Skyscrapers are reaching for new record heights, huge tunnels are establishing new transportation connections, and colossal bridges are spanning greater distances than ever before.

Around the world, gigantic engineering and infrastructure projects are opening up or are closing in on their completion.

So we surveyed those finished within the last three years and those under construction to find the most jaw-dropping dams, buildings, and big machines on Earth.









http://www.popularmechanics.com/technology/g2121/the-worlds-25-most-impressive-megaprojects/

http://www.businessinsider.com/the-worlds-largest-megaprojects-2017-1?IR=T

Explorers:
Skyscrapers are reaching for new record heights, huge tunnels are establishing new transportation connections, and colossal bridges are spanning greater distances than ever before.

Around the world, gigantic engineering and infrastructure projects are opening up or are closing in on their completion.

So we surveyed those finished within the last three years and those under construction to find the most jaw-dropping dams, buildings, and big machines on Earth.

booked

Port Mann Bridge, Vancouver, B.C.



Time to build: 6years.

Cost to build: $1.93 billion.



The widest bridge in the world (until the Bay Bridge's east span recently opened), the bridge east of Vancouver, B.C., which opened in 2012, remains the second-longest bridge in North America.

The cable-stay bridge uses an impressive 288 cables to reach a total bridge length of 6,866 feet.

Make I Sidon here dey wait

Three Gorges Dam, China.



Time to build: 17 years.

Cost to build: $22 billion.



We can't even comprehend the amount of concrete needed to construct the world's largest dam.

Standing on China's Yangtze River, this 17-year, $59 billion project measures 595 feet tall, 131 feet wide, and more than 7,600 feet long, with 32 main turbines producing electricity.

Nice!

One World Trade Center, New York.



Time to build: 7 years.

Cost to build: $3.8 billion.



The tallest building in the Western Hemisphere rises a symbolic 1,776 feet above New York City.

The largely steel structure also includes a concrete core that provides additional security and strength.

Aizhai Suspension Bridge, China.


Time to build: 5 years.

Cost to build: $600 million.




The world's highest bridge, connecting two tunnels in China, is also one of the world's longest suspension bridges. Opened in 2012, the bridge sits 1,200 feet over the Dehang Canyon and spans a tower-to-tower distance of 3,858 feet.

The mountains on either side anchor the suspension towers.

Marmaray Tunnel, Turkey.



Time to build: 9 years.

Cost to build: $4.5 billion.




It took nine years and $4.5 billion to build, but the 47-mile underwater railway tunnel connects the European and Asian sides of town, giving Istanbul a new rail line into and out of the city when it opened in 2013.

FFR Grand Stade, Paris.



Time to build: 4 years.

Cost to build: $552million.



Retractable roofs are nice.

Retractable fields, too.

Put them together and add 82,000 seats and the rugby federation of France will have a nearly mobile stadium on a giant scale located south of Paris.

The two million-square-foot venue will become one of the largest stadiums in all of Europe, including serving as the largest roofed entertainment venue. And one of the most moving.

And what about dangote refinery in Lekki, costs 14 billion dollars. Is that not something

Jubail Industrial City, Saudi Arabia.


Time to build: 10 years.

Cost to build: $11billion.




The ongoing expansion of a city built from the sand up starting in the 1970s required plenty of logistical planning.


Jubail is a city in the Eastern province on the Persian Gulf coast of Saudi Arabia.

It is the host of the largest industrial city in the Middle East.

It is also home to the Middle East's largest and world's fourth largest petrochemical company.

It has the world's largest IWPP (Independent Water and Power Project) producing 2743.6 MW of electricity and 800,000 m3 of water daily.

Jubail Industrial City is the largest civil engineering project in the world today.


The project, located in the Eastern Province of Saudi Arabia, is undergoing an $11 billion expansion to update all things industrial.

The four-phase project over nearly eight square miles includes eight blocks of industrial plants, four blocks of petrochemical industry, three blocks of support industries and four blocks of aluminum and other smelting plants.

And that doesn't even include removing hills, building tunnels, expanding fiberoptics, building highways and using seawater for daily cooling.

London Crossrail, London.



Time to build: 11 years.

Cost to build: $23 billion.



London continues to grow underground.

Eight tunneling machines recently wrapped up 26 new miles of tunnel for new subway track that will connect 40 stations including 10 completely new ones to improve transportation in England's largest city.

Hyderabad Metro Rail, India.


Time to build: 14 years.


Cost to build: $2 billion.

It will take all of the $2 billion-plus to create a new, elevated Hyderabad Metro Rail system in India.

With initial phases nearing opening, the 46-mile light rail system will modernize an entire region.

