1. Al Maktoum Airport, Dubai
Other airports do not prepare you for the scale of Dubai’s Al Maktoum International Airport, which extends over more than 21 square miles. The facility is designed to handle 200 wide-body aircraft at a time. The airport’s second expansion phase alone has an estimated cost of more than $32 billion.
2. Jubail II,Saudi Arabia
This 22-year long industrial city project began its second phase in 2014 with an $11 billion expansion.When completed, it will comprise at least 100 industrial plants, an 800,000 cubic meter desalination plant, miles of railways, roads and highways, and an oil refinery producing at least 350,000 barrels per day. The entire project is slated to be finished in 2024.
Walt Disney World can fit three times inside this complex. With 278 square kilometers, the $64 billion Dubailand will have six parts: theme parks, sports venues, eco-tourism, health facilities, science attractions, and hotels. It will also have the world’s largest hotel with 6,500 rooms and a 10 million square foot mall. The project is scheduled for completion is 2025.
4. International Space Station
The ISS circles the earth every 92 minutes. Created by a consortium of of 15 nations and 5 space agencies, the ISS has currently scheduled construction costs exceeding $60 billion. The eventual cost of the space station and its contemplated expansions could exceed $1 trillion, by which point it could become a habitat for up to one million off-planet occupants.
5. South-to-North Water Transfer Project,China
The North of China is home to almost 50 percent of China’s population, but has only about 20 percent of the country’s water resources. To remedy this imbalance, China has funded construction of three huge canals, each more than 600 miles long and carrying water to the North from China’s three largest rivers. The project has a 48 year construction schedule. When completed it will supply 44 billion cubic meters of water each year.
6. London Crossrail Project
The world’s first underground continues to grow, adding 26 miles of tunnel connecting 40 stations. The estimated cost of construction is $23 billion. The project is scheduled for completion in phases, with the first new track went into service in 2018 and all remaining tracks in service by 2020.
7. Three Gorges Dam, China
The world’s largest dam is a mile and a half long and about 60 stories high. The $59 billion dollar Yangtze River project was completed and put into service in 2003. Most extremely large construction projects have their detractors, but Three Gorges has been particularly criticized for displacing about 1.5 million persons and destroying hundreds of miles of viable farmland. Its electrical generation capacity is more than eight times greater than Hoover Dam, but still supplies only two or three percent of China’s 2016 energy needs.
8. Sellafield Nuclear Site,England
Covering over 700 acres, this is the U.K.’s primary nuclear-fuel reprocessing facility. with construction costs exceeding $15 billion. One of its primary activities is the reprocessing of Magnox, a nuclear fuel, from UK nuclear power stations. Not surprisingly, the site has its detractors, among them New Scientist, an anti-nuclear research publication, which has claimed that “huge pools of mystery sludge” and other hazards are potentially explosive, a claim that Sellafield’s management disputes.
9. Beijing Airport, China
Beijing International Airport will eventually surpass Dubai’s Al Maktoum Airport in cost, total square miles and passenger and plane capacity. The airport’s first phase was completed in time for the 2008 Olympiad. Further expansion is scheduled for completion by 2025. Terminal 1, designed by Zaha Hadid, incorporates a number sustainable design concepts in a futuristic building envelope.
10. Great Man-Made River Project, Libya
Libya has been working on the “Great Man-Made River” (GMR) project since 1985. It is the largest irrigation project in the world. When completed, it will irrigate more than 350,000 acres of arable land and will substantially increase available drinking water in most of Libya’s urban centers. The water source for the project is the underground Nubian Sandstone Aquifer System. The project is scheduled for completion in 2030.
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