
Top 10 longest water bridges in the world.
This list contains all the longest bridges on the water, including bridges built on rivers, seas, lakes and swamps.
This list is ranked according to the bridge’s total length, including the length of the tunnel and the length of a small number of land roads (for connecting bridge sections).
To maintain the list’s accuracy, this list will be updated in real-time.
10Donghai Bridge

Donghai Bridge is located in Hangzhou Bay, Zhejiang Province, China. It connects Shanghai and Yangshan Deepwater Port.It is also one of the key supporting projects of Yangshan Deepwater Port (Part of Shanghai Port).
The Donghai Bridge was built on June 26, 2002. On May 25, 2005, the Donghai Bridge was fully opened and a ceremony was held. On December 10, 2005, the Donghai Bridge was officially opened to traffic.
The total length of the Bridge is 32.5 kilometers, the main bridge is 25.3 kilometers, the deck is a two-way six-lane highway, the design speed is 80 kilometers per hour, and the total investment of the project is 7.11 billion yuan (about 1.1 billion US dollars).
Donghai Bridge Data
- Country
- China
- Location
- Shanghai and Yangshan Port
- Official name
- 东海大桥
- Other name
- East Sea Bridge
- Cost
- 7.1 billion yuan (US $1.1 billion )
- Status
- In use
- Maintained by
- Shanghai Chengtou Donghai Bridge Management Co., Ltd.
- Design life
- 100 years
- Began
- Jun-26, 2002
- Construction end
- May-25, 2005
- Opened
- Dec-10, 2005
- Total Duration
- 3 years
- Length
- 32.5 km (20.2 mi)
- Bridge section length
- 32 km (19.6 mi)
- Width
- 31.5 m/103 ft (double bridge), 15.25 m/51 ft (single bridge)
- Longest span
- 420 m (1,380 ft)
- Design type
- Beam bridge with cable-stayed section
- Bridge type
- Cross sea bridge
- Crosses
- Hangzhou Bay(On East China Sea)
- Road scale
- 6 lanes
- Design speed
- 80 km / h
- Toll
- ¥20-45 Yuan(About $3-7)
9Runyang Yangtze River Bridge

Runyang Yangtze River Bridge is located on the Yangtze River in Jiangsu Province, China. It connects Zhenjiang City and Yangzhou City and is called Runyang Bridge for short.
Construction of the Runyang Yangtze River Highway Bridge started on October 20, 2000, and was completed on June 1, 2004. The main project was basically completed on February 2, 2005, and officially opened to traffic on April 30, 2005.
The total length of the bridge is 22.2 mi (35.7 km), the deck is a two-way 6-lane highway, and the design speed is 100 km/h; it cost 5.8 billion yuan (about US $700 million).
Runyang Yangtze River Bridge Data
- Country
- China
- Region
- East Asia
- Status
- In use
- Official name
- 润扬长江公路大桥
- Other name
- Runyang Bridge, Runyang Yangtze River Highway Bridge
- Location
- Between Zhenjiang City and Yangzhou City, Jiangsu, China
- Maintained by
- Jiangsu Runyang Bridge Development Co., Ltd.
- Cost
- 5.8 billion yuan (about US $700 million)
- Design life
- 100
- Began
- Oct-20, 2000
- Construction end
- Feb-02, 2005
- Opened
- Apr-30, 2005
- Total length
- 22.2 mi ( 35.7 km )
- main bridge length
- 4.5 mi ( 7.2 km )
- Tall (tower)
- 707 ft ( 215.6 m )
- Width
- 107 ft ( 32.5 m )
- Longest span
- 4888 ft ( 1490 m )
- Design type
- Suspension bridge, Cable-stayed bridge
- Design speed
- 100 km / h
- Road scale
- 6 lanes
- Crosses
- Yangtze River
8Hangzhou Bay Bridge

