlap Approximately 1120m
Gwanchang IS	관창 교차로	Boryeongbuk-ro		Jugyo-myeon	National Route 40 overlap
Jugyo IS	주교사거리	Prefectural Route 610 (Ulgyekeun-gil)		Jupo-myeon	National Route 40 overlap Prefectural Route 610 overlap
Chungseo-ro IS	충서로사거리	Chungseo-ro
Gwansan IS	관산사거리	Jupoyeok-gil
Bongdang IS	봉당삼거리	Wondang-gil
Jupo IS	주포사거리	National Route 40 (Chungcheongsuyeong-ro) Boryeongeupseong-gil
Magang IS	마강삼거리	Bakgangsul-gil			Prefectural Route 610 overlap
Tongnam IS	통남삼거리	Yahyeonjeongjeon-gil		Cheongso-myeon
Cheongso IS	청소교차로	Prefectural Route 610 (Cheongsokeun-gil)
Jinjuk IS	진죽사거리	Cheongsokeun-gil
Jaecheong IS	재정삼거리	Gimjwajin-ro
Madong IS	마동삼거리	Madong 3-gil
Jukrim IS	죽림교차로	Gwangcheon-ro
Yongam IS	옹암교차로	Gwangcheon-ro	Hongseong County	Gwangcheon-eup
Danarae IS	단아래사거리	Prefectural Route 96 (Hongnam-ro)
Sinjin IS	신진삼거리	Gwangcheon-ro
Hongju Passenger Corp.	홍주여객
Jijeong IS	지정삼거리	Geobuk-ro		Guhang-myeon
Industrial Complex IS	산업단지삼거리	Chungseo-ro966beon-gil		Guhang-myeon
Maon IS	마온교차로	National Route 29 (Nambusunhwan-ro) Chungseo-ro		Hongseong-eup	National Route 29 overlap
Hakgye IS	학계교차로	Daehak-gil			National Route 29 overlap
Yeongam IS	영암교차로	Prefectural Route 609 (Hongjangbuk-ro)			National Route 29 overlap
Goam IS	고암교차로	National Route 29 (Chungjeol-ro)			National Route 29 overlap
Jangseong IS	장성교차로	Chungseo-ro		Geumma-myeon
Singok IS	신곡사거리	Chungseo-ro910beon-gil
Baeyang IS	배양삼거리	Prefectural Route 616 (Geumma-ro)
Hwayang IS	화양삼거리	Geumbuk-ro
Bupyeong IS	부평사거리	Gwanggeumbuk-ro
Daegyo IS	대교교차로	Bongsusan-ro
No name	(이름 없음)	Maejukheon-gil		Hongbuk-myeon
No name	(이름 없음)	Eungbong-ro	Yesan County	Eungbong-myeon
Eungbong IS	응봉사거리	Prefectural Route 619 (Yedang-ro)
(No name IS)	(교차로 이름 미상)	Prefectural Route 602 (Chungnam-daero)
Yesan-Sudeoksa IC	예산수덕사 나들목	Dangjin-Yeongdeok Expressway		Oga-myeon
Driver's License Examination Office IS	면허시험장사거리	Guksabong-ro Osin-ro
Oga IS	오가사거리	Sinjangwonpyeong-gil Ogajungang-ro
Yesan Bridge	예산대교			Yesan-eup
Muhan IS	무한교차로	National Route 32 Prefectural Route 70 Prefectural Route 618 (Chadong-ro) Yesan-ro			National Route 32 overlap Prefectural Route 70, 618 overlap
Yesan Underpass	예산지하차도	Geumo-daero
Balyeon IS	발연 교차로	Prefectural Route 618 (Hwanggeumtteul-ro)
Seokyang IS	석양교차로	National Route 45 Prefectural Route 70 (Yunbonggil-ro)			National Route 32, National Route 45 overlap Prefectural Route 70 overlap
Gwanjak IS	관작삼거리	Sillyewon-ro			National Route 32, National Route 45 overlap
Changso IS	창소사거리	Changmal-ro Chusa-ro
Jeomchon IS	점촌삼거리	Sillyewon-ro
