It refers to the construction of large-scale infrastructures, assigned by different Public entities within Spain. It includes a wide range of works such as: airport works, railway works, road networks, large hydraulic infrastructures, maritime and environmental works.

Arroyo del Valle Viaduct
Extension of Alvedro Airport
Elevated motorway interchange in...
Minglanilla high-speed railway i...
Viaduct over the Pisuerga river
San Pedro de la Ribera Viaduct