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The floodgate separates the water level downriver, which varies with the tides, the periods of rain and the ebb tide, from the water level upriver, in the marina, which has a constant depth and is not subject to tides.

ULMA Construcción has contributed to the infrastructure improvement in the Basque Country through the construction of the Eskoriatza North-Arrasate North stretch, which is part of the Eibar-Vitoria Highway. Several projects have been completed within this stretch, such as the Izurieta-Apotzaga tunnel covering 260 meters, which opens out onto the Basagoiti viaduct, of 427 meters, designed to save the existing river bed. Additionally, there are two overpasses that allow overcoming the complex orography.

The largest shopping mall in the province of Lublin, with a total surface area of 126,000 m², it consists of two large hypermarkets and 70 shops, as well as a roof and a multi-level parking garage of 18,500 m².

This project deals with the access to the Control Tower in the extension of Barajas Airport, Madrid.