# Seosan–Yeongdeok Expressway

Seosan–Yeongdeok Expressway (Korean: 당진영덕고속도로; Hanja: 唐津盈德高速道路; RR: Dangjin–Yeongdeok Gosokdoro) also known as 6th East–West Expressway is an expressway in South Korea connecting Dangjin to Yeongdeok County.
Numbered 30, it means an East–West expressway. At 305.5 km, it is the fifth-longest expressway in South Korea. Two sections of the route, Dangjin-Daejeon Expressway and Cheongju-Yeongdeok Expressway is directly connected with Gyeongbu Expressway.

## History

* 28 November 2007: Cheongwon JC-Nakdong JC segment opens to traffic
* 27 August 2009 : Magoksa IC opened
* 18 December 2009 : Nakdong JC-Yeongdeok IC begins construction
* 23 December 2009 : N.Yuseong IC opened
* 28 June 2012 : Nakdong JC-Sangju JC begins construction
* 1 July 2012 : E.Gongju IC and N.Yuseong IC changed the name to E.Sejong IC and S.Sejong IC
* 1 December 2014 : Cheongwon JC changed to Cheongju JC, Cheongwon-Sangju Expressway changed to Cheongju-Sangju Expressway
* 23 December 2016 : Nakdong JC - Yeongdeok IC section was scheduled to open, but it was delayed to 00:00 on 26 December due to additional security problems. The postponement was announced during the opening ceremony on the 23rd
* 26 December 2016 : Nakdong JC - Yeongdeok IC segment opened to traffic

## Compositions
### Lanes

* Dangjin JC ~ Hoedeok JC, Cheongju JC ~ Yeongdeok IC : 4 lanes
* Hoedeok JC ~ Cheongju JC (Gyeongbu Expressway overlap) : 8 lanes

### Length

* 197.88 km

### Speed limit

* Dangjin JC ~ Yuseong JC, Cheongju JC ~ Nakdong JC : 110 km/h
* Yuseong JC ~ Cheongju JC, Nakdong JC ~ Yeongdeok IC : 100 km/h

### Tunnels
#### Dangjin ~ Daejeon section

| Name | Location | Length | Completion year | Note |
| Daeheung Tunnel | Sonji-ri, Daeheung-myeon, Yesan County, South Chungcheong Province | 556m | 2009 | Yeongdeok-bound |
| Daeheung Tunnel | Jigok-ri, Daeheung-myeon, Yesan County, South Chungcheong Province | 562m | 2009 | Dangjin-bound |
| Chadong Tunnel | Chadong-ri, Sinyang-myeon, Yesan County, South Chungcheong Province | 363m | 2009 | Yeongdeok-bound |
| Chadong Tunnel | Nokcheon-ri, Yugu-eup, Gongju, South Chungcheong Province | 315m | 2009 | Dangjin-bound |
| Sinyeong Tunnel | Nokcheon-ri, Yugu-eup, Gongju, South Chungcheong Province | 686m | 2009 | Yeongdeok-bound |
| Sinyeong Tunnel | Sinyeong-ri, Yugu-eup, Gongju, South Chungcheong Province | 680m | 2009 | Dangjin-bound |
| Hwaheung Tunnel | Yugu-ri, Yugu-eup, Gongju, South Chungcheong Province | 305m | 2009 | Yeongdeok-bound |
| Hwaheung Tunnel | Hwaheung-ri, Sinpung-myeon, Gongju, South Chungcheong Province | 305m | 2009 | Dangjin-bound |
| Haewol Tunnel | Haewol-ri, Sagok-myeon, Gongju, South Chungcheong Province | 492m | 2009 | Yeongdeok-bound |
| Haewol Tunnel | Hogye-ri, Sagok-myeon, Gongju, South Chungcheong Province | 440m | 2009 | Dangjin-bound |
| Hogye Tunnel | Hogye-ri, Sagok-myeon, Gongju, South Chungcheong Province | 562m | 2009 | Yeongdeok-bound |
| Hogye Tunnel | Hogye-ri, Sagok-myeon, Gongju, South Chungcheong Province | 550m | 2009 | Dangjin-bound |
| Yuseong Tunnel | Banseok-dong, Yuseong District, Daejeon | 315m | 2009 | Yeongdeok-bound |
| Yuseong Tunnel | Hagi-dong, Yuseong District, Daejeon | 315m | 2009 | Dangjin-bound |