Hangzhou Bay Bridge is located in Hangzhou Bay, Zhejiang Province, China. It is a 36 km (22.4 mile) highway bridge across the sea. It connects Jiaxing City and Ningbo City in Zhejiang Province.
The total length of the Hangzhou Bay Bridge is 36 kilometers, and the bridge section is 35.7 kilometers. The bridge deck is a two-way six-lane highway with a design speed of 100 kilometers per hour.
There is a beautiful artificial offshore platform on the bridge called "Haitian Yizhou", which is located in the middle of the Hangzhou Bay Bridge, 1.7 kilometers south of the South Channel.
The total investment of Hangzhou Bay Bridge was 13.8 billion yuan (US $ 2.1 billion) in 2003.
Hangzhou Bay Bridge Data
- Country
- China
- Location
- Between Jiaxing City and Ningbo City in Zhejiang Province
- Official name
- 杭州湾跨海大桥
- Cost
- 13.8 billion yuan (US $2.1 billion )
- Status
- In use
- Maintained by
- Hangzhou Bay Bridge Development Co., Ltd.
- Design life
- 100 years
- Began
- Jun-08, 2003
- Construction end
- Jun-26, 2007
- Opened
- May-01, 2008
- Total Duration
- 4 years
- Length
- 22.4 mi (36 km)
- Bridge section length
- 22.2 mi (35.7 km)
- Width
- 33 m (108 ft)
- Longest span
- 448 m (1,470 ft)
- Design type
- Cable-stayed bridge
- Bridge type
- Cross sea bridge
- Crosses
- Hangzhou Bay
- Road scale
- 6 lanes
- Design speed
- 100 km / h
- Toll
- ¥80-320 Yuan(About $11-43)
7Manchac Swamp Bridge

Manchac Swamp Bridge (Other name: I-55 Manchac Swamp Crossing) is located on Manchac Swamp between Lake Maurepas and Lake Pontchartrain, close to Lake Pontchartrain. in Louisiana, USA, it is a twin concrete trestle bridge.
The bridge was built in the late 1970s and Opening in 1979.
With a total length of 22.80 miles (36.69 kilometers), it is one of the longest water bridge in the world and one of the longest bridges on the interstate highway system.The total width of the 2 bridges plus Gap between bridges is estimated to be close to 95 meters (312 ft).
Its piles were driven 250 feet (76 m) beneath the swamp and with the cost of the span being $7 million per mile to complete.About US $160 million total in 1975.
Manchac Swamp Bridge Causeway Data
- Country
- America
- Location
- St. John the Baptist Parish / Tangipahoa Parish, Louisiana, USA
- Official name
- Manchac Swamp Bridge
- Other name
- I-55 Manchac Swamp Crossing
- Cost
- US $160 million
- Status
- In use
- Maintained by
- Louisiana Department of Transportation and Development
- Began
- Late 1970s
- Opened
- 1979
- Length
- 22.8 miles (36.7 km)
- Length over water
- 22.8 miles (36.7 km)
- Width
- 95 m/312 ft(2 bridges + Gap between bridges)
- Bridge type
- Lake(Swamp) bridge
- Crosses
- Manchac Swamp
- Road scale
- 4 lanes
6Chesapeake Bay Bridge–Tunnel

Chesapeake Bay Bridge–Tunnel is a 17.6-mile (28.3 km) bridge–tunnel crossing at the mouth of the Chesapeake Bay, the Hampton Roads harbor, and nearby mouths of the James and Elizabeth Rivers in the U.S.state of Virginia.
The bridge–tunnel originally combined 12 miles (19 km) of trestle, two 1-mile-long (1.6 km) tunnels, four artificial islands, four high-level bridges, approximately 2 miles (3.2 km) of causeway, and 5.5 miles (8.9 km) of northeast and southwest approach roads—crossing the Chesapeake Bay and preserving traffic on the Thimble Shoals and Chesapeake dredged shipping channels leading to the Atlantic.
The original 2-lane bridge-tunnel facility was opened in April 1964, took 4 years to build, and it cost $200 million for planning, design, right-of-way, and construction.After 2 expansions, Chesapeake Bay Bridge + Shoal Tunnel + Trestle total cost US $1.15 billion.
Chesapeake Bay Bridge–Tunnel Data
- Country
- America
- Location
- Virginia Beach and Norfolk, Chesapeake, Portsmouth to Cape Charles, Virginia, U.S.
- Official name
- Lucius J. Kellam Jr. Bridge–Tunnel
- Cost
- Chesapeake Bay Bridge + Shoal Tunnel + Trestle (0.2b + 0.75b + 0.19b = $ 1.15 billion)
- Status
- In use
- Maintained by
- Chesapeake Bay Bridge and Tunnel Commission
- Began
- Oct, 1960
- Opening date
- April 15, 1964 (northbound) April 19, 1999 (southbound)
- Total Duration
- 4 years
- Length
- 23 miles (37 km)
- Bridge section length
- 17.6 miles (28.3 km)
- Deck height
- 75 feet (22.9 m) (North Channel) 40 feet (12.2 m) (Fisherman Inlet)
- Design type
- Fixed link: low-level trestle, single-tube tunnels, artificial islands, truss bridges, high-level trestle
- Bridge type
- Cross sea bridge
- Crosses
- Chesapeake Bay
- Road scale
- 4 lanes (4 on bridges, 2 in tunnels)
5Great Seto Bridge

