The International Cable Supported Bridge Operators Association (ICSBOA)

The Seohae Bridge Fact Sheet

				Name
			
				The Seohae Bridge
			
				Local moniker(s)
			
				Seohae Grand Bridge
Seohae Bridge
Grand Bridge
			
				Location
			
				Asan Bay, South Korea
			
				Asan Bay between Gyeonggi, the most populous province and Chungcheongnam, by far South Korea’s fastest growing region.
			
				Coordinates
			
				36°56′39.9″N 126°49′23.8″E
			
				Construction started
			
				1993
			
				Date opened
			
				November 9, 2000
			
				Design type
			
				cable-stayed
			
				Construction cost (2000)
			
				 ₩677,700,000 (US$608,287; €637,751; Ұ5,030,534)
			
				Designer
			
				T.Y. Lin International
			
				Type of traffic
(road and/or rail)
			
				Road
			
				Owner/Operator
			
				Korea Expressway Corporation
			
				208-96, Dongbu-daero 922beon-gil, 
			
				Dongtan-myeon, Hwaseong-si, Gyeonggi-do
			
				Jongchil Park: pjcseven@ex.co.kr
			
						Links
					
Read more...

				Traffic
			
				2015
			
				Average Annual Daily Traffic-AADT (Both directions)
			
				83,867
			
				Max. recorded daily traffic
			
				136,631
			
				Max. recorded traffic per hour per direction
			
				Percentage of trucks
			
				14.5%
			
				Collisions Statistics
			
				Lanes
			
						Road lanes per direction:
					
						3
					
						Rail lanes per direction:
					
						0
					
						Pedestrian lane:
					
						no
					
						Cyclist lane:
					
						no
					
						Emergency lane:
					
						y
					
				Road wearing surface
			
						Type:
					
						Stone mastic asphalt
					
						Thickness:
					
						75mm (approximately)
					
				Total length of the bridge
			
				7,310 m
			
				Main span
			
				470 m
			
				Cable stayed: 990 m (60+200+470+200+50)
			
				Approach span
			
				2,340 m / 3,980 m
			
				Pylon/tower
			
						Type:
					
						Reinforced concrete
					
						Height:
					
						182 m
					
				Type of girder
			
						Cable stayed span:
					
						2-I steel girders
					
				Height and width
			
						H:
					
						2.8 m
					
						B:
					
						34 m
					
						Approach Spans:
					
						Twin PSC box girders
					
						H:
					
						3.5 m
					
						B:
					
						15.7 m
					
				Other comments:
			
				8 Lock-Up Devices between pylon and girder
			
				F= 5,000 kN, ± 260 mm stroke
			
						Product:
					
						Alga, Italy
					
				Type of foundation
			
				Concrete foundation
			
				Sea depth at main span
			
				22 m
			
				Vessel navigation channel
			
						Width:
					
						400 m
					
						Clearance for vessels:
					
						62 m
					
				Vessel/Ship traffic
			
				2015
			
				Cable structure
			
				Type, dimension etc. of main cable/stay cable
			
				Parallel strand, 0.6”- 37 ~ 91 strands
			
				Diameter: max. 280 mm
			
				Type, dimension etc. of hangers
			
				Is the cable structure dehumidified
			
				If so, year established
			
				Expansion joints
			
				For the cable stayed bridge (both directions)
			
						Number
					
						4
					
						Type
					
						Modular 2xDS800, DS560 / Finger D480 (replaced in 2015)
					
						Product
					
						Maurer / domestic
					
				Bearings
			
				For the cable stayed bridge (both directions)
			
						Number
					
						10 vertical bearings on each pier. Total 40
					
						Type
					
						Pot bearing
					
						Product
					
						Hyeopseong (domestic)
					
						Number
					
						2 vertical bearings on each pylon. Total 4
					
						Type
					
						Elastomeric bearing
					
						Product
					
						Hyeopseong (domestic)
					
						Number
					
						2 vertical bearings on pier No.40 and 41. Total 4
					
						Type
					
						Pot bearing
					
						Product
					
						Hyeopseong (domestic)
					
				Extent of inspection and frequency
			
				Three gantries for the cable stayed bridge
			
				One under-bridge inspection truck for the approach spans
			
				4 elevators for the pylons
			
				Means of funding ongoing costs
			
				Toll from expressway and national finance

ASAN BAY, SOUTH KOREA

The Seohae Bridge

Opened November 9, 2000

A six-lane system of three types of bridges including this cable-stayed bridge 65 km south of Seoul. It is the longest bridge in South Korea.

