HomeOur experienceDams

Dragados is a global leader in hydraulic projects. We have built over 250 dams and hydroelectric power plants worldwide, in fifteen countries across four continents.

The company is internationally renowned for the implementation of the latest specialised technologies in the construction of dam and hydraulic projects.

The company has contributed to the wellbeing of hundreds of communities around the world, vastly improving power production, water supply, irrigation, and flood-control systems, and fostering significant environmental improvements.

Dragados has acquired extensive experience building dams of different types and materials mostly concrete dams (gravity, arch-gravity, double arch, buttress, and roller-compacted (RCC)), and embankment dams (homogeneous, zoned, concrete-faced (CFRD) and asphalt-faced (AFRD)).


Dragados also has extensive experience in construction of hydroelectric power stations, in addition to thermal and nuclear power , pumping stations, irrigation ponds and storm ponds. We have built hundreds of miles of waterways including water tunnels and aqueducts, and irrigation water networks, water supply, sewage, cooling power plants and pipelines.

We have also participated in projects to recover the riverbanks, introducing environmental improvements in the waterways and restoring rivers in urban areas.

Examine the projects executed
Relevant Facts
Gravity Dam: 90
Arch Dam: 23
RCC Dam: 15
Embankment Dam: 72
Other types of Dams: 5
Hydro electricsl Power Plant: 45

Most important projects by specialty

An aerial view of the construction of the dam, specifically the central part of the dam
Calaveras Dam- California, USA
The Calaveras Dam will be one of the largest dams built in the State of California within the last 30 years. It will replace the existing dam, which has been operating since 1925. The new dam will be 220 ft. high with a length at crest of 1,210 ft
Aerial view of the hydroelectric dam evacuating water surrounded by hydroelectric posts in charge of transporting the energy
Portugues Dam - Puerto Rico, USA
The project included the construction of a roller-compacted concrete (RCC) thick-arch dam in the city of Ponce. The dam is 220 feet high, and 1,230 feet long at the crest, and it features an integral ski-jump spillway. The project also included the
Night aerial view of the central part of the dam, with a suspension bridge at the bottom of the dam
Caruachi Dam and HPP - Guayana, Venezuela
The Caruachi Dam and Hydroelectric Power Plant on the Caroni River (Guayana, Venezuela) is a 74-m high gravity concrete dam, and it has a length at crest of 809 meters. The dam has a structural volume of 1,700,000 m3 and a spillway capacity of 30,000
Night aerial view of the central part of the dam
Beni- Haroun Dam - Mila, Constantina - Algeria
The Beni-Haroun Dam, located on the El-Kebir River, in Mila, Algeria, some 44 miles west of Constantina, is a rectilinear RCC gravity dam 387 ft high with a length at crest of 2,343 ft and an impounding capacity of 781,000 acre-ft. It was the largest dam in the world at the time of its construction having 2,093,000 y3 of RCC and a total volume of concrete of 2,485,000 yd3. The Beni-Haroun Dam was designed for irrigation, water supply, and flood control.