Ganyang IS	간양교차로	National Route 32 (Yedangpyeongya-ro)
Geumsan-ri IS	금산리교차로	Prefectural Route 645 (Asanman-ro)	Asan City	Dogo-myeon	National Route 45 overlap Prefectural Route 645 overlap
Geumsan IS	금산삼거리	Oncheon-daero207beon-gil
Sijeon IS	시전사거리	Prefectural Route 645 (Dogosan-ro)
Dogooncheon Station	도고온천역				National Route 45 overlap
Hyangsan IS	향산사거리	Sintong-gil
Soonchunhyang University	순천향대학교			Sinchang-myeon
Soonchunhyang University IS	순천향대삼거리	Prefectural Route 623 (Suncheonhyang-ro)			National Route 45 overlap Prefectural Route 623 overlap
Eupnae IS	읍내삼거리	Prefectural Route 623 (Seobunam-ro)			National Route 45 overlap Prefectural Route 623 overlap
Eupnae IS	읍내 교차로	National Route 39 (Onyangsunhwan-ro) National Route 45 (Oncheon-daero)			National Route 39 overlap National Route 45 overlap
Haengmok IS	행목 교차로	Prefectural Route 623 (Suncheonhyang-ro)			National Route 39 overlap
Chosa IS	초사 교차로	Mugunghwa-ro		Onyang-dong
Jangchon IS	장촌 교차로	National Route 39 (Uiam-ro)
Jwabu IS	좌부 교차로	Prefectural Route 623 (Gobul-ro)
Namdong IS	남동 교차로	Oncheon-daero		Baebang-eup
Mosan IS Baebang Station	모산사거리 배방역	Baebang-ro
No name	(이름 없음)	Oncheon-daero
Eunsu IS	은수 교차로	National Route 43 (Sejong ~ Pyeongtaek Motorway) Buksudong-ro
Bonggang IS Bonggang Bridge	봉강삼거리 봉강교	Hoseo-ro
Tangjeong IS (Segyo Underpass)	탕정교차로 (세교지하차도)	Saeasan-ro
No name	(이름 없음)	Huimang-ro
No name (Jangjae Underpass)	(이름 없음) (장재지하차도)	Gosokcheol-daero
Sinbang IS (Sinbang Underpass)	신방삼거리 (신방지하차도)	Chungmu-ro	Cheonan City	Dongnam District
Hasin IS	하신삼거리	Sinchon 4-ro
Saemal IS	새말사거리	Seobu-daero
Nambu Overpass	남부고가교
Cheongsam IS (Cheongsam Overpass)	청삼교차로 (청삼고가차도)	National Route 1 National Route 23 (Cheonan-daero)
Chwiamsan Tunnel	취암산터널				Approximately 1360m
Gyocheon IS	교천교차로	Gyocheon 2-gil		Dongnam District Mokcheon-eup
Singye IS	신계교차로	Chungjeol-ro
Unjeon IS	운전교차로	Sinsaunjeon-gil
Hwaseong IS	화성교차로	5sandan-ro		Dongnam District Seongnam-myeon
Jangsan IS	장산교차로	Prefectural Route 693 (Susin-ro)		Dongnam District Susin-myeon
Byeongcheon Bridge	병천교			Dongnam District Susin-myeon
Byeongcheon Bridge				Dongnam District Byeongcheon-myeon
Changdeul 2 IS	창들2 교차로	Prefectural Route 696 (Maebong-ro)
Maebongsan Tunnel	매봉산터널				Approximately 360m
Yongdu 1 Bridge Yongdu 2 Bridge	용두1교 용두2교
Yongdu IS	용두 교차로	Yongduri 2-gil
Gudo IS	구도 교차로	Gudo 2-gil		Dongnam District Dong-myeon
Hwagye IS	화계 교차로	Chungjeol-ro
Dongmyeon IS	동면삼거리	Dongsan 1-gil
Dongsan IS	동산삼거리	Hwabok-ro			Continuation into North Chungcheong Province

