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Azvi

Lock in the Port of Sevilla

434 m
LENGTH
Spain
COUNTRY
€200
MILLION

As part of the work to improve maritime access to the Port of Seville, Azvi built a new lock to replace the previous one, built 50 years earlier.

Azvi

Maritime work

Construction of a lock featuring a 434m long reinforced concrete structure, with a 35 m pipe span. The project also included maintaining walls up to 20 metres high and 4 metres wide. The project required 300.000 m³ of concrete and 20 million kilograms of corrugated steel.

Key figures

434 m
length
300,000 m³
concrete
20 million
kilos of corrugated steel

Main works

  • A key feature of the project is the construction of the watertight enclosure measuring 600m in length, 300 m in width and 20 m in depth below the phreatic water level. To achieve this, it was necessary to remove 1.6million m³ of earth. For water tightness, we created a betonite-cement perimeter of 30 m in depth and 1 m thick, maintaining the enclosure dry during construction.
  • The lock includes four sliding doors each measuring 42x20x6 m which required the use of more than 3 million kilograms of iron for their fabrication. We have also installed 3 tilted bridges, two for roadways and one for rail.
  • The construction was completed with 4 piling docks, closure dams and a “Duque de Alba” type berth in the 30 m ante-lock.

Azvi
Azvi

Land work

The land work was completed with the construction of 4 buildings (control tower, machinery, and general services), the infrastructure and the construction of roads and train access to the 3 mobile bridges. .

Sostenibilidad

The project is aligned with the new model of environmental sustainability. Firstly, this includes compliance with the designed environmental monitoring program, which involved prior archaeological intervention and reports regarding protected flora and fauna. Additionally, a reduced amount of energy is required for the new lock operation as it takes advantage of the natural water level variations caused by the tides.

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