The Great Seto Bridge is a series of double deck bridges connecting Okayama and Kagawa prefectures in Japan across a series of five small islands in the Seto Inland Sea.
Built over the period 1978–88, it is one of the three routes of the Honshū–Shikoku Bridge Project connecting Honshū and Shikoku islands, and the only one with railroad connections included.
The Bridge is 37.3 kilometers long and the sea part is 13.1 kilometers. It consists of 3 cable bridges, 2 cable-stayed bridges and 1 truss bridge.With 13.1 kilometers (8.1 mi) two-tiered bridge, it ranks as one of the world's longest two-tiered bridge system.
The bridges carry two lanes of highway traffic in each direction (Seto-Chūō Expressway) on the upper deck and one railway track in each direction (Seto-Ōhashi Line) on the lower deck.
The project took ten years to complete at a cost of US$7 billion; 3.646 million cubic meters (128.8 million cubic feet) of concrete and 705,000 tons of steel were used in construction. A total of 70 steel rails, 290,600 kilometers of steel cables were used .
Great Seto Bridge Data
- Country
- Japan
- Location
- Between Honshū and Shikoku
- Official name
- 瀬戸大橋,Seto Ōhashi
- Cost
- US $7 billion
- Status
- In use
- Maintained by
- Honshu–Shikoku Bridge Authority
- Began
- Oct-10, 1978
- Opening date
- Apr-10, 1988/dd>
- Total Duration
- 9 years 6 months
- Length
- 37 km (23 mi)
- Bridge section length
- 13.1 km (8.1 mi)
- Design type
- Double-decked bridge system
- Bridge type
- Cross sea bridge
- Crosses
- Seto Inland Sea
- Road scale
- 4 lanes (upper), 2 rail lines (lower).
4Lake Pontchartrain Causeway

Lake Pontchartrain Causeway is located on Lake Pontchartrain in southern Louisiana, USA.The Lake Pontchartrain Causeway.
It consists of 2 parallel bridges.The longer of the two bridges is 23.83 miles (38.35 km) long. The southern terminus of the causeway is in Metairie, Louisiana, a suburb of New Orleans. The northern terminus is at Mandeville, Louisiana.The bridges are supported by 9,500 concrete pilings.
The two bridges feature a bascule, which spans the navigation channel 8 miles (13 km) south of the north shore.
Lake Pontchartrain Causeway has 2 times construction records. The two constructions were separated by 14 years. It cost 76 million US dollars total(between 1955-1969).
Lake Pontchartrain Causeway Data
- Country
- America
- Location
- Metairie and Mandeville, Louisiana, U.S.
- Constructed by
- Louisiana Bridge Company(southbound) Prestressed Concrete Products,Inc.(northbound)
- Cost
- $76 million(2 times)
- Status
- In use
- Maintained by
- Causeway Commission
- Began
- May-23, 1955(southbound) Jun, 1967(northbound)
- Opened
- Aug-30, 1956(southbound) May 10, 1969(northbound)
- Total Duration
- 3 years total(2 times)
- Length
- 25 mi (38.5 km)
- Bridge section length
- 25 mi (38.5 km)
- Width
- 8.5 m (27.9 ft)
- Deck height
- 4.7 m (15 ft)
- Design type
- Low-level trestle with mid-span bascule
- Bridge type
- Lake bridge
- Crosses
- Lake Pontchartrain
- Road scale
- 4 lanes
- Toll
- $5.00 (southbound)
3Jiaozhou Bay Bridge