#### Cheongju ~ Sangju section

| Name | Location | Length | Completion year | Note |
| Munui 1 Tunnel | Nohyeon-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 536m | 2007 | Yeongdeok-bound |
| Munui 1 Tunnel | Magu-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 451m | 2007 | Dangjin-bound |
| Munui 2 Tunnel | Magu-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 220m | 2007 | Yeongdeok-bound |
| Munui 2 Tunnel | Magu-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 120m | 2007 | Dangjin-bound |
| Pibanryeong Tunnel | Magu-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 1,952m | 2007 | Yeongdeok-bound |
| Pibanryeong Tunnel | Magu-ri, Munui-myeon, Sangdang District, Cheongju, North Chungcheong Province | 2,014m | 2007 | Dangjin-bound |
| Hoein Tunnel | Geoncheon-ri, Hoebuk-myeon, Boeun County, North Chungcheong Province | 220m | 2007 | Yeongdeok-bound |
| Hoein Tunnel | Geoncheon-ri, Hoebuk-myeon, Boeun County, North Chungcheong Province | 215m | 2007 | Dangjin-bound |
| Suriti Tunnel | Geoncheon-ri, Hoebuk-myeon, Boeun County, North Chungcheong Province | 903m | 2007 | Yeongdeok-bound |
| Suriti Tunnel | Geoncheon-ri, Hoebuk-myeon, Boeun County, North Chungcheong Province | 825m | 2007 | Dangjin-bound |
| Suhan Tunnel | Gyoam-ri, Suhan-myeon, Boeun County, North Chungcheong Province | 214m | 2007 | |
| Tanbu Tunnel | Goseung-ri, Tanbu-myeon, Boeun County, North Chungcheong Province | 220m | 2007 | |
| Hwaseo 1 Tunnel | Sinbong-ri, Hwaseo-myeon, Sangju, North Chungcheong Province | 225m | 2007 | |
| Hwaseo 2 Tunnel | Sanggok-ri, Hwaseo-myeon, Sangju, North Chungcheong Province | 128m | 2007 | |
| Naeseo 1 Tunnel | Gogok-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 131m | 2007 | |
| Naeseo 2 Tunnel | Gogok-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 470m | 2007 | Yeongdeok-bound |
| Naeseo 2 Tunnel | Gogok-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 418m | 2007 | Dangjin-bound |
| Naeseo 3 Tunnel | Neungam-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 500m | 2007 | Yeongdeok-bound |
| Naeseo 3 Tunnel | Neungam-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 520m | 2007 | Dangjin-bound |
| Naeseo 4 Tunnel | Neungam-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 1,335m | 2007 | Yeongdeok-bound |
| Naeseo 4 Tunnel | Neungam-ri, Naeseo-myeon, Sangju, North Chungcheong Province | 1,370m | 2007 | Dangjin-bound |
* Nakdong Tunnel
* Danmil 1 Tunnel
* Danmil 2 Tunnel
* Danmil 3 Tunnel
* Danmil 4 Tunnel
* Ansa 1 Tunnel
* Ansa 2 Tunnel
* Anpyeong 1 Tunnel
* Anpyeong 2 Tunnel
* Anpyeong 3 Tunnel
* Danchon 1 Tunnel
* Danchon 2 Tunnel
* Danchon 3 Tunnel
* Danchon 4 Tunnel
* Oksan Tunnel
* Gilan 1 Tunnel
* Gilan 2 Tunnel
* Gilan 3 Tunnel
* Gilan 4 Tunnel
* Sailsan Tunnel
* Pacheon 1 Tunnel
* Pacheon 2 Tunnel
* Pacheon 3 Tunnel
* Jinbo Tunnel
* Jipum 1 Tunnel
* Jipum 2 Tunnel
* Jipum 3 Tunnel
* Jipum 4 Tunnel
* Jipum 5 Tunnel
* Jipum 6 Tunnel
* Jipum 7 Tunnel
* Jipum 8 Tunnel
* Jipum 9 Tunnel
* Jipum 10 Tunnel
* Dalsan 1 Tunnel
* Dalsan 2 Tunnel
* Dalsan 3 Tunnel
* Yeongdeok Tunnel

### Bridges
## Major stopovers
### South Chungcheong Province

* Dangjin (Sagiso-dong - Myeoncheon-myeon) - Yesan County (Bongsan-myeon - Godeok-myeon - Sapgyo-eup - Oga-myeon - Eungbong-myeon - Daeheung-myeon - Sanyang-myeon) - Gongju (Yugu-eup - Sinpung-myeon - Sagok-myeon - Useong-myeon - Wolmi-dong - Useong-myeon - Uidang-myeon)

### Sejong

* Janggun-myeon - Yeongi-myeon

### South Chungcheong Province

* Gongju Banpo-myeon

### Sejong

* Geumnam-myeon

### Daejeon

* Yuseong District (Ansan-dong - Oesam-dong - Banseok-dong - Oesam-dong - Hagi-dong - Jaun-dong - Jang-dong - Banghyeon-dong - Hwaam-dong - Gwanpyeong-dong - Yongsan-dong - Tamnip-dong - Jeonmin-dong) - Daedeok District (Sindae-dong - Wa-dong - Sangseo-dong - Deokam-dong - Moksang-dong - Seokbong-dong)