The Seohae Bridge Fact Sheet

Last updated: September 21, 2021

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Contact

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Recent News

ASAN BAY, SOUTH KOREA

The Seohae Bridge

Opened November 9, 2000

A six-lane system of three types of bridges including this cable-stayed bridge 65 km south of Seoul. It is the longest bridge in South Korea.

The Seohae Bridge Fact Sheet

Last updated: September 21, 2021

ICSBOA Membership Spotlight

Mackinac BridgeSt. Ignace and Mackinaw City, Michigan, U.S.A.

Governor Mario M. Cuomo BridgeTarrytown, New York, U.S.A.

Bear Mountain BridgeFort Montgomery, New York, U.S.A.

Mid-Hudson BridgePoughkeepsie, New York, U.S.A.

Tatara BridgeSeto Inland Sea, Japan

Forth Road BridgeScotland, UK

Shimotsui-Seto BridgeSeto Inland Sea, Japan

Kita Bisan-Seto & Minami Bisan-Seto BridgesSeto Inland Sea, Japan

Thousand Islands International BridgeSt Lawrence River, Canada/USA

Akashi-Kaikyo BridgeHyogo, Japan

The Farø-Falster BridgeStorstrømmen Strait, Zealand, Denmark

Jiangyin BridgeJiangyin, Jiangsu, China

South Channel BridgeSt Lawrence River, Canada/USA

Golden Gate BridgeSan Francisco, California, U.S.A.

Humber BridgeLincolnshire, East Yorkshire, U.K.

A. Murray MacKay BridgeHalifax, Nova Scotia, Canada

The Seohae BridgeAsan Bay, South Korea

Queensferry CrossingScotland, UK

Angus L. Macdonald BridgeHalifax, Nova Scotia, Canada

Oresund BridgeCopenhagen, Denmark - Malmö, Scania, Sweden

Hitsuishijima & Iwakurojima BridgesSeto Inland Sea, Japan

Clifton Suspension BridgeBristol, North Somerset, U.K.

Tamar BridgePlymouth, Devon, U.K.

Great Belt BridgeGreat Belt, Denmark

Prince Of Wales BridgeSouth West England / South East Wales

Osman Gazi BridgeGulf of İzmit, Turkey

Contact

Links

Recent News

Mackinac Bridge
St. Ignace and Mackinaw City, Michigan, U.S.A.

Governor Mario M. Cuomo Bridge
Tarrytown, New York, U.S.A.

Bear Mountain Bridge
Fort Montgomery, New York, U.S.A.

Mid-Hudson Bridge
Poughkeepsie, New York, U.S.A.

Tatara Bridge
Seto Inland Sea, Japan

Forth Road Bridge
Scotland, UK

Shimotsui-Seto Bridge
Seto Inland Sea, Japan

Kita Bisan-Seto & Minami Bisan-Seto Bridges
Seto Inland Sea, Japan

Thousand Islands International Bridge
St Lawrence River, Canada/USA

Akashi-Kaikyo Bridge
Hyogo, Japan

The Farø-Falster Bridge
Storstrømmen Strait, Zealand, Denmark

Jiangyin Bridge
Jiangyin, Jiangsu, China

South Channel Bridge
St Lawrence River, Canada/USA

Golden Gate Bridge
San Francisco, California, U.S.A.

Humber Bridge
Lincolnshire, East Yorkshire, U.K.

A. Murray MacKay Bridge
Halifax, Nova Scotia, Canada

The Seohae Bridge
Asan Bay, South Korea

Queensferry Crossing
Scotland, UK

Angus L. Macdonald Bridge
Halifax, Nova Scotia, Canada

Oresund Bridge
Copenhagen, Denmark - Malmö, Scania, Sweden

Hitsuishijima & Iwakurojima Bridges
Seto Inland Sea, Japan

Clifton Suspension Bridge
Bristol, North Somerset, U.K.

Tamar Bridge
Plymouth, Devon, U.K.

Great Belt Bridge
Great Belt, Denmark

Prince Of Wales Bridge
South West England / South East Wales

Osman Gazi Bridge
Gulf of İzmit, Turkey