Elevated stations appears every kilometer and are expected to handle 15 million riders, with trains arriving at stations every three to five minutes.

With trains running at an average of over 20 miles per hour, all technology track, stations and support will run above ground.

Etihad Rail, United Arab Emirates.


Time to build: Unknown.


Cost to build: $11 billion.



Rail may soon be the fastest and easiest way to get around the United Arab Emirates.

The three-phased Etihad Rail project, which now has the first phase wrapped, plans to connect 745 miles of new rail across the country to link with Saudi Arabia, Qatar, Oman, Bahrain, and Kuwait.

Al Maktoum International Airport.


Cost to build: $82 billion.



This airport in Dubai will be fully operational by 2018.

It will be the world’s largest in terms of size and passenger volume so big that four jets will be able to land simultaneously.

It will allow for 220 million passengers per year to fly out of the desert.

The shear scope of an airport spread over 21 square miles will accommodate 100 Airbus A380 aircrafts at any given time.

I done show ooo.. Make chilax here naw.. Explo on da beat

explorers u too much

I weep for Nigeria



Our politicians have these money in their accounts oo

paschal47:
I weep for Nigeria



Our politicians have these money in their accounts oo

Hahaha

They have so much money in their accounts but nothing in their brains

Magnificent.

Quantity Surveying makes all easy in the construction industry... Nigeria should utilise the Quantity Surveyors for Accurate Estimates and we would get over with corruption in that sector a bit.....

Saudi is a pride of development.

Explorers:
Al Maktoum International Airport.


Cost to build: $82 billion.



This airport in Dubai will be fully operational by 2018.

It will be the world’s largest in terms of size and passenger volume so big that four jets will be able to land simultaneously.

It will allow for 220 million passengers per year to fly out of the desert.

The shear scope of an airport spread over 21 square miles will accommodate 100 Airbus A380 aircrafts at any given time.

check the cost again please.

sapientia:


check the cost again please.

Total cost from day one, learnt the airport has been under construction for over a decade.

Expansion.

Explorers:


Total cost from day one, learnt the airport has been under construction for over a decade.

Expansion.

Ok.. if I can get the source

Wowing

make i book space

I am depressed!

I'm concerned about something though. . .if these were the costs as at then, did they factor in inflation? If yes, then we have a lot to learn from them. A whole lot to learn.

In my country, no be 1km = N1B or so?

Explorers:
Hyderabad Metro Rail, India.


Time to build: 14 years.


Cost to build: $2 billion.

It will take all of the $2 billion-plus to create a new, elevated Hyderabad Metro Rail system in India.

With initial phases nearing opening, the 46-mile light rail system will modernize an entire region.

Elevated stations appears every kilometer and are expected to handle 15 million riders, with trains arriving at stations every three to five minutes.

With trains running at an average of over 20 miles per hour, all technology track, stations and support will run above ground.

Someone remind me how much Rivers monorail project is. . .

Also add the planned new Egypt capital city and the new rail transportation Chūō Shinkansen Japan is planning that costs about $82B (9 trillion yen) or so and is planning to complete the first phase between Tokyo and Nagoya by 2027.

Explorers:
Jubail Industrial City, Saudi Arabia.


Time to build: 10 years.

Cost to build: $11billion.




The ongoing expansion of a city built from the sand up starting in the 1970s required plenty of logistical planning.


Jubail is a city in the Eastern province on the Persian Gulf coast of Saudi Arabia.

It is the host of the largest industrial city in the Middle East.

It is also home to the Middle East's largest and world's fourth largest petrochemical company.

It has the world's largest IWPP (Independent Water and Power Project) producing 2743.6 MW of electricity and 800,000 m3 of water daily.

Jubail Industrial City is the largest civil engineering project in the world today.


The project, located in the Eastern Province of Saudi Arabia, is undergoing an $11 billion expansion to update all things industrial.

The four-phase project over nearly eight square miles includes eight blocks of industrial plants, four blocks of petrochemical industry, three blocks of support industries and four blocks of aluminum and other smelting plants.

And that doesn't even include removing hills, building tunnels, expanding fiberoptics, building highways and using seawater for daily cooling.

this is what I call proper use of oyel money. . . Plan for the future because new and better sources of energy will always come up so the one you boast of having may soon be phased out. . . We need a planning and maintenance culture and visionary leaders.

C

Explorers:
One World Trade Center, New York.



Time to build: 7 years.

Cost to build: $3.8 billion.



The tallest building in the Western Hemisphere rises a symbolic 1,776 feet above New York City.

The largely steel structure also includes a concrete core that provides additional security and strength.

This must be the centre that was attacked by terrorists in September 2011. Rebuilding the part that was attacked shouldn't take long.