### North Chungcheong Province

* Cheongju Seowon District (Hhyeondo-myeon - Nami-myeon) - Cheongju Sangdang District (Munui-myeon - Gadeok-myeon) - Boeun County (Hoein-myeon - Suhan-myeon - Boeun-eup - Tanbu-myeon - Jangan-myeon - Maro-myeon)

### North Gyeongsang Province

* Sangju (Hwanam-myeon - Hwaseo-myeon - Naeseo-myeon - [[Oenam-myeon - Gaeun-dong - Gajang-dong - Yangchon-dong - Jicheon-dong - Odae-dong - Geodong-dong - Nakdong-myeon) - Uiseong County (Danmil-myeon - Danbuk-myeon - Angye-myeon - Ansa-myeon - Anpyeong-myeon) - Andong Iljik-myeon - Uiseong County (Danchon-myeon - Jeomgok-myeon - Oksan-myeon) - Andong]] Gilan-myeon - Cheongsong County (Pacheon-myeon - Jinbo-myeon) - Yeongdeok County (Jipum-myeon - Dalsan-myeon - Ganggu-myeon - Yeongdeok-eup)

## List of facilities

* IC: Interchange, JC: Junction, SA: Service Area, TG:Tollgate
** Light purple(■): Honam Expressway overlap
** Light green(■): Gyeongbu Expressway overlap
** Light blue(■): Sangju-Yeongcheon Expressway overlap
| No. | Name | Korean name | Distance | Distance | Connection | Location | Location | Note |
| 1 | Dangjin JC | 당진 분기점 | - | 0.00 | Seohaean Expressway | South Chungcheong Province | Dangjin | |
| 2 | Myeoncheon IC | 면천 나들목 | 4.04 | 4.04 | Local Route 70 (Myeoncheon-ro) Ami-ro | South Chungcheong Province | Dangjin | |
| SA | (Myeoncheon SA) | (면천휴게소) | | | | South Chungcheong Province | Dangjin | |
| 3 | Godeok IC | 고덕 나들목 | 8.66 | 12.70 | National Route 40 (Yedeok-ro) | South Chungcheong Province | Yesan County | |
| 4 | Yesan-Sudeoksa IC | 예산수덕사 나들목 | 11.68 | 24.38 | National Route 21 (Chungseo-ro) | South Chungcheong Province | Yesan County | |
| SA | Yesan SA | 예산휴게소 | | | | South Chungcheong Province | Yesan County | |
| 5 | Sinyang IC | 신양 나들목 | 12.51 | 36.89 | Local Route 70 (Cheongsin-ro) | South Chungcheong Province | Yesan County | |
| 6 | Yugu IC | 유구 나들목 | 10.53 | 47.42 | National Route 39 (Geumgyesan-ro) | South Chungcheong Province | Gongju | |
| SA | (Sinpung SA) | (신풍휴게소) | | | | South Chungcheong Province | Gongju | |
| 7 | Magoksa IC | 마곡사 나들목 | 9.14 | 56.56 | National Route 32 (Chadong-ro) | South Chungcheong Province | Gongju | Dangjin-bound Only |
| 8 | W.Gongju JC | 서공주 분기점 | 3.79 | 60.35 | Seocheon-Gongju Expressway | South Chungcheong Province | Gongju | |
| 9 | Gongju JC | 공주 분기점 | 2.67 | 63.02 | Nonsan-Cheonan Expressway | South Chungcheong Province | Gongju | |
| 10 | Gongju IC | 공주 나들목 | 2.87 | 65.89 | Nonsan-Cheonan Expressway National Route 23 (Charyeong-ro) National Route 32 (Geumbyeong-ro) National Route 36 (Chadong-ro·Charyeong-ro) Baekjekeun-gil | South Chungcheong Province | Gongju | |
| SA | Gongju SA | 공주휴게소 | | | | South Chungcheong Province | Gongju | |
| 11 | W. Sejong IC | 서세종 나들목 | 7.00 | 72.89 | National Route 36 (Janggi-ro) | Sejong | Sejong | Former E.Gongju IC |
| 12 | S.Sejong IC | 남세종 나들목 | 12.56 | 85.45 | National Route 1 (Sejong-ro) Bukyuseong-daero | Sejong | Sejong | Former N.Yuseong IC |
| 13 | Yuseong JC | 유성 분기점 | 6.13 | 91.58 | Honam Expressway Branch | Daejeon | Yuseong District | |
| | N.Daejeon IC | 북대전 나들목 | 4.61 | 96.19 | Local Route 32 (Daedeok-daero) Local Route 57 (Daedeok-daero) | Daejeon | Yuseong District | |
| | Hoedeok JC | 회덕 분기점 | 3.61 | 99.80 | Gyeongbu Expressway Honam Expressway Branch | Daejeon | Daedeok District | |
