The first place on the list of the most expensive bridges ever built is Hong Kong-Zhuhai-Macau Bridge. After 9 years of construction, the Hong Kong-Zhuhai-Macau Bridge, the world’s longest sea-crossing, has opened to traffic.

The 55km crossing includes 3 cable-stayed bridges and hyperlink roads withinside the 3 towns, decreasing the touring time between Hong Kong and Macau/Zhuhai from an hour’s ferry journey to a 40-minute automobile journey. This is a key initiative of the Chinese government’s plan to power the financial and social integration of the Greater Bay Area which encompasses eleven towns in Southern China including Hong Kong and Macau.

It includes a major bridge in mainland waters collectively with boundary crossing centers and roads that hyperlink 3 locations. The features of the bridge are to fulfill the call for passenger and freight land shipping amongst Hong Kong, the mainland (especially the vicinity of Pearl River West), and Macau, to set up a brand new land shipping hyperlink among the east and west banks of the Pearl River, and to decorate the financial and sustainable improvement of the 3 towns.

Construction costs: $20 billion

Location: Lantau Island, Hong Kong

Starting in 1978, the Great Seto Bridge changed into a definitely enormous painting that took 10 years to finish. With its successful completion, Shikoku changed into at once related to Honshu. The total period of all bridges withinside the collection is about thirteen kilometers. Among bridges combining rail strains and roadways, the Great Seto Bridge nevertheless holds the name of the “world’s longest two-tiered bridge.” From an engineering perspective, the Great Seto Bridge employs the trendy modern-day technology of its time for bridge creation over the ocean. Its use of layout variations — together with the suspension, cable-stayed, and truss bridges — is a captivating element of the Great Seto Bridge achievement.

Great Seto Bridge (Seto Ohashi) is the inclusive call for 6 consecutive bridges connecting 5 islands withinside the Seto Inland Sea — offering gets right of entry to Honshu (Japan’s essential island) and Shikoku (in which Kagawa Pref. is located). If you drive an automobile alongside the bridge, you could see alternating seascapes and landscapes, quiet ocean perspectives, and herbal island scenery. Seto Ohashi Memorial Park is close to the departure factor from Kagawa Prefsite visitors can view the whole collection of bridges from the statement room of Seto Ohashi Tower.

Construction costs: $15.4 billion

Location: 〒762-0071 Kagawa, Sakaide, Yoshimacho, Japan

The 164.8 km lengthy Danyang-Kunshan Grand Bridge connects China with the Beijing–Shanghai High-Speed Railway. The bridge is taken into consideration to be the world’s pick few engineering marvels presently. Linking famous metropolitan towns of China, specifically Shanghai and Nanjing withinside the Jiangsu Province, this overpass bridge is the lifeline of the nation.

The creation of the Danyang-Kunshan Grand Bridge finished in 2010. A strong group of 10,000 men, such as center laborers, engineers, and relaxation professionals, labored tirelessly and dedicatedly to make certain that the creation of the longest bridge in Asia should be withinside the stipulated time frame. It is one of the most expensive bridges ever built. As of June 2011, Danyang-Kunshan Grand Bridge in China held the Guinness World Record for being the world’s longest bridge.

The creation of the Danyang-Kunshan Grand Bridge wasn’t a smooth task. Being a mega dream project, it is anticipated to carry growth in China’s conversation infrastructure. China has enhanced its commercial capacity since early 2000 by planning to assemble many long bridges. To satisfy that ambition, constructing the longest bridge in Asia became the want of the hour. With the development of the Danyang-Kunshan Grand Bridge, China without difficulty overcame its big public and commercial transportation system. This bridge performs a pivotal function to attach the country’s outstanding commercial hubs.

