Seohaean Expressway

• December 1991 – Construction begin
• May 1993 – Construction begin of Seohae Grand Bridge
• 6 July 1994 – Seoul–Ansan segment opened to traffic.
• 17 December 1996 – Ansan–Pyeongtaek segment opened to traffic.
• 25 August 1998 – Mokpo–Muan segment opened to traffic.
• 30 October 1998 – Gunsan–Seocheon segment opened to traffic.
• 10 November 2000 – Seohae Grand Bridge segment opened to traffic. and Pyeongtaek–Dangjin segment opened to traffic.
• 27 September 2001 – Dangjin–Seocheon segment opened to traffic.
• 21 December 2001 – The last segment, Gunsan–Muan segment opened to traffic.
• 30 July 2010 – Work begins to widen to 8 lanes in Ansan–Iljik Junction.
• 23 November 2011 – Jungnim Junction opened to traffic.
• October 2014 – Seohae Bridge – W. Pyeongtaek Junction Section (10.3 km) road expansion started construction.
• November 2014 – The 10-lane expansion of the Ansan JCT – Jonam JCT (2.9 km) section was completed.
• June 2015 – The 10-lane expansion of the Jonam JCT – Mokgam IC (3.2 km) section was completed.
• 23 December 2015 – The 10-lane expansion of the Mokgam IC – Iljik JCT (3.8 km) section was completed.
• 3 July 2016 – Soha Junction opened to traffic.

Legend:

• I/C - Interchange, I/S - Intersection, RSA - Rest and service area, OBR - Overhead bridge restaurant, R/R - Restaurant and rest plaza, L/B - Layby, V/P - Vista point, TN - tunnel, T/P - Toll plaza, BR - Bridge

• C - Cloverleaf, S - Stack, T-A - Trumpet-A, T-B - Trumpet-B, DT - Directional-T/Y, SDT - Semi-Directional-T/Y, P-Y - Partial-Y, D - Diamond, P-C - Partial cloverleaf, D-D - Diverging diamond, D-R - Direct ramp

More information Province, Location ...

