With a capacity for 2.7 million cubic meters of water and an investment of US$ 5 billion, the lake in Trojena redefines construction in the Neom megaproject, which includes a ski village, submersible tunnels, and futuristic attractions with a total investment of £1.2 trillion.
An artificial lake in the middle of the desert, surrounded by futuristic attractions and integrated into a mountain resort. Sounds like a movie scene, right? But this is reality in Saudi Arabia, where a US$ 5 billion lake is under construction as part of the Neom megaproject, valued at US$ 1.5 trillion. Let’s explore this impressive work that promises to revolutionize engineering and tourism.
The Ambitious Construction of the Lake in Trojena
The lake, extending 2.7 kilometers, will be the largest architecturally constructed body of water in Saudi Arabia. Located in the Trojena mountain resort, it will cover an area of 1.5 km². To support this grandeur, three dams are being built, including one that is 145 meters tall and 475 meters long.
These dams will have the capacity to hold 2.7 million cubic meters of water, ensuring the supply and functionality of the lake. The structure will connect different areas through underwater tunnels and impressive landscapes.
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Without a blueprint, without an engineer, and using scrap from the dump, a father spends 15 years building an 18-room castle for his daughter, featuring tram tracks, 13 fireplaces, and over 700 m², which may now be demolished.
The construction is the responsibility of the Italian company Webuild, which signed a contract for US$ 4.63 billion. More than 10,000 people are directly involved in the project, reflecting its magnitude and complexity. The company will also be responsible for developing “The Bow,” a futuristic structure that will house a hotel, residential areas, and an imposing atrium.
The Importance of Trojena in the Neom Megaproject
Trojena will host the 2029 Asian Winter Games, a milestone that reinforces the country’s commitment to economic diversification and luxury tourism. The site’s infrastructure will include 35 kilometers of ski slopes, resorts, and spaces for sports activities.
In addition to the lake, Trojena will offer a ski village, an amphitheater with a capacity for 3,000 people, and an island dedicated to diving and botanical walks. With completion expected by 2026, it aims to attract 700,000 annual tourists by 2030.
Engineering and Sustainability in the Project
Sustainability is one of the pillars of construction. All excavated rock to form the lake will be reused for lining the bed and constructing the dams. This approach reflects a commitment to minimizing environmental impacts.
With the lake as a centerpiece, Trojena will position itself as a global destination for sustainable tourism. Job creation and investment in cutting-edge technology will drive the regional and global economy.
The Integration with The Line and Oxagon
The lake in Trojena is not isolated. It is part of a larger plan that includes The Line, a zero-emission linear city, and Oxagon, the largest floating industrial complex in the world. This integration reflects the ambition of Saudi Vision 2030 to transform Saudi Arabia into a global hub of innovation.
The Neom megaproject is more than just concrete and steel. It represents a sustainable future, where construction and technology coexist in harmony with nature. It is a clear demonstration of how Saudi Arabia is redefining its role on the global stage.

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