North Chungcheong Province

More information Name, Hangul name ...

Name ^[4]	Hangul name	Connection	Location		Note
Botapsa IS	보탑사삼거리	Prefectural Route 313 (Munsa-ro) Gimyusin-gil	Jincheon County	Jincheon-eup	South Chungcheong Province - North Chungcheong Province border line
Seongam Elementary School	성암초등학교
Saseok IS	사석삼거리	Munjin-ro
Jatgogae	잣고개
Guncheong IS Jincheon County Office	군청사거리 진천군청	Munhwa-ro Sangsan-ro
Byeokam IS	벽암사거리	National Route 34 (Baekgok-ro) Jungangbuk-ro			National Route 34 overlap
Seongseok IS	성석사거리	Jungangdong-ro Jingwang-ro
Sinseong IS	신성사거리	National Route 34 (Munhwa-ro) Wondeok-ro
Jincheon IC (Angol IS)	진천 나들목 (안골삼거리)	Jungbu Expressway
Gasan IS	가산삼거리	Gasan-gil
No name	(이름 없음)	Deokgeum-ro		Deoksan-myeon
No name	(이름 없음)	Seupji-gil
No name	(이름 없음)	Prefectural Route 513 (Chogeum-ro)
Yongmong IS	용몽 교차로	Yongmong-ro
Sindon IS	신돈 교차로	Prefectural Route 533 (Wonjung-ro)	Eumseong County	Maengdong-myeon
Bonseong IS	본성 교차로	Prefectural Route 533 (Deokgeum-ro)
Masan IS	마산 교차로	Prefectural Route 533 (Daedong-ro)
Sambong Bridge	삼봉교			Geumwang-eup
Geumwang-Kkotdongne IC (Geumwang-Kkotdongne IC IS)	금왕꽃동네 나들목 (금왕꽃동네IC 교차로)	Pyeongtaek–Jecheon Expressway Maengdongsandanjiwon-ro
Yuchon IS	유촌 교차로	Yuchon-ro
Saeteo Bridge Oseon 2 Bridge	새터교 오선2교
Oseon IS	오선 교차로	Prefectural Route 82 (Daegeum-ro)
Gajin Bridge	가진교
Naesong IS	내송 교차로	Prefectural Route 329 (Geumil-ro)
Deokdong Bridge Gulam Bridge Eungcheon Bridge	덕동교 굴암교 응천교
Jeongsaeng IS	정생 교차로	National Route 37 (Saengeum-daero)			National Route 37 overlap
Dosin IS	도신 교차로	Saengsam-ro		Saenggeuk-myeon	National Route 37 overlap
Byeongam IS	병암 교차로	Prefectural Route 306 (Ilsaeng-ro) Eumseong-ro			National Route 37 overlap Prefectural Route 306 overlap
Saenggeuk IS	생극사거리	Osin-ro			National Route 37 overlap Prefectural Route 306 overlap
Saenggeuk IS	생극 교차로	National Route 3 Prefectural Route 306 (Jungwon-daero)			National Route 3, National Route 37 overlap Prefectural Route 306 overlap
Chapyeong IS	차평 교차로	Eumseong-ro			National Route 3, National Route 37 overlap Continuation into Gyeonggi Province
Wondang IS	원당교차로	Prefectural Route 520 (Wondang-gil)		Gamgok-myeon
Cheongmicheon Bridge	청미천교			Gamgok-myeon

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This article uses material from the Wikipedia article National_Route_21_(South_Korea), and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.

[1] [1]
대통령령 제5771호 일반국도노선지정령, 1971년 8월 31일 제정.

[2] [2]
Intersection and interchange are also included , as well as buildings and facilities in the surrounding area

[3] [3]
Intersection and interchange are also included , as well as buildings and facilities in the surrounding area

[4] [4]
Intersection and interchange are also included , as well as buildings and facilities in the surrounding area

[5] [5]
Intersection and interchange are also included , as well as buildings and facilities in the surrounding area

[1]

[2]

[3]

[4]

[5]

Name ^[5]	Hangul name	Connection	Location		Note
Cheongmicheon Bridge	청미천교		Icheon City	Janghowon-eup	National Route 3, National Route 37 overlap North Chungcheong Province - Gyeonggi Province border line Terminus
Jinam IC	진암 나들목	National Route 3 (Jungwon-daero) National Route 37 National Route 38 (Seodong-daero)	Icheon City	Janghowon-eup

National_Route_21_(South_Korea)

National Route 21 (South Korea)

Main stopovers

Major intersections

North Jeolla Province

South Chungcheong Province

North Chungcheong Province

Gyeonggi Province

References

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