Construction costs: $8.5 billion

Location: Jiangsu, China

The jap span substitute of the San Francisco–Oakland Bay Bridge became a production mission to update a seismically unsound part of the Bay Bridge with a brand new self-anchored suspension bridge (SAS) and 2 viaducts. The bridge is withinside the U.S. country of California and crosses the San Francisco Bay between Yerba Buena Island and Oakland. The span substitute happened between 2002 and 2013, and is the maximum high-priced public works mission in California history, with a very last fee tag of $6.5 billion, a 2,500% value overrun from the unique estimate of $250 million. Originally scheduled to open in 2007, numerous troubles behind schedule the hole till September 2, 2013. With a 258.33 ft (78.74 m), comprising 10 general-cause lanes, it's miles the world's widest bridge in step with Guinness World Records.

The Bay Bridge has predominant sections: the western suspension spans and their technique systems among San Francisco and Yerba Buena Island (YBI) and the systems among YBI and the jap terminus in Oakland. The unique jap segment became composed of a double-balanced cantilever span, 5 through-truss spans, and a truss causeway. This component became a concern after a segment collapsed at some point during the Loma Prieta earthquake on October 17, 1989. The substitute span is engineered to resist the most important earthquake predicted over a 1500-year period, and its miles indicated to ultimate as a minimum of one hundred fifty years with proper maintenance.

Construction costs: $6.5 billion

Location: San Francisco and Oakland, California, U.S.

The Øresund Bridge is an about sixteen km lengthy street and rail hyperlink between Sweden and Denmark. It includes 3 sections: a bridge, a synthetic island, and a tunnel. The bridge money owed for half of the period of the hyperlink (approximately 8 km) with the 204 m excessive pylons assisting the 490 m lengthy bridge span throughout the Flinte channel. This layout is called a cable-stayed bridge. On the bridge, the railway and toll road run on separate ranges with the railway at the lower deck and car visitors at the top deck.

Most of the bridge structures – the bridge piers and bridge spans – have been constructed on land and ultimately towed out to the bridge alignment through a big floating crane. Only the pylons have been forged in situ. Linking the bridge and tunnel, the man-made island of Peberholm, in which the railway and toll road run The hyperlink parallel to every other, its neighbor to the herbal island of Saltholm in addition to the north. four km lengthy, Peberholm changed into produced from the fabric dredged from the Øresund seabed to deal with the bridge piers and the tunnel.

Peberholm was constructed to allow visitors to skip from the bridge, in which rail and car visitors run on ranges, to the tunnel in which visitors run at the identical level. The four km immersed tunnel changed into constructed through concrete factors forged on land and ultimately towed out and reduced right into a trench dredged withinside the Øresund sea bed.

Construction costs: $6.5 billion

Location: Copenhagen, Denmark, and Malmö, Sweden

The next place on the list of the most expensive bridges ever built is the Great Belt Bridge (or Great Belt Fixed Link). It is a visitor connection between Danish islands Zealand and Funen. Great Belt Fixed Link is fabricated from a suspension bridge and railroad tunnel that connects Zealand with the island Sprogø and a container girder bridge that connects Sprogø with Funen. Great Belt Fixed Link is designed by Dissing+Weitling.

The Great Belt Fixed Link is one of the world’s biggest bridges, and riding throughout the Great Belt offers you a feel of the large attempt that went into its creation. The Eastern Bridge (a suspension bridge), the Western Bridge (a low-degree bridge), and the Eastern Tunnel for the railway are all a part of the complex (an undersea bored tunnel).

The complete 18-kilometer hyperlink between Zealand and Funen changed between 1988 and 1998. The bridge sees extra than 27,000 cars every day on average, with as many as 40,000 vehicles consistent with the day on aggravating summertime season days for the duration of the top season.

Construction costs: $6.28 billion

Location: Storebæltsbroen, 4220 Korsør, Denmark

The Akashi Kaikyo Bridge is a suspension bridge that hyperlinks the town of Kobe on the Japanese island of Honshu to Iwaya on Awaji Island. It is a part of the Kobe-Awaji-Naruto Expressway and crosses the busy and turbulent Akashi Strait (Akashi Kaikyō in Japanese). It changed into finished in 1998 and has the second-longest crucial span of any suspension bridge withinside the world, at 1,991 meters (6,532 ft). It is one of the key hyperlinks of the Honshū–Shikoku Bridge Project, which created 3 routes throughout the Inland Sea.