| SA | Sintanjin SA | 신탄진휴게소 | | | | Daejeon | Daedeok District | Yeongdeok-bound Only |
| | Sintanjin IC | 신탄진 나들목 | 4.08 | 103.88 | National Route 17 (Sintanjin-ro) Sintanjin-ro 681beon-gil | Daejeon | Daedeok District | |
| SA | Jugam SA | 죽암휴게소 | | | | North Chungcheong Province | Cheongju | |
| | S.Cheongju IC | 남청주 나들목 | 11.08 | 114.96 | National Route 17 (Cheongnam-ro) Local Route 96 (Yeoncheong-ro·Cheongnam-ro) | North Chungcheong Province | Cheongju | Former Cheongwon IC |
| 17 | Cheongju JC | 청주 분기점 | 3.50 | 118.46 | Gyeongbu Expressway | North Chungcheong Province | Cheongju | Former Cheongwon IC |
| 18 | Munui IC | 문의 나들목 | 8.10 | 126.56 | Local Route 32 (Micheongoeun-ro) | North Chungcheong Province | Cheongju | |
| 19 | Hoein IC | 회인 나들목 | 10.70 | 137.26 | National Route 25 (Bocheong-daero) | North Chungcheong Province | Boeun County | |
| 20 | Boeun IC | 보은 나들목 | 10.82 | 148.08 | National Route 19 (Nambu-ro) | North Chungcheong Province | Boeun County | |
| 21 | Songnisan IC | 속리산 나들목 | 5.98 | 154.06 | National Route 25 (Bocheong-daero) | North Chungcheong Province | Boeun County | |
| SA | Songnisan SA | 속리산휴게소 | | | | North Chungcheong Province | Boeun County | Dangjin-bound Only |
| SA | Hwaseo SA | 화서휴게소 | | | | North Gyeongsang Province | Sangju | Yeongdeok-bound Only |
| 22 | Hwaseo IC | 화서 나들목 | 16.23 | 170.29 | National Route 25 (Yeongnamjeil-ro) Local Route 49 (Yeongnamjeil-ro) | North Gyeongsang Province | Sangju | |
| 23 | S.Sangju IC | 남상주 나들목 | 18.95 | 189.24 | National Route 3 (Gyeongsang-daero) | North Gyeongsang Province | Sangju | |
| 24 | Nakdong JC | 낙동 분기점 | 8.64 | 197.88 | Jungbu Naeryuk Expressway Sangju-Yeongcheon Expressway | North Gyeongsang Province | Sangju | |
| 25 | Sangju JC | 상주 분기점 | | | Sangju-Yeongcheon Expressway | North Gyeongsang Province | Sangju | |
| 26 | E.Sangju IC | 동상주 나들목 | | | National Route 25 (Nakdong-daero) National Route 59 (Sangjudain-ro·Yeongnamjeil-ro) | North Gyeongsang Province | Sangju | |
| 27 | W.Uiseong IC | 서의성 나들목 | | | National Route 28 (Seobu-ro) | North Gyeongsang Province | Uiseong County | |
| SA | Uiseong SA | 의성휴게소 | | | | North Gyeongsang Province | Uiseong County | |
| 28 | Andong JC | 안동 분기점 | | | Jungang Expressway | North Gyeongsang Province | Andong | |
| 29 | N.Uiseong IC | 북의성 나들목 | | | National Route 5 (Gyeongbuk-daero) Local Route 914 (Gyeongbuk-daero) | North Gyeongsang Province | Uiseong County | |
| SA | Jeomgok SA | 점곡휴게소 | | | | North Gyeongsang Province | Uiseong County | Yeongdeok-bound Only |
| SA | Oksan SA | 옥산휴게소 | | | | North Gyeongsang Province | Uiseong County | Dangjin-bound Only |
| 30 | E.Andong IC | 동안동 나들목 | | | National Route 35 (Chunghyo-ro) | North Gyeongsang Province | Andong | |
| SA | Cheongsong SA | 청송휴게소 | | | | North Gyeongsang Province | Cheongsong County | |
| 31 | Cheongsong IC | 청송 나들목 | | | National Route 31 (Cheongsong-ro) | North Gyeongsang Province | Cheongsong County | |
| 32 | E.Cheongsong-Yeongyang IC | 동청송영양 나들목 | | | National Route 34 (Gyeongdong-ro) | North Gyeongsang Province | Cheongsong County | |
| TG | Yeongdeok TG | 영덕 요금소 | | | | North Gyeongsang Province | Yeongdeok County | |
| 34 | Yeongdeok IC | 영덕 나들목 | | | National Route 7 (Donghae-daero) | North Gyeongsang Province | Yeongdeok County | |