In the Civil Works area, COMSA has a broad experience in the construction of roads, bridges and tunnels, as well as in airport, hydraulic and maritime works and urbanisation. In recent years, it has been awarded the contracts for work on large projects such as the Vielha Tunnel or the Dock of the Port of Barcelona, in addition to reinforcing its presence in the airport sector with its interventions in the Barajas Plan or at Barcelona Airport