The Akashi Kaikyo Bridge stands in a seismically risky area that still reports a number of Earth’s maximum extreme storms. Thus, engineers used a complicated machine of counterweights, pendulums, and steel-truss girders to permit the bridge to face up to winds of as much as 290 km (a hundred and eighty miles) consistent per hour. Despite those buffers, the bridge can amplify and settle up to two meters (6.5 feet) on an unmarried day. The demanding situations posed with the aid of using the bridge stimulated improvements in the wind tunnel and cable fabrication technology.

Construction costs: $4.96 billion

Location: 4 Higashimaikocho, Tarumi Ward, Kobe, Hyogo 655-0047, Japan

The Evergreen Point Floating Bridge stretches throughout Lake Washington, connecting Seattle to its jap suburbs. When it opened in 2016, it at once entered the document books as each the longest and widest floating bridge withinside the world.

In April 2016, the brand new Evergreen Point Floating Bridge opened to traffic, wearing Washington State Route 520 throughout Lake Washington. It changed construction to update the preceding Evergreen Point Floating Bridge, constructed in 1963 and closed in April 2016, which formerly held the identity because the longest floating bridge withinside the world.

Supported by seventy-seven pontoons, the brand new Evergreen Point Floating Bridge has a span of 7,710 toes (2,350 m), a hundred thirty toes longer than the bridge it replaced. As such, it presently holds the document because it is the longest floating bridge withinside the world. And with its midpoint measuring 116 toes (35 m) throughout, it’s additionally the world’s widest floating bridge stretches throughout Lake Washington, connecting Seattle to its jap suburbs.

Construction costs: $4.5 billion

Location: Seattle, Washington

The Kerch Strait Bridge is a 19km parallel road-rail bridge connecting the Kerch Peninsula of Crimea, Ukraine, to the Taman Peninsula of Krasnodar Krai, Russia. It is one of the largest bridges being evolved withinside the country. Construction of the bridge commenced in 2015. The dual carriageway opened in May 2018, even as the rail line is predicted to be finished in 2019. The bridge is predicted to be utilized through as many as 40,000 motors and forty-seven pairs of trains a day. This is one of the most expensive bridges ever built in Russia and also in the world.

Traffic needed to go through the Kerch Strait by boat or pressure through Ukraine to attain Crimea from the Russian mainland earlier than the bridge changed into finished. Without Ukraine’s agreement, a phase of a railway opened over the bridge in December 2019, which the European Union criticized as an invasion of Ukraine’s territory. Russia expects it's going to bring hundreds of thousands of automobiles and rail guests and hundreds of thousands of heaps of shipment every year. Previously, all automobile site visitors surpassed over the Kerch strait via way of means of ferry or via way of means of passing thru Ukraine.

Construction costs: $3.7 billion

Location: Krasnodar Krai

In June 2019, Montreal celebrated the completion of the 3.4km Samuel De Champlain Bridge, one of the most important and busiest bridges in North America. Crossing the Saint Lawrence River and its worldwide delivery channel, it's miles an essential thoroughfare for each item and people, accommodating in excess of fifty million crossings and facilitating CAD$20 billion of exchange each year. Built through a public-personal partnership (PPP) among the Government of Canada (through Infrastructure Canada) and the Signature at the Saint Lawrence Group, it's miles a landmark shape forming a gateway to the town of Montreal.

The production of the bridge changed into a part of the CAD$4.24 Samuel De Champlain Bridge Corridor Project, the main city toll road development undertaking withinside the Montreal metropolitan location and one of the most important infrastructure schemes in North America. The undertaking additionally encompassed the development of the 500m Île des Sœurs Bridge and the renewal of 8.5km of the toll road; there's a devoted public shipping hall incorporated, in addition to a superior community of pedestrians and biking paths all through the hall. Arup additionally supplied futureproofing for a probable mild rail transit device for the hall.

Construction costs: $3.4 billion

Location: Brossard, Quebec, Canada