The work has consisted in the demolition of a mining infrastructure called "Maria del Carmen", in Angustina, (Cantabria), owned by the company Fernández Rosillo y Cía. S.L. The facilities demolished were two cement silos, 2.00 and 2.50 meters diameter and 8 meters high, a kneading plant, 5 m2 in plant and about 15 meters in height, two conveyors, 18 and 35 meters in length, three aggregate storage and distribution hoppers, eight aggregate storage and distribution hoppers and one feeder and one crushing mill.