The action consists of construction site supervision of 16 high-pressure branch lines in trench-buried pipes for water supply, with diameters of between 125 and 900 mm, predominantly in ductile iron. The line has a total length of 187 km. Specific points were resolved with provisional channel diversions or pipe-jacking under existing road infrastructures. The project included an on-site team to perform the geometric, quantitative and quality supervision of site execution, coordinate occupational health and safety, and perform archaeological and environmental monitoring; and a studio team to provide technical advice on hydraulic, structural, geo-technical and environmental issues to site management.