Province	Location	km		Exit	Name	Korean name	Hanja name	Connections	Notes
Connected directly to Seobu Ganseondoro (서부간선도로)
Seoul	Geumcheon	0.65	340.81		Seoul	서울 종점	서울 終點	Seobu Urban Expressway
		4.20	340.16	38	Geumcheon IC	금천나들목	衿川나들목	National Route 1 Doksan Station ( Line 1)	Seoul-bound enter only Mokpo-bound exit only
				37	Soha JC	소하분기점	所下分岐點	Suwon-Munsan Expressway Gangnam Beltway	Gangnam-bound only Mokpo-bound only
Gyeonggi	Gwangmyeong	2.67	335.96	36	Iljik JC	일직분기점	日直分岐點	2nd Gyeongin Expressway
	Anyang	3.15	333.29	35	Gwangmyeong Stn. IC	광명역나들목	光明驛나들목	Ori-ro KTX Gwangmyeong Stn.
	Siheung	3.16	332.14	34	Mokgam IC	목감나들목	牧甘나들목	National Route 42 Suwon–Munsan Expressway 3rd Gyeongin Highway
				SA	Mokgam SA	목감간이휴게소	牧甘簡易休憩所		Seoul-bound only
		2.89	328.98	33	Jonam JC	조남분기점	鳥南分岐點	Capital Region First Ring Expressway
	Ansan			TG	W. Seoul TG	서서울요금소	西서울料金所		Main Tollgate
		5.12	326.09	32	Ansan JC	안산분기점	安山分岐點	Yeongdong Expressway
		3.80	320.97	31-1	Palgok JC	팔곡분기점	八谷分岐點	Yeongdong Expressway	Mokpo-bound enter only Gangneung-bound exit only
	Hwaseong	4.02	317.17	31	Maesong IC	매송나들목	梅松나들목	Local Route 84
				SA	Maesong SA	매송휴게소	梅松休憩所
		13.62	313.15	30	Bibong IC	비봉나들목	飛鳳나들목	National Route 39
				SA	Hwaseong SA	화성휴게소	華城休憩所
				29-1	Paltan JC	팔탄분기점	八灘分岐點	Capital Region Second Ring Expressway
		7.82	299.53	29	Baran IC	발안나들목	發安나들목	National Route 39
	Pyeongtaek	6.53	291.71	28	W Pyeongtaek JC	서평택분기점	西平澤分岐點	Pyeongtaek–Jecheon Expressway Pyeongtaek-Siheung Expressway
		12.64	285.18	27	W Pyeongtaek IC	서평택나들목	西平澤나들목	National Route 82
				27-1	Poseung JC	포승분기점	浦升分岐點	Iksan–Pyeongtaek Expressway Branch
				BR	Seohae Bridge	서해대교	西海大橋
Chungnam	Dangjin			SA	Haengdam Island SA (Ocean Park Resort)	행담도휴게소	行淡島休憩所		In the Seohae Grand Bridge
		8.07	272.54	26	Songak IC	송악나들목	松岳나들목	National Route 38 Dangjin Steelworks
		9.39	264.47	25	Dangjin IC	당진나들목	唐津나들목	National Route 34
		6.56	255.08	24	Dangjin JC	당진분기점	唐津分岐點	Dangjin-Yeongdeok Expressway
	Seosan	10.78	248.52	23	Seosan IC	서산나들목	西山나들목	National Route 32
				SA	Seosan SA	서산휴게소	西山休憩所
		13.68	237.80	22	Haemi IC	해미나들목	海美나들목	National Route 45 Haemieupseong
	Hongseong	10.80	224.12	21	Hongseong IC	홍성나들목	洪城나들목	National Route 29
				SA	Hongseong SA	홍성휴게소	洪城休憩所
		19.72	213.32	20	Gwangcheon IC	광천나들목	廣川나들목	Local Route 96
	Boryeong			SA	Daecheon SA	대천휴게소	大川休憩所
		11.99	193.60	19	Daecheon IC	대천나들목	大川나들목	National Route 36 Daecheon Beach
		8.71	181.61	18	Muchangpo IC	무창포나들목	武昌浦나들목	Local Route 606
	Seocheon	11.91	172.90	17	Chunjangdae IC	춘장대나들목	春長臺나들목	National Route 21
				SA	Seocheon SA	서천휴게소	舒川休憩所
		8.98	160.99	16	Seocheon IC	서천나들목	舒川나들목	National Route 4
		6.23	152.01	15	E Seocheon JC	동서천분기점	東舒川分岐點	Seocheon-Gongju Expressway
Jeonbuk	Gunsan			SA	Gunsan SA	군산휴게소	群山休憩所		Seoul-bound only
		8.40	145.78	14	Gunsan IC	군산나들목	群山나들목	National Route 21
				SA	Gunsan SA	군산휴게소	群山休憩所		Mokpo-bound only
		12.55	137.38	13	E Gunsan IC	동군산나들목	東群山나들목	National Route 21 National Route 26 National Route 29
	Gimje			12-1	Gimje JC	김제 분기점	金堤分岐點	Saemangeum-Pohang Expressway
		13.93	124.83	12	W Gimje IC	서김제나들목	西金堤나들목	National Route 29
	Buan	16.18	110.90	11	Buan IC	부안나들목	扶安나들목	National Route 30
		9.87	94.72	10	Julpo IC	줄포나들목	茁浦나들목	Local Route 710
	Gochang	7.91	84.85	9	Seonunsan IC	선운산나들목	禪雲山나들목	National Route 22 Seonunsa
				SA	Gochang Goindol SA	고창고인돌휴게소	高敞고인돌休憩所
		2.74	76.94	8	Gochang IC	고창나들목	高敞나들목	Local Route 15
		16.06	74.20	7	Gochang JC	고창분기점	高敞分岐點	Gochang-Damyang Expressway
				SA	Daesan SA	대산휴게소	大山休憩所		Seoul-bound only (temporary rest area, no gas station)
Jeonnam	Yeonggwang	24.33	58.14	6	Yeonggwang IC	영광나들목	靈光나들목	National Route 23
				5-1 SA	Bulgapsan Yeonggwang SA	부안고려청자휴게소			Muan-bound only (temporary rest area, no gas station) Hi-pass exclusive interchange
	Hampyeong			SA	Hampyeong -cheonji SA	함평천지휴게소	咸平天地休憩所		Seoul-bound only
		7.81	33.81	5	Hampyeong IC	함평나들목	咸平나들목	National Route 23
				SA	Hampyeong -cheonji SA	함평천지휴게소	咸平天地休憩所		Mokpo-bound only
		2.46	26.00	4	Hampyeong JC	함평분기점	咸平分岐點	Muan-Gwangju Expressway Muan International Airport
	Muan	17.28	23.54	3	Muan IC	무안나들목	務安나들목	National Route 1
				TG	Mokpo TG	목포요금소	木浦料金所		Main Tollgate
		2.10	6.26	2	Illo IC	일로나들목	一老나들목	Local Route 815
		3.90	4.16		Jungnim JC	죽림분기점	竹林分岐點	Namhae Expressway (Mokpo–Gwangyang) National Route 2 Jeonnam Provincial Office Mokpo Airport
	Mokpo	0.26	0.26	1	Mokpo IC	목포나들목	木浦나들목	National Route 1 (Yeongsan-ro)
		–	0.0		Mokpo	목포 시점	木浦 始點	National Route 1 National Route 2 Mokpo Bridge Aphae Bridge
Connected directly to National Route 1, National Route 2 (Goha-daero) (고하대로)

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MBC's Entertainment program, Infinite Challenge held a Seohaean Expressway Festival in Haengdam Island Service area in June 2011.

• Roads and expressways in South Korea
• Transportation in South Korea

• KEC (Korea Expressway Corporation)
• MOLIT South Korean Government Transport Department