Jiaozhou Bay Bridge is located Jiaozhou Bay in China. It is a cross-sea channel in Huangdao District, Chengyang District, Licang District and Jiaozhou City in Qingdao City, Shandong Province, China.Jiaozhou Bay Bridge also called Qingdao Bay Bridge.
The Bridge has a total length of 42.23 kilometers and a bridge length of 31.630 kilometers; the bridge deck is a two-way six-lane highway with a design speed of 80 kilometers per hour.
It transects Jiaozhou Bay, which reduces the road distance between Qingdao and Huangdao by 30 km (19 mi), compared with the expressway along the coast of the bay, reducing travel time by 20 to 30 minutes.
The total investment is 9.53 billion yuan (about 1.5 billion US dollars).
Jiaozhou Bay Bridge Data
- Country
- China
- Location
- Jiaozhou Bay, Qingdao, Shandong Province, China
- Official name
- 胶州湾大桥
- Other name(s)
- 青岛海湾大桥
- Cost
- 9.5 billion yuan (US $1.5 billion )
- Status
- In use
- Maintained by
- Shandong Expressway Group Co., Ltd.
- Design life
- 100 years
- Began
- Dec-26, 2006
- Opening date
- Jun-30, 2011
- Total Duration
- 5 years
- Length
- 26.2 miles (42.2 km)
- Bridge section length
- 19.7 miles (31.6 km)
- Width
- 35 m (115 ft)
- Deck height
- 148 ft (45 m)
- Longest span
- Cangkou Waterway Bridge: 260 m (850 ft)
- Design type
- Cable-stayed bridge, suspension bridge
- Bridge type
- Cross sea bridge
- Crosses
- Jiaozhou Bay
- Road scale
- 6 lanes
- Design speed
- 80 km / h
2Sheikh Jaber Al-Ahmad Al-Sabah Causeway

Sheikh Jaber Al-Ahmad Al-Sabah Causeway is located in Kuwait in the Middle East. It is a super sea-crossing bridge built in the Gulf of Kuwait. It connects Kuwait City and Madinat al-Hareer.
The total length of the bridge project is 30.1 mi (48.5 km ). Construction began on November 3, 2013 and opened on May 1, 2019. The construction period is about 4 years. A total of 903 million Kuwaiti dinars (US $3 billion) were spent.
Sheikh Jaber Al-Ahmad Al-Sabah Causeway Data
- Country
- Kuwait
- Region
- Western Asia
- Status
- In use
- Official name
- جسر الشيخ جابر الأحمد الصباح
- Other name
- Sheikh Jaber Al-Ahmad Bridge, Kuwait Bay Bridge, Jaber link Doha Bridge
- Location
- Kuwait City and Silk City, Kuwait
- Owner
- Ministry of Public Works
- Contractor
- Hyundai Engineering & Construction
- Designer
- Systra
- Cost
- 903 million Kuwaiti dinars ( US $3 billion )
- Design life
- 100
- Began
- Nov-03, 2013
- Opened
- May-01, 2019
- Total Duration
- 4
- Total length
- 30.1 mi ( 48.5 km )
- Tall (tower)
- 495 ft ( 151 m )
- Length over water
- 21.7 mi ( 34.9 km )
- Bridge section length
- 23 mi ( 37 km )
- Width
- 56*2 ft ( 17*2 m )
- Deck height
- 75 ft ( 23 m )
- Longest span
- 581 ft ( 177 m )
- Design type
- Beam bridge
- Road scale
- 6 lanes
- Crosses
- Kuwait Gulf
1Hong Kong-Zhuhai-Macau Bridge

The Hong Kong-Zhuhai-Macau Bridge is a bridge-tunnel project in China that connects Hong Kong, Guangdong Zhuhai and Macau, and is located in the Lingding Ocean area of the Pearl River Estuary in Guangdong Province, China.
The construction of the Hong Kong-Zhuhai-Macau Bridge commenced on December 15, 2009; the main project was completed on July 7, 2017.
The total length of the bridge and tunnel is 55 kilometers, of which the bridge length is 41.6 kilometers, and the main bridge length has reached 29.6 kilometers.The bridge deck is a two-way six-lane highway with a design speed of 100 km / h.
The total investment of the project is 126.9 billion yuan(US $18.8 billion).
Hong Kong–Zhuhai–Macau Bridge Data
- Country
- China
- Location
- Pearl River Delta, Guangdong Province
- Official name
- 港珠澳大桥
- Cost
- 127 billion yuan (US$18.8 billion)
- Status
- In use
- Design life
- 120 years
- Official website
- HZMB Official website
- Began
- Dec-15, 2009
- Opening date
- Oct-24, 2018
- Total Duration
- 8 years
- Length
- 55 km (34 mi)
- Bridge section length
- 25.8 mi /41.6 km
- Width
- 33.1 m (109 ft)
- Design type
- Hybrid cable-stayed, suspension bridge
- Bridge type
- Cross sea bridge
- Crosses
- Pearl River Estuary, Lingding Channel, Jiuzhou Channel.
- Road scale
- 6 lanes